Does slack.com support IPv6?
FailChecked · Software and payments
No. On November 6, 2026, slack.com published no AAAA record, so its home page cannot be opened over an IPv6-only connection at all.
4hosts loaded
2over IPv6
2IPv4 only
50%coverage
Hosts that block an IPv6-only load
These hosts publish an IPv4 address but no AAAA record. Over an IPv6-only connection the browser cannot fetch anything they serve.
- slack.com — the page itself
- a.slack-edge.com — <script src>, link rel=shortcut icon, link rel=stylesheet, <img src>
Every host the slack.com home page loads from
| Host | Protocol | AAAA record |
|---|---|---|
| slack.comThe page itself | IPv4 only | — |
| a.slack-edge.com | IPv4 only | — |
| cdn.cookielaw.org | IPv6 | 2606:4700::6812:572a |
| d34u8crftukxnk.cloudfront.net | IPv6 | 2600:9000:20a8:3000:14:d0c2:5800:21 |
Can I reach slack.com through an IPv6 proxy?
An IPv6-only route cannot reach this site. Use residential IPv4.
How this was measured
The IPv6 test loaded https://slack.com/ once on November 6, 2026, read every host the returned HTML asks a browser to fetch, and looked up AAAA and A records for each. Hosts added later by JavaScript are not counted, and other pages on the site can depend on different hosts. Results change as sites move providers.