# InfraNest > InfraNest is a hosted platform to manage domains, DNS, SSL certificates, cloud servers, uptime monitoring, status pages and dynamic IP across every provider from one dashboard. ## Product - [Features](https://infranest.io/features): manage DNS, domains, SSL, servers, monitoring, status pages and dynamic IP in one place - [Integrations](https://infranest.io/integrations): registrars, DNS, cloud and notification providers - [Solutions](https://infranest.io/solutions): for freelancers, agencies, domain investors and resellers - [Pricing](https://infranest.io/pricing) ## Free tools - [Domain Health Check](https://infranest.io/tools/domain-health): Website, certificate, DNS and email security for any domain, in one report. - [DNS Lookup](https://infranest.io/tools/dns-lookup): See every common DNS record for a domain, and what they say together. - [DNS Propagation Checker](https://infranest.io/tools/dns-propagation): See whether a DNS change has landed everywhere, and exactly when the last cache lets go. - [MX Lookup](https://infranest.io/tools/mx-lookup): Check a domain’s mail servers — and whether mail can actually reach them. - [SPF Record Generator](https://infranest.io/tools/spf-generator): Add a sender to your SPF record without breaking the one you have. - [SPF Checker](https://infranest.io/tools/spf-check): Check a domain’s SPF record and how close it is to the ten-lookup limit. - [DMARC Record Generator](https://infranest.io/tools/dmarc-generator): Read a domain’s mail setup and get the DMARC record it should publish next. - [DMARC Checker](https://infranest.io/tools/dmarc-check): Check a domain’s DMARC policy and whether it actually protects anything. - [Subnet Calculator](https://infranest.io/tools/subnet-calculator): Calculate network, broadcast, host range and usable hosts from a CIDR. - [Uptime Calculator](https://infranest.io/tools/uptime-calculator): Turn an uptime SLA percentage into allowed downtime per day, month and year. - [Is it down?](https://infranest.io/tools/is-it-down): Check whether a website is up or down, right now, from the edge. - [SSL Certificate Check](https://infranest.io/tools/ssl-check): Verify a domain serves a valid, trusted HTTPS certificate. ## Learn - [Documentation](https://infranest.io/docs) - [API](https://infranest.io/api): REST API, scoped tokens, OAuth and signed webhooks - [AI assistants (MCP)](https://infranest.io/features/mcp): connect Claude, ChatGPT, Cursor or VS Code to InfraNest's MCP server (https://api.infranest.io/mcp), on every plan. It reads your account and, when you allow it, handles on-call actions: acknowledge an incident, add a note, silence a monitor, check it again, start or end maintenance - [Developer docs](https://developers.infranest.io): API reference, OAuth, recipes and the MCP server for Claude, ChatGPT and coding agents (developer docs for assistants: https://developers.infranest.io/llms.txt) - [Glossary](https://infranest.io/glossary): DNS, SSL, email and infrastructure terms explained - [Blog](https://infranest.io/blog) ## Glossary terms - [A record](https://infranest.io/glossary/a-record): An A record is a DNS resource record that maps a domain name to an IPv4 address (32-bit number), enabling browsers and applications to find your server on the internet. - [AAAA record](https://infranest.io/glossary/aaaa-record): An AAAA record is a DNS record that maps a domain name to a 128-bit IPv6 address, serving as the IPv6 counterpart to the A record. - [ACME Protocol](https://infranest.io/glossary/acme): ACME Protocol is an automated standard for requesting, validating, and renewing SSL/TLS certificates between a client and a Certificate Authority. - [Anycast DNS](https://infranest.io/glossary/anycast-dns): Anycast DNS is a routing technique where multiple servers share the same IP address, automatically directing queries to the geographically or topologically nearest server. - [Apex domain](https://infranest.io/glossary/apex-domain): An apex domain is the root domain name without any subdomain prefix, such as example.com rather than www.example.com, and must host the SOA and NS records for the DNS zone. - [Authoritative DNS Server](https://infranest.io/glossary/authoritative-dns): An authoritative DNS server holds the actual zone data for a domain and answers DNS queries directly from its own records, not from cache. - [BIMI](https://infranest.io/glossary/bimi): BIMI (Brand Indicators for Message Identification) is an email specification that allows a sender's logo to