# Internet Times — full-content map for AI crawlers
# https://internettimes.com

## Brand
Internet Times is a free network-diagnostics platform: DNS, IP, SSL, email-deliverability tools plus a unified domain audit. Self-hosted, privacy-first, no signup required.

## Tools (callable via /api/v1/<endpoint> with a free API key)
- [dns-checker](https://internettimes.com:80/dns-checker): Multi-resolver DNS propagation
- [dns-lookup](https://internettimes.com:80/dns-lookup): Authoritative DNS records (A/AAAA/NS/MX/TXT/CAA/SOA)
- [reverse-dns](https://internettimes.com:80/reverse-dns): PTR + FCrDNS
- [whois-lookup](https://internettimes.com:80/whois-lookup): Domain registration data
- [mx-lookup](https://internettimes.com:80/mx-lookup): MX records + SPF + DMARC
- [ip-lookup](https://internettimes.com:80/ip-lookup): IP geolocation + ASN
- [what-is-my-ip-address](https://internettimes.com:80/what-is-my-ip-address): Client IP detection
- [ip-blacklist-check](https://internettimes.com:80/ip-blacklist-check): RBL check across 30+ blocklists
- [ssl-checker](https://internettimes.com:80/ssl-checker): TLS configuration audit
- [http-headers](https://internettimes.com:80/http-headers): HTTP response header inspection
- [speed-test](https://internettimes.com:80/speed-test): Bandwidth + latency

## Audit
- [SuperTool Audit](https://internettimes.com:80/audit): paste a domain, get a sectioned report (DNS · email · TLS · network).

