NewBacklink

Free SEO & webmaster tools

23 free tools, no signup. Each one checks the real thing live and tells you where its data comes from.

SEO Tools

SEO Checker Audit any page: tags, speed basics, content and AI readiness. Meta Tag Checker Title, description, robots, canonical, Open Graph and more. Open Graph Checker Preview your Facebook, LinkedIn and X share cards and test the og:image. Schema Markup Validator Check JSON-LD against schema.org and Google’s required properties.

Technical SEO Tools

Robots.txt Checker Parse robots.txt and test any path for Googlebot and AI crawlers. Sitemap Checker Find and validate XML sitemaps against the sitemaps.org rules. Log File Analyzer See exactly which pages Googlebot and other crawlers hit — and, with your sitemap, which they missed. Redirect Checker Follow every hop: status codes, chains, loops and HTTPS. Broken Link Checker Crawl up to 100 pages and find every link that is broken.

Domain Tools

WHOIS Lookup Registrar, dates, status codes and nameservers for any domain. Domain Age Checker How long a domain has been registered, and when it expires. DNS Lookup A, AAAA, CNAME, MX, NS, TXT, SOA and CAA records, plus SPF and DMARC. SSL Checker Certificate trust, expiry, hostname coverage, chain and TLS version. Domain Authority Checker NewBacklink Domain Score from the Common Crawl web graph — up to 20 at once.

Website Tools

Website Speed Test Lighthouse performance score, Core Web Vitals lab metrics and fixes. HTTP Header Checker See the status, redirects, server, caching, compression and security headers. CMS Detector Which CMS, site builder and technologies a website runs on.

AI SEO & AI Visibility Tools

AI Citation Checker Does AI name your brand? Looked up in our daily AI Citation Index. LLMs.txt Generator & Checker Validate an existing llms.txt, or generate a draft from your homepage. AI Text Humanizer Rewrite AI or draft text so it reads naturally — clearer, more human, less robotic.

Backlink Tools

Guest Post Finder Sites that accept guest posts in your niche — every one opened and checked live.

Keyword Tools

Keyword Density Checker The words and phrases a page repeats most, with density and placement. Keyword Generator Enter your website and get keyword ideas from your niche, grouped by search intent.

A–Z