Free Technical SEO SEO Tools
Free technical SEO tools for schema markup, hreflang, SSL, security headers, indexability, and structured data validation.
Bulk Schema Checker
Audit JSON-LD schema markup across up to 50 URLs. See schema types, errors, and warnings in one table. Free bulk schema checker. Free to use, no login required.
Email Deliverability Checker
Check SPF, DKIM, DMARC, MX, and BIMI records for any domain in one pass. See if you meet Google and Yahoo's bulk sender requirements, with copy-paste DNS record fixes. Free, no signup.
WordPress Broken Link Checker
Scan WordPress posts and pages for broken outbound links via the REST API. Check 404s, redirects, and timeouts. Free, no plugin required. Free to use, no login.
WordPress Content Auditor
Audit every post and page on any WordPress site via the REST API. Find missing meta titles, descriptions, H1 issues, and more. Free, no plugin needed.
Bulk Meta Robots Checker
Audit meta robots tags and X-Robots-Tag headers across up to 50 URLs. Detect noindex, nofollow, and blocking directives in bulk. Free, no account needed.
Google Index Checker
Diagnose why any URL isn't indexed by Google. Checks noindex tags, robots.txt blocks, canonical mismatches, and redirects instantly. Free, no login needed.
Page Authority Checker
Check free authority signals for any URL: domain age, HTTPS status, robots.txt and sitemap presence, internal link count, and Open PageRank score. No login required.
SSL Certificate Checker
Check any domain's SSL certificate instantly. See issuer, expiry date, days remaining, TLS version, and SANs. Works on any website. Free, no login required.
Domain Age Checker
Check when any domain was registered, when it expires, and who registered it. See exact age in years, months, and days. Free WHOIS lookup — no login required.
AMP Validator
Validate AMP pages for markup errors, missing components, and boilerplate issues. Ensure your AMP pages are cached by Google. Free AMP checker tool.
Internal Link Analyzer
Analyze internal links on any page. Find broken internal links, orphaned pages, and anchor text patterns. Optimize PageRank flow. Free internal link tool.
Nofollow Link Checker
Find all nofollow, sponsored, and UGC links on any webpage. Audit link equity flow and ensure correct rel attribute usage. Free nofollow link checker.
Open Graph & Twitter Checker
Check Open Graph and Twitter Card tags on any URL. Preview how your content looks when shared on Facebook, X, and LinkedIn. Free OG tag checker.
Pagination Checker
Check rel=next and rel=prev pagination tags on any URL. Ensure paginated series are crawlable and correctly implemented. Free pagination SEO tool.
Schema Checker
Validate schema.org structured data and JSON-LD markup on any URL. Detect errors that prevent rich snippets in Google Search. Free schema checker tool.
Security Headers Checker
Audit HTTP security headers and get a letter grade. Copy ready-made Apache, Nginx, and Cloudflare config snippets to fix issues fast. Free and instant.
Structured Data Generator
Generate valid JSON-LD structured data for Article, Product, FAQ, LocalBusiness, Breadcrumb and more. Copy-paste ready schema markup. Free tool.
FAQ
What technical SEO checks matter most?
Indexability (no accidental noindex or robots blocks), valid canonical tags, working HTTPS, and correct schema markup. Fix crawl blockers before optimizing content.
Does scrawl.tools store my URLs?
No. URLs are fetched only to generate your report and are not saved after the request completes.
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