Is Stack Overflow Down?

stackoverflow.com

Check the current status of Stack Overflow (stackoverflow.com) with our real-time uptime checker. Operating in the Saas space, Stack Overflow relies on consistent availability to serve its audience. See the latest response time, HTTP status, and SSL certificate status below.

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Current Status

stackoverflow.com

HTTP Code

Response Time

SSL Certificate

Last Checked

Historical Uptime Statistics

Collecting data... Historical statistics will appear after the first few checks are recorded.

Outage History (Last 30 Days)

No outages detected in the last 30 days

Response Time (Last 24 Hours)

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About Stack Overflow

Stack Overflow is served by Cloudflare, delivered through Cloudflare. The site uses an SSL certificate issued by Let's Encrypt. Server response time is approximately 583ms, which is considered moderate.

DNS Information

A Records (IPv4)

198.252.206.1

Nameservers

damian.ns.cloudflare.com

sureena.ns.cloudflare.com

DNS Provider

Cloudflare

MX Records

aspmx.l.google.com (pri: 1)

alt3.aspmx.l.google.com (pri: 10)

alt4.aspmx.l.google.com (pri: 10)

alt1.aspmx.l.google.com (pri: 5)

alt2.aspmx.l.google.com (pri: 5)

Diagnostic Tools

Test from Multiple Locations

Port Checker

Port	Status	Response

Hosting Infrastructure

CDN: Cloudflare
Server: Cloudflare
Server IP: 198.252.206.1
Baseline Response Time: 583 ms

Frequently Asked Questions

As of our last check, stackoverflow.com is UP and accessible. The server responded in 253ms.

Stack Overflow is a Saas website. No outages have been recorded in the last 30 days.

We are still collecting response time data for stackoverflow.com. Check back soon for detailed performance metrics.

If stackoverflow.com is down for you, try these steps: 1) Clear your browser cache and cookies. 2) Try accessing the site from a different device or network. 3) Check if your DNS is resolving correctly. 4) Wait a few minutes and try again — the issue may be temporary. You can also use our multi-location check tool above to verify if the site is down globally or just for your location.

We perform automated uptime checks on stackoverflow.com every 5 minutes, 24 hours a day. This allows us to detect outages quickly and provide accurate uptime statistics. For real-time monitoring with instant alerts, consider signing up for our monitoring service.

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