Top Website Testing Tools
Easy to use and free. You can use them to check whether specific components of your website or server are operating properly.Website Testing Tools: Ensuring Quality and Performance
In today’s digital landscape, a website’s performance, usability, and reliability are critical for business success. Website testing tools help developers, QA engineers, and product managers identify and fix issues before they affect users. Let’s explore the key categories and popular solutions in this domain.
Why Website Testing Matters
- Functionality — all features work as intended;
- Performance — fast loading times and smooth interactions;
- Security — protection against vulnerabilities;
- Compatibility — consistent experience across devices and browsers;
- Accessibility — usability for people with disabilities;
- SEO-friendliness — proper indexing and ranking potential.
General
- Website Analyzer (Accessify) †
- Website Analyzer (Easy Counter) †
- Website Analyzer (Nibbler) †
- Website Analyzer (Open Admin Tools) †
- Website Analyzer (StatsCrop) †
- Website Analyzer (WooRank) †
- Website Hosting Checker †
- Website Hosting Location Checker †
- Website Technology Analyzer (BuiltWith) †
- WHOIS Analyzer (DomainTools) †
- WHOIS and Hosting Analyzer †
Accessibility
Code
- CMS Detector †
- CSS Analyzer (CSS Stats) †
- CSS Analyzer (Lea Verou)
- CSS Analyzer (Project Wallace)
- CSS Efficiency Checker
- CSS Quality Checker
- HTML Outline Extractor
- IndieWeb Checker
- Internationalization Checker
- Link Checker (W3C) ‡
- Microformats Analyzer
- Semantics Extractor
- WordPress Plugin Detector †
Network
- Availability Checker (isitdownrightnow.com) †
- Availability Checker (NotOpening.com) †
- DNS Analyzer (MxToolBox) †
- DNS Analyzer (NsLookup.io) †
- DNS Propagation Checker †
- Domain, IP, and Email Blacklist Checker †
- Domain Port Scanner †
- HTTP Response Analyzer
- HTTP Status Code Checker
- IP History Checker †
- MX Lookup (Google) †
- Ping Tool †
- Reverse IP and Domain Lookup †
- Website Block Checker for China, Russia, and Turkey †
Performance
Security
- Abuse Contact Lookup †
- Content Security Policy Validator
- DNSSEC Checker †
- Email Blacklist Checker †
- Malware and Security Scanner †
- SPF Record Checker †
- SSL Checker (EXPERTE.com) †
- SSL Checker (Qualys) †
- SSL Checker (SSL Shopper) †
- Website Headers Analyzer (Dries Buytaert)
- Website Headers Analyzer (Mozilla) †
- Website Headers Analyzer (Security Headers)
- Website Privacy Checker
- Website Scam Checker †
- Website Security Checker (Google)
- Website Security Checker (Norton)
SEO/SEM
- Ads and Keywords Analyzer †
- Backlinks Analyzer (NP Digital) †
- Backlinks Analyzer (seobility) †
- Backlinks Anchor Text Analyzer †
- Domain Authority Checker †
- Google Rich Results Checker
- Links and Content Analyzer †
- Plagiarism Checker
- Search Engine Emulator
- SEM Analyzer †
- Social Markup Previewer and Generator
- 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 Value Estimator †
- Links and Content Analyzer (Hypestat) †