display next to authenticated messages in supporting email clients. - [CAA record](https://infranest.io/glossary/caa-record): A CAA record is a DNS record type that authorizes which Certificate Authorities are permitted to issue TLS/SSL certificates for a domain. - [CIDR Notation](https://infranest.io/glossary/cidr): CIDR notation is a compact way to write an IP address and its network prefix length as address/bits (e.g., 192.168.1.0/24), replacing older class-based addressing to enable flexible subnetting and route aggregation. - [CNAME record](https://infranest.io/glossary/cname-record): A CNAME record is a DNS record that maps an alias hostname to its canonical (true) hostname, causing resolvers to look up the target name instead. - [Certificate Chain](https://infranest.io/glossary/certificate-chain): A certificate chain is an ordered sequence of X.509 digital certificates linking a server's end-entity certificate to a trusted root Certificate Authority, where each certificate is signed by the next one in the chain. - [Certificate Signing Request (CSR)](https://infranest.io/glossary/csr): A Certificate Signing Request (CSR) is a formatted message containing a public key and identifying information that an applicant sends to a Certificate Authority to request issuance of an SSL/TLS certificate. - [Certificate Transparency](https://infranest.io/glossary/certificate-transparency): Certificate Transparency is an open framework that logs all newly-issued TLS certificates to public, append-only registries, allowing detection of misissued or malicious certificates. - [Certificate authority](https://infranest.io/glossary/certificate-authority): A certificate authority (CA) is a trusted entity that issues and digitally signs SSL/TLS certificates after verifying the identity of the requester, establishing a cryptographic chain of trust. - [Content Delivery Network (CDN)](https://infranest.io/glossary/cdn): A Content Delivery Network (CDN) is a geographically distributed system of servers that caches and delivers web content from locations closer to end users, reducing latency and improving load times. - [Country-Code Top-Level Domain (ccTLD)](https://infranest.io/glossary/cctld): A country-code top-level domain (ccTLD) is a two-letter domain extension assigned to a specific country or territory, such as .uk for the United Kingdom or .jp for Japan. - [DKIM](https://infranest.io/glossary/dkim): DKIM (DomainKeys Identified Mail) is an email authentication method that uses cryptographic signatures to verify that a message was sent from and authorized by a specific domain, and that its content was not altered in transit. - [DMARC](https://infranest.io/glossary/dmarc): DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication policy protocol that lets a domain owner publish a DNS record instructing receiving mail servers how to handle messages claiming to be from that domain that fail SPF and DKIM checks. - [DNS](https://infranest.io/glossary/dns): DNS (Domain Name System) is a hierarchical, distributed database that translates human-readable domain names like example.com into IP addresses and other resource records needed to locate services on the internet. - [DNS Failover](https://infranest.io/glossary/dns-failover): DNS Failover is a high-availability technique in which a DNS provider monitors the health of backend endpoints and automatically directs traffic away from failed services by updating which IP address it returns in DNS responses. - [DNS Resolver](https://infranest.io/glossary/dns-resolver): A DNS resolver is software or a service that accepts DNS queries from clients and returns answers by iteratively querying authoritative nameservers and caching the results. - [DNS Zone](https://infranest.io/glossary/dns-zone): A DNS zone is an administratively autonomous portion of the DNS namespace, defined by delegation, for which a specific set of nameservers is authoritative and which contains a SOA record at its apex. - [DNS over HTTPS (DoH)](https://infranest.io/glossary/dns-over-https): DNS over HTTPS (DoH) is a protocol that encrypts DNS queries by sending them over HTTPS instead of unencrypted UDP, protecting query privacy from network observers. - [DNS propagation](https://infranest.io/glossary/dns-propagation): DNS propagation is the time it takes for a DNS record change to become visible everywhere, caused by the delay until cached copies of the old record expire at each resolver. - [DNSSEC](https://infranest.io/glossary/dnssec): DNSSEC (DNS