Site Check
Test your website in more than 80 tools:
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Analyze Your Website
Editor’s Choice
Website Performance Analyzer (WebPageTest)
SEM Analyzer
Website Analyzer (Accessify)
Website Technology Analyzer (BuiltWith)
Malware and Security Scanner
General
Domain Analyzer
Reputation and Safety Checker
Website Analyzer (Accessify)
Website Analyzer (Easy Counter)
Website Analyzer (Fagan Finder)
Website Analyzer (Mozilla)
Website Analyzer (Nibbler)
Website Analyzer (Open Admin Tools)
Website Analyzer (StatsCrop)
Website Analyzer (UITest.com)
Website Analyzer (web.dev)
Website Analyzer (Yellow Lab Tools)
Website Hosting Checker
Website Hosting Location Checker
Website Press Monitor
Website Technology Analyzer (BuiltWith)
Website Technology Analyzer (My Codeless Website)
WHOIS Analyzer (DomainTools)
WHOIS Analyzer (Whois.com)
WHOIS and Hosting Analyzer
Accessibility
Accessibility Checker (FAE)
Accessibility Checker (WAVE)
Breakpoint Viewer
Colorblind Web Page Filter
Design Responsiveness Tester (Am I Responsive)
Design Responsiveness Tester (Website Planet)
Mobile-Friendliness Checker
Section 508, WCAG 2.0, and BITV 1.0 Checker
WCAG 2.0 and 2.1 Checker
WCAG 2.0 Checker (TAW)
WCAG 2.1 Checker (Level Access)
Code
CMS Detector
Code Viewer
Content-to-Code Ratio Calculator
CSS Analyzer (CSS Stats)
CSS Analyzer (Lea Verou)
CSS Analyzer (Project Wallace)
CSS Efficiency Checker
CSS Quality Checker
Google Structured Data Tester
HTML Form Checker
HTML Outline Extractor
IndieWeb Checker
Inline CSS Checker
Internationalization Checker
Link and Image Checker
Link Checker (Dead Link Checker)
Link Checker (Dr. Link Check)
Link Checker (W3C)
Metadata Viewer
Microformats Analyzer
Semantics Extractor
Sitemap Checker
WordPress Plugin Detector
WordPress Theme Detector
Yandex Structured Data Tester
Conformance
AMP Validator
CSS Validator
DAML Validator
Facebook Validator
hCard Validator
HTML, CSS, and Conformance Validator
HTML Validator
LinkedIn Validator
MIP Validator
P3P Validator
RDF Validator
robots.txt Validator (Merkle)
robots.txt Validator (Ryte)
RSS and Atom Feed Validator (W3C)
SBML Validator
Sitemap Validator
SVG Validator
Twitter Validator
XML Schema Validator
XML Validator
XML Well-Formedness Checker and Validator
XML-RPC Validator
Network
C Class IP Checker
DNS Analyzer
DNS Propagation Checker
Domain and IP Blacklist Checker
Domain and Server Health Checker
Domain Port Scanner
Gzip and Brotli Checker
Gzip Checker
HTTP Header Tester
HTTP Header Tester, Advanced
HTTP Request Map Generator
HTTP Response Analyzer
HTTP Status Code Checker
HTTP/2 Tester
HTTP/3 Tester
IP Address Tracker
IP History Checker
IPv6 Checker
MX Lookup
Name Server Lookup
Ping Tool
Ping Tool, Regional
Redirect Checker
Traceroute Tool
URL Shortener Redirect Checker
Website Blockade Checker for China (Comparitech)
Website Blockade Checker for China (Dotcom-Tools)
Website Blockade Checker for England
Website Blockade Checker for Iran
Website Blockade Checker for Russia
Performance
Availability Checker (isitdownrightnow.com)
Availability Checker (NotOpening.com)
Availability Checker, Regional (Site24x7)
Availability Checker, Regional (Uptime.com)
CDN Use Checker
CLS Calculator
HTML Size Analyzer
Image Performance Analyzer
JavaScript Savings Analyzer
Load Time and Object Checker
Load Time Checker
Mobile Performance Checker
Mobile Readiness Tester
PageSpeed Results Comparer
Web Vitals Analyzer (Calibre)
Web Vitals Analyzer (SpeedVitals)
Website Batch Performance Analyzer
Website Browser and Location Speed Tester
Website Performance Analyzer (Fast or Slow)
Website Performance Analyzer (GTmetrix)
Website Performance Analyzer (KeyCDN)
Website Performance Analyzer (PageSpeed)
Website Performance Analyzer (Pingdom)
Website Performance Analyzer (Uptime.com)
Website Performance Analyzer (Uptrends)
Website Performance Analyzer (Waterfaller)
Website Performance Analyzer (wattspeed)
Website Performance Analyzer (WebPageTest)
Security
Abuse Contact Lookup
Content Security Policy Validator (CSP Validator)
Content Security Policy Validator (Google)
Cookie Use Checker
Cross-Site WebSocket Hijacking Tester
DNSSEC Checker
Email Blacklist Checker
IP Spam Checker
Malware and Security Scanner
Site and Origin Comparer
SPF Record Checker
SSL Certificate Checker
SSL Server Tester
Virus Scanner
Website Certificate Fingerprint Checker
Website Privacy Checker
Website Scam Checker (Scamadviser)
Website Scam Checker (ScamAnalyze)
Website Security Checker (Google)
Website Security Checker (Norton)
SEO/SEM
Ads and Keywords Analyzer
Backlink Analyzer (Ahrefs)
Backlink Analyzer (Monitor Backlinks)
Backlink Analyzer (seobility)
Backlink Anchor Text Analyzer
Canonical URL Checker
Domain Age Checker
Engagement Analyzer
Google Rich Results Checker
Google Title Rewrite Checker
Keyword Density Checker
Keyword Position Checker
Keyword Use Checker
Link Analyzer
Market Finder
Metadata Analyzer and Search Engine Emulator
nofollow
Checker
On-Page Optimizer
Search Engine Simulator
SEM Analyzer
SEO Analyzer (SEO SiteCheckup)
SEO Analyzer (SEO Workers)
SEO Analyzer (Spotibo)
Social Media Checker
Social Signal Counter (SharedCount)
Website Copy Checker
Website Data Analyzer and Value Estimator (siteprice.org)
Website Data Analyzer and Value Estimator (Website Value Calculator)
Website Data Analyzer and Value Estimator (Worth Of Web)
Website Traffic Cost Estimator
Website Trend
Uncategorized
Favicon Checker (Favicon Generator)
Favicon Checker (Favicon Kit)
Image Accessibility Analyzer
Image Metadata Viewer
Progressive JPEG Checker
Readability Checker (Juicy Studio)
Readability Checker (WebFX)
RSS Feed Analyzer
Spell Checker (SEO Workers)
Spell Checker (W3C)
Text Analyzer
Website Carbon Footprint Calculator
Website Change Monitor