Tools

Free online tools that speed up your web, SEO, network and development work. No signup required.

SEO & Analysis

Look up a domain’s registration, registrar and expiry details.

Measure a page’s response time (TTFB), size and total load time.

Extract the most frequent words on a page and their density.

Audit title, description, canonical and Open Graph tags.

Find a domain’s IP address and its reverse DNS record.

List A, AAAA, MX, NS, TXT, CNAME and SOA records.

Find the hostname (PTR) that an IP address resolves to.

Measure the TCP connection latency (ms) to a server.

Check an SSL certificate’s validity, expiry and issuer.

Inspect all HTTP response headers a server returns.

Check whether compression is active and how much it saves.

Follow a URL’s redirect chain and HTTP status codes.

Beautify, validate and minify JSON data.

Remove whitespace and comments from HTML to reduce size.

Shrink CSS by removing unnecessary characters.

Encode text to Base64 or decode it back.