Security Extensions) is a suite of protocols that add digital signatures to DNS records, allowing resolvers to verify that DNS responses are authentic and unmodified. - [Domain Backorder](https://infranest.io/glossary/domain-backorder): A domain backorder is a paid service that automatically attempts to register a domain name the moment it expires and becomes available for re-registration. - [Domain Registry](https://infranest.io/glossary/domain-registry): A domain registry is the centralized database and administrative authority that maintains the authoritative record of all registered domain names under a specific top-level domain (TLD) and manages the technical infrastructure for those domains. - [Domain Transfer](https://infranest.io/glossary/domain-transfer): A domain transfer is the process of moving a domain name from one registrar or owner to another, involving authorization codes and DNS record preservation. - [Domain registrar](https://infranest.io/glossary/domain-registrar): A domain registrar is an ICANN-accredited business that sells domain names and manages registrations on behalf of customers by communicating with the authoritative registry for each top-level domain. - [Drop-Catching](https://infranest.io/glossary/drop-catching): Drop-catching is the practice of monitoring expiring domain names and attempting to register them the moment they become available for public registration, typically using automated systems that submit registration requests at high speed. - [Dynamic DNS](https://infranest.io/glossary/dynamic-dns): Dynamic DNS (DDNS) is a method that automatically updates DNS records when an IP address changes, allowing a hostname to stay current without manual edits. - [EPP Code (Auth Code)](https://infranest.io/glossary/epp-code): An EPP Code (also called Auth Code or AuthInfo code) is a unique authorization password generated per domain at the registry level to prove that a domain transfer or registrant action is approved by the domain's current owner. - [Email Deliverability](https://infranest.io/glossary/email-deliverability): Email deliverability is the measurable ability of an email to reach a recipient's inbox rather than the spam folder or being rejected, determined by sender reputation, authentication status, and infrastructure signals. - [Generic Top-Level Domain (gTLD)](https://infranest.io/glossary/gtld): A Generic Top-Level Domain (gTLD) is a top-level domain that is not restricted to a country or territory, such as .com, .org, .net, or newer options like .tech and .app. - [Glue record](https://infranest.io/glossary/glue-record): A glue record is an A or AAAA record that a parent DNS zone publishes alongside a nameserver delegation to provide the IP address of a nameserver whose hostname is within the delegated child domain. - [HSTS](https://infranest.io/glossary/hsts): HSTS (HTTP Strict Transport Security) is an HTTP header that instructs browsers to only access a website over HTTPS, automatically upgrading any HTTP requests to secure connections. - [HTTPS](https://infranest.io/glossary/https): HTTPS is HTTP layered over TLS encryption, ensuring confidential and authenticated communication between a browser and web server using an X.509 certificate. - [Health Check](https://infranest.io/glossary/health-check): A health check is an automated periodic probe sent to a service or endpoint to verify it is operational and ready to receive traffic. - [Heartbeat Monitoring](https://infranest.io/glossary/heartbeat-monitoring): Heartbeat monitoring is the periodic transmission of a lightweight signal from a monitored system to confirm it is still running and responsive. - [ICANN](https://infranest.io/glossary/icann): ICANN (Internet Corporation for Assigned Names and Numbers) is the nonprofit organization that coordinates the global domain name system, IP address allocation, and internet protocol parameters. - [IPv4](https://infranest.io/glossary/ipv4): IPv4 (Internet Protocol version 4) is the fourth version of the Internet Protocol, using 32-bit addresses to route packets across networks and the internet. - [IPv6](https://infranest.io/glossary/ipv6): IPv6 is the successor to IPv4, using 128-bit addresses instead of 32-bit addresses to provide vastly more available addresses for internet-connected devices. - [Incident](https://infranest.io/glossary/incident): An incident is a detected event indicating unplanned service disruption, degradation, or security violation that requires investigation and response. - [Infrastructure