## Glossary
- [A record](https://internettimes.com:80/glossary/a-record): A DNS record that maps a hostname to an IPv4 address.
- [AAAA record](https://internettimes.com:80/glossary/aaaa-record): A DNS record that maps a hostname to an IPv6 address.
- [AEO](https://internettimes.com:80/glossary/aeo): Answer Engine Optimization — making content easy for LLMs to cite.
- [AI bot opt-out](https://internettimes.com:80/glossary/ad-blockers): Robots.txt directive blocking AI training crawlers.
- [ALPN](https://internettimes.com:80/glossary/alpn): Application-Layer Protocol Negotiation — TLS extension that picks HTTP/1 vs 2 vs 3.
- [Anycast](https://internettimes.com:80/glossary/cloudflare-anycast): IP routing trick where the same IP exists at many physical locations.
- [ASN](https://internettimes.com:80/glossary/asn): Autonomous System Number — identifies the network operator that owns an IP range.
- [Autonomous System](https://internettimes.com:80/glossary/autonomous-system): An independent network with a unique ASN.
- [BGP](https://internettimes.com:80/glossary/bgp): Border Gateway Protocol — the routing protocol between Autonomous Systems.
- [CAA record](https://internettimes.com:80/glossary/caa-record): Tells CAs which authorities are allowed to issue certs for this domain.
- [Certificate Transparency](https://internettimes.com:80/glossary/ct-log-term): Public append-only log of every TLS cert issued by a participating CA.
- [CGNAT](https://internettimes.com:80/glossary/cgnat): Carrier-Grade NAT — ISPs share one public IP across many subscribers.
- [CIDR](https://internettimes.com:80/glossary/cidr): Classless Inter-Domain Routing — IP ranges as prefix-length notation.
- [CNAME](https://internettimes.com:80/glossary/cname): A DNS record that aliases one hostname to another.
- [CNAME flattening](https://internettimes.com:80/glossary/cname-flattening): A nameserver feature that returns A records at the root despite CNAME being configured.
- [CORS](https://internettimes.com:80/glossary/cors): Cross-Origin Resource Sharing — browser policy that gates cross-domain fetches.
- [CRL](https://internettimes.com:80/glossary/crl): Certificate Revocation List — public list of revoked certs from a CA.
- [CSP](https://internettimes.com:80/glossary/csp): Content-Security-Policy — HTTP header that restricts which scripts/styles a page can load.
- [CT log](https://internettimes.com:80/glossary/ctlog): Certificate Transparency log — public append-only record of every TLS cert issued.
- [DKIM](https://internettimes.com:80/glossary/dkim): DomainKeys Identified Mail — cryptographic signature proving the message wasn't tampered with.
- [DMARC](https://internettimes.com:80/glossary/dmarc): Policy record that tells receivers what to do when SPF or DKIM fails.
- [DNS Propagation](https://internettimes.com:80/glossary/dns-propagation-term): The time for DNS changes to expire from caches worldwide.
- [FCrDNS](https://internettimes.com:80/glossary/fcrdns): Forward-Confirmed reverse DNS — the IP→hostname→IP round-trip must match.
- [HSTS](https://internettimes.com:80/glossary/hsts): Strict-Transport-Security — tells browsers to only ever talk to this host over HTTPS.
- [HTTP/2](https://internettimes.com:80/glossary/http2): Binary, multiplexed evolution of HTTP/1.1 — required for modern web performance.
- [HTTP/3](https://internettimes.com:80/glossary/http3): HTTP over QUIC — TCP-less transport with built-in TLS and 0-RTT.
- [JSON-LD](https://internettimes.com:80/glossary/json-ld): JSON for Linked Data — the modern way to embed Schema.org in HTML.
- [llms-full.txt](https://internettimes.com:80/glossary/llms-full-txt): Full-content variant of llms.txt — every page's content concatenated for LLM ingestion.
- [llms.txt](https://internettimes.com:80/glossary/llms-txt): Proposed standard listing the AI-readable resources on a site.
- [MIME type](https://internettimes.com:80/glossary/mime-type): Content-type identifier (e.g. text/html) sent in an HTTP response.
- [MX record](https://internettimes.com:80/glossary/mx-record): A DNS record that tells the world where to deliver email for a domain.
- [NS record](https://internettimes.com:80/glossary/ns-record): Names the authoritative nameservers for a domain.
- [OCSP stapling](https://internettimes.com:80/glossary/ocsp-stapling): TLS handshake optimization where the server attaches a fresh revocation proof.
- [PTR record](https://internettimes.com:80/glossary/ptr-record): Reverse-DNS record mapping an IP back to a hostname.
- [QUIC](https://internettimes.com:80/glossary/quic): Google-originated UDP-based transport protocol; HTTP/3's carrier.
- [RBL](https://internettimes.com:80/glossary/rbl): Realtime Blackhole List — a DNS-based list of IPs known for spam/abuse.
- [Registrar](https://internettimes.com:80/glossary/registrar): A company accredited to sell domain registrations.
- [Schema.org](https://internettimes.com:80/glossary/schema-org): Structured-data vocabulary embedded in HTML so machines can parse pages.
- [SNI](https://internettimes.com:80/glossary/sni): Server Name Indication — TLS extension that tells the server which hostname is requested.
- [SOA record](https://internettimes.com:80/glossary/soa-record): Start-Of-Authority — primary nameserver + admin email + zone timers.
- [SPF](https://internettimes.com:80/glossary/spf): Sender Policy Framework — lists which mail servers are allowed to send for a domain.
- [SRV record](https://internettimes.com:80/glossary/srv-record): Service-location record naming a hostname + port for a specific service.
- [Subdomain](https://internettimes.com:80/glossary/subdomain): A DNS name that's a child of another domain.
- [TLS](https://internettimes.com:80/glossary/tls): Transport Layer Security — encrypts traffic between client and server.
- [TLS 1.3](https://internettimes.com:80/glossary/tls-1-3): The current TLS version — faster handshake, dropped weak ciphers.
- [TTL](https://internettimes.com:80/glossary/ttl): Time-to-Live — how long a DNS record stays cached.
- [TXT record](https://internettimes.com:80/glossary/txt-record): A DNS record that carries arbitrary text — used for SPF, DMARC, and domain verification.
- [Webhook](https://internettimes.com:80/glossary/webhook): An HTTP POST sent automatically when an event happens.
- [WHOIS](https://internettimes.com:80/glossary/whois): Public registry data for a domain — registrar, creation date, expiry, name servers.
- [WHOIS server](https://internettimes.com:80/glossary/whois-server): The TLD-specific server that returns registration data for a domain.
- [X-Frame-Options](https://internettimes.com:80/glossary/xfo): HTTP header that controls whether a page can be loaded in an iframe.

