lintpage
~/tools
§ free forever · no login · no email

One-shot inspectors.

Single-purpose tools for debugging one piece of HTML at a time. Paste, inspect, fix. Try auditing localhost before deploy. When you want the full audit, run a scan.

01 / 16 · most usedCORE

Meta Tag Checker

Find out if search engines can properly read your page's title, description, and robots tags — before your rankings suffer.

inspect →
02 / 16INDEXING

Robots.txt Checker

Make sure your robots.txt isn't accidentally blocking Google from crawling your site — the #1 cause of zero organic traffic after launch.

validate →
03 / 16AI VISIBILITY

AI Crawler Checker

Most "AI crawler" tools only parse your robots.txt. We actually fetch your site as each bot and tell you what they really see. Catches Cloudflare and WAF blocks that other tools miss.

inspect →
04 / 16SOCIAL

Open Graph Checker

See exactly how your link looks when shared on Twitter, LinkedIn, and Slack — and fix ugly, text-only previews before anyone clicks share.

preview →
05 / 16INDEXING

Sitemap Checker

Make sure search engines can find every page on your site. A broken or missing sitemap means Google discovers your pages on its own — which can take weeks.

validate →
06 / 16STRUCTURE

Heading Structure Checker

Check if your heading structure helps or hurts your SEO. Skipped levels, missing H1 tags, and broken hierarchy confuse Google about what your page is actually about.

outline →
07 / 16SECURITY

SSL Certificate Checker

Verify your SSL certificate is valid, trusted, and not about to expire — an expired cert throws a full-screen browser warning that kills every visitor and tanks your rankings.

inspect →
08 / 16INDEXING

Redirect Checker

Follow every hop a URL takes before it lands. Long redirect chains and 302s where you meant 301 leak link equity and slow your pages — see the whole path in one shot.

trace →
09 / 16SEO

Structured Data Checker

Check whether your Schema.org structured data is valid and complete — missing required fields silently disqualify your pages from rich results in Google.

validate →
10 / 16SEO

Broken Link Checker

Find the dead internal links on any page before Google does. Broken links waste crawl budget, frustrate visitors, and signal a neglected site to search engines.

scan →
11 / 16PERFORMANCE

Core Web Vitals Checker

Catch the page-level issues that wreck your Core Web Vitals — slow TTFB, lazy-loaded hero images, render-blocking scripts, and layout shift — before they cost you rankings.

measure →
12 / 16SECURITY

Security Headers Checker

Grade your site's HTTP security headers in seconds. Missing headers like CSP and HSTS leave you open to clickjacking, MIME sniffing, and protocol-downgrade attacks.

scan →
13 / 16INDEXING

Canonical Tag Checker

Verify your rel="canonical" tag points to the right URL. A wrong or missing canonical tells Google to index the wrong page — or splits ranking signals across duplicates.

inspect →
14 / 16AI VISIBILITY

llms.txt Checker

Validate your llms.txt against the llmstxt.org spec - and find out whether your robots.txt is blocking the same AI crawlers the file is written for.

validate →
15 / 16AI VISIBILITY

llms.txt Generator

Generate a spec-valid llms.txt from your own sitemap and page metadata - sectioned, annotated, and ready to edit before you ship it.

generate →
16 / 16SEO

Favicon Checker

Find out why your favicon shows in the browser tab but not in Google's search results - often an SVG-only icon Google does not use, or a declared icon that 404s.

inspect →
§ all 16 tools, run at once

Skip the one-by-one. Run the full audit.

Every tool on this page is a rule inside our pre-launch scanner. One URL in, full incident report out, ~30 seconds.