as Code (IaC)](https://infranest.io/glossary/infrastructure-as-code): Infrastructure as Code (IaC) is the practice of managing and provisioning cloud servers, networks, storage, and other infrastructure through machine-readable definition files instead of manual or interactive configuration. - [Internationalized Domain Name (IDN)](https://infranest.io/glossary/idn): An Internationalized Domain Name (IDN) is a domain name that contains non-ASCII characters, such as accented letters or characters from non-Latin scripts, enabling domain registration in languages other than English. - [Latency](https://infranest.io/glossary/latency): Latency is the time it takes for a packet of data to travel from a source to a destination across a network. - [Let's Encrypt](https://infranest.io/glossary/lets-encrypt): Let's Encrypt is a free, automated nonprofit Certificate Authority that issues domain-validated SSL/TLS certificates via the ACME protocol. - [Load Balancer](https://infranest.io/glossary/load-balancer): A load balancer is a network device or service that distributes incoming traffic across multiple servers to improve performance, reliability, and capacity. - [MTA-STS](https://infranest.io/glossary/mta-sts): MTA-STS (SMTP MTA Strict Transport Security) is a standard that lets email domain owners publish a policy requiring mail servers to deliver messages only over encrypted TLS connections, preventing downgrade attacks. - [MTTR (Mean Time to Recovery)](https://infranest.io/glossary/mttr): MTTR (Mean Time to Recovery) is the average time it takes to restore a failed system or service to full operational status, measured from the moment of failure to complete recovery. - [MX record](https://infranest.io/glossary/mx-record): An MX record is a DNS resource record that specifies the mail server responsible for accepting email on behalf of a domain. - [Maintenance Window](https://infranest.io/glossary/maintenance-window): A maintenance window is a scheduled time period during which expected system changes—such as updates, patches, or deployments—occur, and monitoring alerts are temporarily suppressed to prevent false incident notifications. - [NS record](https://infranest.io/glossary/ns-record): An NS record is a DNS resource record that identifies which name servers are authoritative for a domain or subdomain. - [Nameserver](https://infranest.io/glossary/nameserver): A nameserver is a server that stores DNS records for a domain and answers queries to resolve domain names into IP addresses and other zone data. - [OCSP Stapling](https://infranest.io/glossary/ocsp-stapling): OCSP Stapling is an SSL/TLS optimization where a web server includes a time-stamped OCSP response from the certificate authority directly in the TLS handshake, eliminating the need for clients to contact the OCSP responder separately. - [Redemption Grace Period](https://infranest.io/glossary/redemption-period): Redemption Grace Period is a 30-day window after a domain expires during which the registrant can still recover and renew it, usually at standard renewal cost rather than a penalty fee. - [Registrar Lock](https://infranest.io/glossary/registrar-lock): Registrar Lock is a status flag set by a domain registrar that prevents the domain from being transferred, updated, or deleted without explicit authorization to remove the lock first. - [Reverse DNS](https://infranest.io/glossary/reverse-dns): Reverse DNS (rDNS) is the DNS lookup process that resolves an IP address back to a domain or hostname using PTR records, the inverse of a normal forward DNS lookup. - [Reverse Proxy](https://infranest.io/glossary/reverse-proxy): A reverse proxy is a server that sits between client requests and backend servers, forwarding requests on behalf of clients while masking the identity and location of the actual application servers. - [SAN Certificate](https://infranest.io/glossary/san-certificate): A SAN certificate is an X.509 SSL/TLS certificate that secures multiple hostnames, domains, or IP addresses under a single certificate using the Subject Alternative Name (SAN) extension. - [SLA](https://infranest.io/glossary/sla): An SLA (Service Level Agreement) is a formal, measurable commitment between a service provider and customer defining expected performance levels such as uptime percentage, response time, and support response times. - [SMTP](https://infranest.io/glossary/smtp): SMTP (Simple Mail Transfer Protocol) is the Internet standard protocol used to transmit and relay email between mail servers