## Recent posts
- [Understanding DNS: How the Internet's Phonebook Actually Works](https://internettimes.com:80/blog/understanding-dns-deep-dive): A practical guide to DNS resolution: how queries flow, what each record type does, and why "propagation" isn't really propagation.
- [Why Your Email Lands in Spam: SPF, DKIM, DMARC, and IP Reputation](https://internettimes.com:80/blog/email-deliverability-spf-dkim-dmarc): Most email deliverability problems are about authentication and reputation, not content. Here's the practical playbook for SPF, DKIM, DMARC, and PTR.
- [How to Read an SSL/TLS Certificate (Without the Jargon)](https://internettimes.com:80/blog/how-to-read-ssl-certificate): A practical guide to TLS certificates: SANs, chains, validity windows, OCSP stapling, and the errors you'll actually see in browsers.
- [What Your IP Address Actually Reveals (and What It Doesn't)](https://internettimes.com:80/blog/what-your-ip-address-reveals): A clear-eyed explainer of what an IP address actually exposes: ISP, ASN, approximate location, and the limits of geolocation, plus how VPNs and IPv6 change the picture.
- [How DNS Works (and how to debug when it doesn't)](https://internettimes.com:80/blog/how-dns-works): A practical tour of DNS lookups, the four common ways DNS breaks in production, and the fastest tools to find which one bit you.
- [What is My IP Address Really Showing?](https://internettimes.com:80/blog/what-is-my-ip-address-really): A reading-guide for the “What is My IP” answer — what the number actually represents and what to check next.
- [DNS Propagation Explained: Why Changes Take Time](https://internettimes.com:80/blog/dns-propagation-explained): How DNS propagation actually works, why it's entirely a caching phenomenon, and how to flush a TTL the right way.
- [How to Read a Speed Test Result](https://internettimes.com:80/blog/how-to-read-a-speed-test-result): Three numbers, four interpretations. A practical guide to reading bandwidth, ping, and jitter from any speed test.
- [IP Blacklists: Why Your Email Lands in Spam](https://internettimes.com:80/blog/ip-blacklists-why-email-spam): How RBLs work, why your sending IP is on one, and how to get off.
- [Difference Between IPv4 and IPv6](https://internettimes.com:80/blog/difference-ipv4-ipv6): IPv4 vs IPv6 explained in practical terms. When each one matters, and where you still need both.
- [What is an MX Record?](https://internettimes.com:80/blog/what-is-an-mx-record): What an MX record is, how priorities work, and the four ways MX setups break in practice.
- [The Anatomy of an SSL Certificate](https://internettimes.com:80/blog/anatomy-ssl-certificate): A field-by-field tour of a TLS certificate and what each one means in practice.
- [Common DNS Record Types](https://internettimes.com:80/blog/common-dns-record-types): The ten DNS record types every developer should know, what each does, and the gotchas.
- [How to Set Up a Custom Domain](https://internettimes.com:80/blog/set-up-custom-domain-dns): A step-by-step setup guide for connecting a new domain to a host, plus the five DNS records every site needs.
- [What HTTP Headers Tell You About a Website](https://internettimes.com:80/blog/what-http-headers-tell-you): Five HTTP headers worth reading on every site, what they mean, and what their absence signals.
- [Reverse DNS, PTR Records, and Email Deliverability](https://internettimes.com:80/blog/reverse-dns-ptr-email-deliverability): How reverse DNS works, what FCrDNS is, and why mail bounces without it.
- [WHOIS Privacy: What It Hides and What It Doesn't](https://internettimes.com:80/blog/whois-privacy-what-it-hides): What WHOIS still exposes after GDPR + privacy services, and how to read the remaining trust signals.

## Pricing
[See current tiers](https://internettimes.com:80/pricing). Free tier always exists. Paid via Stripe, PayPal, or Razorpay.