21 free tools for webmasters

Free Tools for Webmasters

Protect your content, secure your site, optimize for search. No signup required - just free, practical tools that work.

21
Free Tools
20+
AI Bots Tracked
16
Companies
Free
No Signup

Everything You Need to Manage Your Site

Practical tools that solve real problems. No fluff, no paywalls.

Security

Check security headers, verify SSL certificates, and block unwanted crawlers from accessing your content.

  • • robots.txt Generator
  • • .htaccess Generator
  • • Security Headers Checker
  • • SSL Certificate Checker
  • • CSP Generator
  • • Robots.txt Tester

SEO & DNS

Optimize your site for search engines, check DNS records, and look up domain information.

  • • Meta Tags Checker
  • • Social Media Preview
  • • DNS Lookup
  • • WHOIS Lookup
  • • Canonical Checker
  • • Hreflang Generator
  • • Schema Generator
  • • Sitemap Generator
  • • Word Counter
  • • Keyword Density Checker

Performance

Monitor your site speed, check redirects, analyze HTTP headers, and identify bottlenecks.

  • • Page Speed Checker
  • • Redirect Checker
  • • HTTP Headers Viewer
  • • .htaccess Tester
  • • Broken Link Checker

Available Tools

Free, no-signup tools to help you manage and protect your website.

robots.txt Generator

Create robots.txt rules to tell AI crawlers not to access your site.

Use tool

.htaccess Generator

Block AI crawlers at the server level for Apache and LiteSpeed.

Use tool

Security Headers Checker

Check your website's security headers and get a grade.

Use tool

SSL Certificate Checker

Verify SSL certificate validity and expiry date.

Use tool

Meta Tags Checker

Analyze your meta tags for SEO optimization.

Use tool

Social Media Preview

See how your links look on Facebook, Twitter, Slack, Discord.

Use tool

DNS Lookup

Look up A, AAAA, MX, TXT, NS, and CNAME records for any domain.

Use tool

Redirect Checker

Trace URL redirect chains and see status codes for each hop.

Use tool

HTTP Headers Viewer

View all HTTP response headers with security and caching analysis.

Use tool

Page Speed Checker

Get Lighthouse scores, Core Web Vitals, and optimization tips.

Use tool

WHOIS Lookup

Find domain registrar, expiry date, nameservers, and owner info.

Use tool

Canonical URL Checker

Verify canonical tags are set correctly to avoid duplicate content.

Use tool

CSP Generator

Build Content Security Policy headers with a visual editor.

Use tool

Hreflang Generator

Generate hreflang tags for multilingual websites.

Use tool

Schema Markup Generator

Create JSON-LD structured data for rich snippets.

Use tool

Robots.txt Tester

Test if URLs are allowed or blocked by robots.txt rules.

Use tool

.htaccess Tester

Test Apache mod_rewrite rules before deploying.

Use tool

Sitemap Generator

Create XML sitemaps for better search engine indexing.

Use tool

Broken Link Checker

Check multiple URLs for broken links and 404 errors.

Use tool

Word Counter

Count words, characters, sentences, and paragraphs with reading time.

Use tool

Keyword Density Checker

Analyze keyword frequency and density for SEO optimization.

Use tool
Coming Soon

Website Security Audit

Complete security assessment combining all checks.

AI Crawler Database

We track 20+ AI crawlers from 16 companies. Updated regularly as new bots emerge.

GPTBot
OpenAI
Training ChatGPT and GPT models
ChatGPT-User
OpenAI
ChatGPT browsing feature
OAI-SearchBot
OpenAI
OpenAI search feature
Google-Extended
Google
Training Gemini/Bard AI models
anthropic-ai
Anthropic
Training Claude models
ClaudeBot
Anthropic
Claude web browsing feature
FacebookBot
Meta
Training Meta AI models
Meta-ExternalAgent
Meta
Meta AI external data collection

Plus 12 more AI crawlers including Amazonbot, Cohere-ai, Diffbot, and others.

View all crawlers in our generators

Why Webmaster Zone?

Practical tools that just work. No accounts, no paywalls, no tracking.

Always Up-to-Date

We track new AI crawlers and update our database regularly. Stay protected without manual research.

Copy and Paste

Generate ready-to-use configs in seconds. No coding required. Works with any website or CMS.

No Signup Required

Use all tools instantly. No accounts, no email collection, no upsells. Just free, useful tools.

Get Started with Free Tools

Block AI crawlers, check your security headers, and more. All free, no signup.