and from clients to mail servers for sending. - [SOA Record](https://infranest.io/glossary/soa-record): An SOA (Start of Authority) record is a mandatory DNS record that marks the beginning of a zone, identifies the primary nameserver, and specifies zone administration and transfer parameters. - [SPF](https://infranest.io/glossary/spf): SPF (Sender Policy Framework) is an email authentication protocol that publishes a DNS TXT record listing IP addresses and servers authorized to send email on behalf of a domain, allowing receiving mail servers to verify the sender's identity. - [SRV Record](https://infranest.io/glossary/srv-record): An SRV record is a DNS record type that specifies the hostname and port number for servers providing a specific service, enabling service discovery without hardcoded addresses. - [SSL certificate](https://infranest.io/glossary/ssl-certificate): An SSL certificate is a digital credential signed by a Certificate Authority that binds a public cryptographic key to a domain name, enabling servers to prove their identity and establish encrypted TLS connections with clients. - [SSL/TLS](https://infranest.io/glossary/ssl-tls): SSL/TLS is a cryptographic protocol that encrypts and authenticates data transmitted over networks, securing communication between clients and servers. - [Server Name Indication (SNI)](https://infranest.io/glossary/sni): Server Name Indication (SNI) is a TLS extension that allows a client to specify the hostname it is connecting to during the initial TLS handshake, enabling multiple HTTPS certificates to be served from a single IP address. - [Status Page](https://infranest.io/glossary/status-page): A status page is a public or private web page that displays the real-time operational state of a service's components and communicates incidents, maintenance, and uptime to users. - [Subdomain](https://infranest.io/glossary/subdomain): A subdomain is a domain name that is subordinate to a registered domain in the DNS hierarchy, created by prepending one or more labels to the parent domain (e.g., mail.example.com is a subdomain of example.com). - [Subnet Mask](https://infranest.io/glossary/subnet-mask): A subnet mask is a 32-bit number that divides an IPv4 address into network and host portions by using binary ANDing, where 1-bits identify the network/subnet part and 0-bits identify the host part. - [Synthetic Monitoring](https://infranest.io/glossary/synthetic-monitoring): Synthetic monitoring is a proactive technique that simulates user interactions with a system on a scheduled basis from external vantage points to measure availability, performance, and correctness. - [TLS Handshake](https://infranest.io/glossary/tls-handshake): A TLS handshake is the cryptographic negotiation protocol in which a client and server authenticate, agree on encryption parameters, and derive shared session keys before exchanging encrypted application data. - [TTL](https://infranest.io/glossary/ttl): TTL (Time To Live) is a numeric field in every DNS record specifying the maximum number of seconds a resolver or cache can store that record before it must be re-fetched from the authoritative nameserver. - [TXT record](https://infranest.io/glossary/txt-record): A TXT record is a DNS resource record that stores arbitrary text data associated with a domain, commonly used for email authentication policies, domain verification, and other machine-readable configuration. - [Top-Level Domain (TLD)](https://infranest.io/glossary/tld): A Top-Level Domain (TLD) is the rightmost part of a domain name, such as .com, .org, or .uk, that sits at the highest level of the DNS hierarchy. - [Traceroute](https://infranest.io/glossary/traceroute): Traceroute is a network diagnostic tool that maps the sequence of routers (hops) a packet travels through to reach a destination and measures the latency to each hop. - [Uptime monitoring](https://infranest.io/glossary/uptime-monitoring): Uptime monitoring is automated, repeated checking of a server, website, or service at regular intervals to detect when it becomes unavailable and alert you to outages. - [WHOIS](https://infranest.io/glossary/whois): WHOIS is a protocol and database system that records and makes publicly queryable the registration details of domain names, including registrant information, registrar, creation/expiration dates, and nameservers. - [Wildcard certificate](https://infranest.io/glossary/wildcard-certificate): A wildcard certificate is an SSL/TLS certificate with a hostname containing