Free SEO & Webmaster Tools

Look up A, AAAA, CNAME, MX, NS, TXT, and SOA DNS records for any domain. Instant results, completely free, no signup required.

Get detailed IP address information including location, ISP, timezone, and approximate coordinates. Fast, free, and secure IP lookup online.

Verify SSL certificate details for any domain. Check issuer, expiration date, signature algorithm, and validity — fast and free with no registration.

Find domain ownership details, registrar information, creation and expiration dates, and nameservers. Fast, free WHOIS search for any domain.

Test if a website is online and measure its response time. Check server availability from multiple locations — free and instant.

Extract all visible text content from any webpage's source code. Strip away HTML tags and get clean, readable text instantly online.

Measure the Time to First Byte for any website. Check server responsiveness and identify performance bottlenecks instantly and for free.

Calculate the total download size of any webpage including all resources. Analyze page weight for performance optimization — free and instant.

Extract and analyze all meta tags from any webpage. Check title, description, keywords, viewport, robots directives, and Open Graph tags instantly.

Find out which hosting company or data center powers any website. Get ISP, organization, and location details instantly for free.

View all HTTP response headers returned by any URL. Check server configuration, caching policies, security headers, and redirects instantly.

Test if a website supports the modern HTTP/2 protocol. Faster loading, multiplexing, and better performance — check any site for free.

Find out if a specific URL is cached in Google's index. View the last cached date or see if the page is not yet stored by Google.

Trace the complete redirect path of any URL. See every 301, 302, and meta refresh hop with status codes and final destination URLs.

Find domain names hosted on a specific IP address. Discover what other websites share the same server — fast, free, and no registration.

Check if a website uses Brotli compression. Brotli offers superior file compression compared to Gzip, reducing bandwidth and improving page speed.

Calculate the percentage of visible text versus HTML code on any webpage. A higher ratio often indicates better content quality for SEO.

Check if a webpage is blocked from search engine indexing via meta robots tags, X-Robots-Tag headers, or robots.txt directives.

Scan any webpage to see which images are missing alt text. Improve accessibility and SEO by identifying images without descriptive alt attributes.

Scan your HTML for outdated, deprecated tags that should be replaced with modern alternatives for better compatibility and SEO.

Verify if a website has HTTP Strict Transport Security (HSTS) properly configured. Ensure visitors always connect securely over HTTPS.

Check if a website's server signature header reveals sensitive software version information that could be exploited by attackers.

Check if any website has a properly configured favicon. Verify the icon file exists and is correctly linked in the HTML head section.

Check any URL against Google's Safe Browsing database. Instantly know if a site is flagged for malware, phishing, or unwanted software.

Check if images on a webpage use native lazy loading. Identify which images will defer loading until they enter the viewport.

See exactly how your webpage title, URL, and meta description will appear in Google search results. Optimize your snippets for higher CTR.

Preview how your webpage will display in Bing search results. Optimize your titles and descriptions for better visibility on Microsoft's search engine.

Simulate how your webpage appears in Yandex search results. Perfect for optimizing meta data for Russian and Eastern European audiences.

Preview how your webpage will look when shared on Facebook, LinkedIn, X (Twitter), and other social platforms. Debug OG and Twitter Card tags.

Minify your HTML code by stripping unnecessary whitespace, comments, and formatting. Reduce file size for faster page loads instantly online.

Compress your CSS stylesheets by removing whitespace, comments, and unnecessary semicolons. Reduce file size for faster website performance.

Minify your JavaScript code by removing comments, whitespace, and shortening variable names. Optimize JS files for faster execution and loading.