Skip to content

Is IETF down right now?

ietf.org

Checking ietf.org…

Asking our locations to reach the site. This takes a few seconds.

Outage alerts

Get an e-mail when IETF goes down, and another when it is back.

Your address is used only for these alerts and deleted when you unsubscribe. Privacy policy

About IETF

IETF | Internet Engineering Task Force

The Internet Engineering Task Force (IETF) is the premier Internet standards body, developing open standards through open processes.

Visit ietf.orgTitle and description as published by the site.

Technical details

IP address
104.16.45.99
Server
cloudflare
Certificate issued by
Let's Encrypt
Certificate valid until
2026-12-03 (55 days left)

Response time, last 24 hours

2026-10-08 21:26 UTC: 22 ms2026-10-08 21:37 UTC: 22 ms2026-10-08 21:47 UTC: 20 ms2026-10-08 21:57 UTC: 19 ms2026-10-08 22:08 UTC: 26 ms2026-10-08 22:18 UTC: 20 ms
Green: response time (tallest bar 100 ms). Red: down. Amber: not confirmed.

Recent checks

TimeStatusLocationsResponse
2026-10-08 22:18 UTCUp3 of 320 ms
2026-10-08 22:08 UTCUp3 of 326 ms
2026-10-08 21:57 UTCUp3 of 319 ms
2026-10-08 21:47 UTCUp3 of 320 ms
2026-10-08 21:37 UTCUp3 of 322 ms
2026-10-08 21:26 UTCUp3 of 322 ms

We can reach it, but you cannot?

  • Reload the page without the cache: Ctrl + F5 on Windows, Cmd + Shift + R on a Mac.
  • Open the site in a private window. If it works there, clear the cookies and cache for ietf.org.
  • Try another network, such as mobile data. If that works, the problem is with your provider or router.
  • Switch to a public DNS resolver such as 1.1.1.1 or 8.8.8.8, then flush your DNS cache.
  • Turn off VPNs, proxies and ad blockers for a moment. Some sites refuse those connections.