a leading asterisk (e.g., *.example.com) that secures an unlimited number of first-level subdomains with a single certificate. ## Blog posts - [What a good status page says during an incident](https://infranest.io/blog/good-status-page-incident-communication): A good status page tells customers what's broken, not everything your team knows. Here's what to post publicly, and where the on-call detail should actually live. - [Organizing a status page into two columns for readability](https://infranest.io/blog/two-column-status-page-layout): A long service list buries your subscribe form below the fold. Here's when a two-column status page layout helps, and what it does and doesn't change. - [Opening Jira or Linear issues from infrastructure events](https://infranest.io/blog/jira-linear-issues-from-infrastructure-events): Turn a certificate expiry or a monitor going down into a ticket your team already tracks — automatically, with the details filled in, in Jira or Linear. - [How to transfer a domain to another registrar, step by step](https://infranest.io/blog/transfer-domain-to-another-registrar): A practical walkthrough for moving a domain between registrars without downtime, covering unlocking, auth codes, timing, and the mistakes that cause failed transfers. - [Linking status page incidents to support conversations](https://infranest.io/blog/status-page-incident-links-support-tickets): Every status page incident can have a permanent link. Learn why that matters for support tickets, what the link should show, and how to use it well. - [Wildcard vs SAN certificates: which one do you actually need?](https://infranest.io/blog/wildcard-vs-san-certificates): Wildcard and SAN certificates solve different coverage problems. Here's how each works, where they fall short, and how to pick the right one for your domains. - [What a load balancer actually does (and when you don't need one)](https://infranest.io/blog/what-a-load-balancer-actually-does): Load balancers get bolted onto every architecture diagram by default. Here's what they actually do — health checks, routing, sessions — and when a single server is simpler and faster. - [How to read server metrics: rising trends vs one-time jumps](https://infranest.io/blog/read-server-metrics-trends-vs-jumps): A CPU or disk reading on its own tells you nothing — learn the techniques for telling a one-time spike from a genuine rising trend before it pages you. - [Why cron jobs break when daylight saving time changes (and how to fix it)](https://infranest.io/blog/cron-jobs-daylight-saving-time): Daylight saving transitions make scheduled jobs run twice or not at all, shift maintenance windows and on-call alerts, and send log timestamps backwards. Here's the fix. - [Dangling DNS records and subdomain takeover: how to find and remove them](https://infranest.io/blog/dangling-dns-records-subdomain-takeover): Learn how deleted cloud resources turn into dangling DNS records attackers can claim, and get a practical process for auditing and cleaning up a zone. - [Setting up alerts for pending server reboots and security updates](https://infranest.io/blog/server-reboot-security-update-alerts): Learn how Linux servers track pending reboots and stalled security updates, and how to get alerted before a quiet server turns into an outage. - [What's new — October 2026](https://infranest.io/blog/whats-new-2026-10): 42 product updates: DNS setup during domain purchase, branded alert emails, Automations for Linear and Jira, status page team view, server renaming, identity provider SSO and much more. - [Find and clean up unused reserved IP addresses](https://infranest.io/blog/unused-reserved-ip-addresses): A reserved IP address keeps getting billed long after its server is gone. Here's how to find orphaned addresses across providers and clean them up safely. - [SPF and DMARC across the top 10,000 domains: 2026 data](https://infranest.io/blog/spf-dmarc-top-10000-domains-2026): We ran our SPF and DMARC checkers over the 10,000 most popular domains. Only 55.7% of those that accept mail are fully protected. - [Move DNS between providers with a zone file](https://infranest.io/blog/move-dns-between-providers-zone-file): Manual DNS migration loses records and imports can silently fail. Learn how a standard zone file lets you preview every change before you switch providers. - [Reduce manual infrastructure work: what to automate first](https://infranest.io/blog/reduce-manual-infrastructure-work-automate-first): A practical priority order for