How do you check whether Stack Overflow is down?

We request stackoverflow.com every two minutes from servers in Dallas, Washington DC, Frankfurt and Singapore and record the HTTP status, response time, DNS and TLS details. An outage is declared when most regions fail for two consecutive rounds.

Stack Overflow is up but not working for me — what can I do?

Hard-refresh the page, try another network (mobile data vs Wi-Fi), switch DNS to 1.1.1.1 or 8.8.8.8 and flush your DNS cache, and check whether a VPN, firewall or parental control is blocking the site.

RESTRICTEDFor Developers4/4 regions OK · checked 11 min ago

Is Stack Overflow down?

stackoverflow.com is reachable but answered 403 to our probes. It is probably up and blocking automated or regional traffic — not an outage.

Website: stackoverflow.com
Response time: 187 ms (median)
Uptime (24 h): 100%
Last down: no outage in 90 days

Report a problemNo problem reports in 24 h

Response time — last 24 checks

Median across 4 regions, one point every 2 minutes. Red markers = round failed.

Last 24 hours

One bar per hour · colour = success rate · height = median response.

Latest check by region

Region	Result	Response	DNS	TLS expires	Server
Dallas, US	HTTP 403	5595 ms	7 ms	—	cloudflare
Washington DC, US	HTTP 403	105 ms	3 ms	—	cloudflare
Frankfurt, DE	HTTP 403	244 ms	4 ms	—	cloudflare
Singapore, SG	HTTP 403	130 ms	80 ms	—	cloudflare

Resolves to: 198.252.206.1

Service status history

Time (UTC)	Regions OK	Response
26 Oct 2026 17:00 UTC	4/4	187 ms
26 Oct 2026 16:58 UTC	4/4	156 ms
26 Oct 2026 16:56 UTC	4/4	168 ms
26 Oct 2026 16:54 UTC	4/4	146 ms
26 Oct 2026 16:52 UTC	4/4	167 ms
26 Oct 2026 16:50 UTC	4/4	147 ms
26 Oct 2026 16:48 UTC	4/4	154 ms
26 Oct 2026 16:46 UTC	4/4	166 ms
26 Oct 2026 16:44 UTC	4/4	168 ms
26 Oct 2026 16:42 UTC	4/4	161 ms
26 Oct 2026 16:40 UTC	4/4	153 ms
26 Oct 2026 16:38 UTC	4/4	168 ms

Time (UTC)	Regions OK	Response
26 Oct 2026 16:36 UTC	4/4	162 ms
26 Oct 2026 16:34 UTC	4/4	152 ms
26 Oct 2026 16:32 UTC	4/4	196 ms
26 Oct 2026 16:30 UTC	4/4	202 ms
26 Oct 2026 16:28 UTC	4/4	158 ms
26 Oct 2026 16:26 UTC	4/4	151 ms
26 Oct 2026 16:24 UTC	4/4	158 ms
26 Oct 2026 16:22 UTC	4/4	153 ms
26 Oct 2026 16:20 UTC	4/4	152 ms
26 Oct 2026 16:18 UTC	4/4	262 ms
26 Oct 2026 16:16 UTC	4/4	159 ms
26 Oct 2026 16:14 UTC	4/4	153 ms

Problems with Stack Overflow? Report it

No user reports in the last 24 hours. Anonymous, no account needed.

What this result means

The server answered HTTP 403 to automated requests from every region. That is a security policy (bot protection or geo-blocking), not an outage — the site is most likely fine in a normal browser.

1 · Browser

Hard-refresh: Ctrl+F5 (Mac: ⌘+Shift+R).
Try a private/incognito window — rules out extensions and stale cookies.
Clear cache & cookies for stackoverflow.com.

2 · DNS

Flush DNS: Windows ipconfig /flushdns, macOS sudo dscacheutil -flushcache.
Switch to 1.1.1.1 (Cloudflare) or 8.8.8.8 (Google) DNS.
Works on mobile data but not Wi-Fi? Your ISP's DNS or filtering is the culprit.

3 · Network

Disable VPN/proxy, or turn one on if your region blocks the site.
Check firewall, antivirus web-shield and parental controls.
Restart your router; ask a friend elsewhere to open this page.

Outages happening right now

Verdict rule: DOWN when most regions fail, DEGRADED when some fail or the median exceeds 3 s, RESTRICTED when the site answers 401/403/429 to our probes. Checks come from Dallas, Washington DC, Frankfurt and Singapore. Share: https://isitdownorme.com/stack-overflow