GoScreenAPI
Site Report · developer-tools
Last updated: May 12, 2026

Stack Overflow Site Report

Stack Overflow is a Developer-tools website powered by Joomla and served through Cloudflare. Our automated analysis detected Vue, jQuery, Google Analytics and 4 other technologies, and the site currently delivers moderate load times (approximately 1,104 ms server response). Below you will find a detailed breakdown of the technologies, security configuration, and performance metrics we collected for Stack Overflow.

stackoverflow.com
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Screenshot of Stack Overflow

Technology Stack

Technologies detected on Stack Overflow

This site uses Joomla as its content management system, Cloudflare as the web server, Cloudflare for content delivery, Next.js, Nuxt.js, Laravel, Django on the server side, Vue, jQuery for client-side functionality, and Google Analytics for visitor analytics.

CMS / Platform

Joomla

Web Server

Cloudflare

CDN

Cloudflare

Frameworks

Next.js Nuxt.js Laravel Django

JavaScript

Vue jQuery

Analytics

Google Analytics

SSL Certificate

Security status for Stack Overflow

The SSL certificate is valid and issued by Let's Encrypt. It expires on July 18, 2026 (67 days remaining). The connection uses TLSv1.3.

Status

Valid

Issuer

Let's Encrypt

Expires

Jul 18, 2026

67 days remaining

Protocol

TLSv1.3

DNS Information

Domain name system records for Stack Overflow

Nameservers

damian.ns.cloudflare.com

sureena.ns.cloudflare.com

A Records

198.252.206.1

MX Records

aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

SPF Record

Present

DMARC Record

Present

Speed & Performance

Page load performance for Stack Overflow

The site has an acceptable load time, though there is room for improvement. Our analysis measured a server response time of 1,104 ms, a total page size of approximately 423 KB, and 84 external resources loaded on the page.

Rating

medium

Response Time

1,104 ms

Page Size

423 KB

Resources

84 requests

SEO Meta Tags

Meta tag analysis for Stack Overflow

The page title ("Newest Questions - Stack Overflow") is well-optimized at 33 characters, no meta description was found, Open Graph tags are fully configured for social sharing, and no canonical URL was found, which could lead to duplicate content issues.

Title Tag

33 chars

Newest Questions - Stack Overflow

Meta Description

Not set

Open Graph Tags

og:title Newest Questions
og:description Stack Overflow | The World’s Largest Online Community for Developers
og:image https://stackoverflow.com/Content/Sites/stackoverflow/Img/[email protected]?v=0f0cab681579

Mobile Friendliness

Mobile compatibility for Stack Overflow

Overall

Mobile Friendly

Viewport Meta

Present

Responsive Design

Detected

Quick Overview

HTTP Status 200
Response Time 1,104 ms
SSL Valid
Speed medium
Mobile good
CMS Joomla