automating infrastructure: DNS sync, certificate renewals, expiry alerts and dynamic IP updates, ranked by risk and effort. - [How often should you monitor your website?](https://infranest.io/blog/how-often-should-you-monitor-your-website): The right check interval depends on your SLA and the cost of missed downtime, not a default. Here's the math to pick yours. - [Cloud firewall rules explained: default-deny, inbound/outbound and common mistakes](https://infranest.io/blog/cloud-firewall-rules-explained): A practical breakdown of how cloud firewall rules actually work, why default-deny matters, and the ports people leave open without realising it. - [Reverse DNS explained: PTR records and why mail servers need them](https://infranest.io/blog/reverse-dns-explained): Reverse DNS maps an IP address back to a hostname using PTR records. Here's how it works, why mail servers check it, and how to set it up. - [SPF record too many lookups: how to fix the 10-lookup limit](https://infranest.io/blog/spf-record-too-many-lookups): Your SPF record fails with "too many DNS lookups" once it exceeds 10 mechanism lookups — here's why it happens and how to flatten or consolidate it safely. - [Infrastructure drift explained: what it is and how it creeps in](https://infranest.io/blog/infrastructure-drift-explained): Infrastructure drift is the gap between what your config says and what's actually running. Here's how it happens, how tools detect it, and how to stay ahead of it. - [IPv4 vs IPv6 explained: differences, dual-stack, and why it matters](https://infranest.io/blog/ipv4-vs-ipv6-explained): A practical comparison of IPv4 and IPv6 addressing, headers, and NAT — plus what dual-stack means for the servers you run today. - [What is synthetic monitoring? Scripted checks vs real users explained](https://infranest.io/blog/what-is-synthetic-monitoring): Synthetic monitoring runs scripted checks against your site or API on a schedule, catching outages before real visitors do. Here's how it works and when to use it. - [Certificate transparency explained: what CT logs are and why they matter](https://infranest.io/blog/certificate-transparency-explained): Certificate Transparency logs make certificate issuance public and auditable. Here's how CT works and how to use it to catch misissued certificates early. - [What's new — September 2026](https://infranest.io/blog/whats-new-2026-09): Cloudflare automations, domain verification, passwordless sign-in, smarter alerts, zone file import/export, cost tracking, and dozens more. - [Why your emails go to spam (and how to fix it)](https://infranest.io/blog/why-emails-go-to-spam): Emails land in spam because of broken authentication, poor sender reputation, or content that trips filters — here's how to diagnose and fix each one. - [What is DNSSEC and should you enable it?](https://infranest.io/blog/what-is-dnssec-should-you-enable-it): DNSSEC stops attackers from forging DNS answers, but it's opt-in everywhere and easy to misconfigure. Here's the threat it solves, the trade-offs, and when to turn it on. - [MX record not working: how to diagnose and fix broken mail routing](https://infranest.io/blog/mx-record-not-working): A step-by-step guide to diagnosing why your MX record isn't routing mail, covering priorities, trailing dots, CNAME targets and stale records. - [How to secure your infrastructure in 2026: a practical checklist](https://infranest.io/blog/secure-infrastructure-2026): A practitioner's checklist for securing DNS, TLS, servers and monitoring in 2026 — covering zero trust, DNSSEC, certificate automation and supply chain hygiene. - [Why infrastructure inventory is important (and what to track)](https://infranest.io/blog/why-infrastructure-inventory-is-important): An unmanaged domain, a forgotten server, or an expired certificate can take down production. Here's why infrastructure inventory is the foundation of reliable, secure operations. - [When should you use cloud firewalls?](https://infranest.io/blog/when-should-you-use-cloud-firewalls): Cloud firewalls filter traffic before it reaches your server; host firewalls filter it after. Here's when to use each, and the sane defaults to start with. - [Ping vs HTTP vs HTTPS monitoring: what each check actually proves](https://infranest.io/blog/ping-vs-http-vs-https-monitoring): Ping, HTTP and HTTPS checks answer different questions about uptime. Here's what each one actually proves and why relying on ping alone is risky. - [Why browsers show "Not Secure": causes and