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ietf.org 200
🔒 SSL Valid
✨ About this site
This site belongs to the Internet Engineering Task Force, an open international community of network designers, operators, vendors, and researchers concerned with the evolution of the Internet architecture.
📊 What the data says
This website responds with an HTTP status of 200, runs on Cloudflare and Matomo, and was registered in 1995. It features the X-Frame-Options security header and an SSL certificate valid until January 11, 2027.
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 87d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 1600d
Hosting The company and location where this website's server is physically located.Read more →
Unknown
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
1/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
104.16.44.99
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
N/A
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
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Performance data not available yet.
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 2
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📊 Analytics
Matomo
🌐 CDN
Cloudflare
Screenshot
Processing...
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⏳
Screenshot is being captured...
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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| A (IPv4) | 104.16.44.99104.16.45.99 |
| AAAA (IPv6) | 2606:4700::6810:2c632606:4700::6810:2d63 |
| NS | ken.ns.cloudflare.comjill.ns.cloudflare.com |
| MX | 0 mx.ietf.org |
| TXT (5) |
Services configured via TXT:
Google2
+2 other TXT record(s)
Show all TXT recordsgoogle-site-verification=NQpGlv9isd8O_RHzO31C0lOw1XKfQfFoVhZbmir6Lm4 google-site-verification=mvpHmuqmM4wrWv5w3S1AAqssmhAITNo2QqPqVLrVWEo v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all vs58md9pf8hu6knlglfda9lk6g ca3-5567e36d3f9947308ac2892e009840cc |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | Cloudflare, Inc. |
| Registered | 1995-03-11 |
| Expires | 2031-03-12 (in 1600 days) |
| Last Updated | 2026-08-12 |
| Status | server delete prohibitedclient transfer prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | ietf.org |
| Issuer | Google Trust Services |
| Valid From | 2026-10-21 |
| Valid Until | 2027-01-19 (87 days left) |
| SANs (3) | ietf.orgtrustee.ietf.org*.trustee.ietf.org |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | cloudflare |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://www.ietf.org/ |
| x-frame-options | DENY |
| x-content-type-options | nosniff |
| referrer-policy | same-origin |
| cache-control | public, max-age=14400 |
| cf-ray | a4f30761ef3537c5-IAD |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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| IP Address | 104.16.44.99 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
C (4/7)
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Sitemap & Robots
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Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
Areas hidden from crawlers:
Admin & login
1
Search & filters
1
Show raw disallow rules (2)
/admin/
/search/
| Sitemap | Found 990 pages |
| Last modified | 2026-10-23 |
Social & Meta Tags
Complete
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| Title | IETF | Internet Engineering Task Force |
| Description | The Internet Engineering Task Force (IETF) is the premier Internet standards body, developing open standards through open processes. |
| OG Title | Home |
| OG Description | Read more about the Internet Engineering Task Force (IETF), the premier standards development organization (SDO) for the Internet. |
| OG Image | /media/images/ietf-logo-500-square-250x250.original.jpg |
| OG Type | website |
| OG Site Name | IETF |
| Twitter Card | summary |
| Language | en |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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| SPF | ✓ Present v=spf1 ip4:166.84.6.31 ip4:166.84.7.238 ip6:2602:f977:800:f7f6::/64 ip4:166.84.7.34 ip6:2602:f977:800::e276:63ff:fe66:3400 include:_spf.google.com include:spf.hostedrt.com ~all |
| DMARC | ✓ Present v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected] |
| MX Records | 0 → mx.ietf.org |
Other TLDs Other top-level domain variants of this domain name and their availability. 8 active 3 for sale 12 available
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Uptime Monitor
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| Current Status | 🟢 Online |
| HTTP Status | 200 |
| Response Time | 89ms |
| Last Checked | 2026-10-18 20:00:03.959278 |
| Uptime (30d) | 100% |