fixes](https://infranest.io/blog/why-browsers-show-not-secure): Understand exactly why Chrome, Firefox and Safari flag a site as "Not Secure" and how to fix each cause, from missing HTTPS to mixed content and bad certificates. - [DMARC policy: none, quarantine or reject — which should you use?](https://infranest.io/blog/dmarc-policy-none-quarantine-reject): A practical guide to choosing p=none, quarantine or reject in your DMARC record, and how to move to full enforcement without breaking legitimate mail. - [Infrastructure drift detection: get alerted the moment your DNS or config changes](https://infranest.io/blog/infrastructure-drift-detection-alerts): Learn how drift detection catches out-of-band DNS and config changes before they cause an outage, and how to get alerted the moment it happens. - [What's new — August 2026](https://infranest.io/blog/whats-new-2026-08): Rebuilt certificate manager, multi-region uptime checks, cost reports, firewall controls, GitHub automations, and 15+ interface improvements. - [DNS propagation explained: why changes take time and how to check](https://infranest.io/blog/dns-propagation-explained): DNS propagation isn't a global sync — it's TTL-based caching. Here's what actually controls the delay and how to check a change safely. - [Cloudflare DNS not updating: causes and how to fix it](https://infranest.io/blog/cloudflare-dns-not-updating): Changed a DNS record in Cloudflare and nothing seems different? Here's how to tell a caching delay apart from a real config problem, and how to fix each. - [20 DNS security checks every domain should pass](https://infranest.io/blog/dns-security-checklist-20-checks): A practical DNS security checklist covering DNSSEC, CAA, SPF/DKIM/DMARC, zone transfers and nameserver hygiene — with commands you can run today. - [Hetzner vs DigitalOcean vs AWS: price, performance and features compared](https://infranest.io/blog/hetzner-vs-digitalocean-vs-aws): An even-handed comparison of Hetzner, DigitalOcean and AWS on pricing, instance types, bandwidth, SLAs and Kubernetes — so you can pick the right one for the job. - [Website monitoring explained: uptime, performance and SSL checks](https://infranest.io/blog/website-monitoring-explained): A practical breakdown of uptime, performance and SSL/expiry monitoring — what each one actually catches, how often to check, and where they overlap. - [How to catch an expiring domain: drop-catching & backorders explained](https://infranest.io/blog/how-to-catch-an-expiring-domain): What really happens when a domain expires, how drop-catching works, and when to use a backorder vs your own registrar — a practical guide to catching the names you want. - [SSL certificates explained: what they are and how the chain of trust works](https://infranest.io/blog/ssl-certificates-explained): A plain-English guide to how SSL/TLS certificates work, why the chain of trust matters, and how DV, OV and EV validation actually differ. - [How to create a secure SPF record](https://infranest.io/blog/create-secure-spf-record): Learn how to write an SPF record that actually stops spoofing, without tripping the 10-lookup limit that breaks most real-world setups. - [How to automate DNS, SSL and server tasks across every provider](https://infranest.io/blog/automate-dns-ssl-server-tasks-across-providers): A practical guide to automating DNS changes, certificate renewals and server actions across multiple providers, plus where centralised management beats juggling five dashboards. - [What's new — July 2026](https://infranest.io/blog/whats-new-2026-07): Passkeys, feedback, integrations hub, automations, keyboard shortcuts, and more — see what's new in InfraNest. - [Complete DNS record guide: A, AAAA, CNAME, MX, TXT, NS & CAA](https://infranest.io/blog/dns-record-types-guide): A practitioner's reference to the core DNS record types — A, AAAA, CNAME, MX, TXT, NS and CAA — with a real example and the standards behind each. - [Let's Encrypt vs commercial SSL certificates: which do you actually need?](https://infranest.io/blog/lets-encrypt-vs-commercial-ssl-certificates): A practical, even-handed comparison of Let's Encrypt and paid SSL/TLS certificates, covering validation levels, lifetimes, warranties and when each makes sense. - [How DNS resolution works: the root-to-authoritative walk explained](https://infranest.io/blog/how-dns-resolution-works): A practical walkthrough of DNS resolution: recursive vs authoritative resolvers, the root→TLD→authoritative query path, and how caching affects speed.