Paste any URL. Get every on-page issue we find — ranked by impact, with the exact fix linked beside each finding. No signup, no email gate.
Works with the stack you ship on
What makes atlookup different
Each of the 187 signals we audit links to a public docs page explaining what we look for, why it matters, and exactly how to fix it.
Browse the issue libraryImages Missing Alt Text
IMG_ALT_MISSING
Missing H1 Tag
H1_MISSING
Site-wide deep crawls run on schedule. We surface regressions the day they ship — not three months later when traffic dips and someone asks what changed.
See scheduled auditsSCHEDULE
Weekly · Mondays 9:00
No vague "improve your SEO." Every finding ships with the exact element we flagged, the line it sits on, the rule it breaks, and the fix to apply — so you can verify it and act, not guess.
Browse the issue libraryAgency plan · Multi-workspace
Run audits across personal projects and client workspaces from one account — and let teammates see only what you've shared with them.
Keep your own projects separate from client work. One sidebar, one switch.
Invite teammates. Choose exactly which projects each one can see and edit.
Reports, schedules, and history stay inside the workspace they belong to.
Your brand on shared links, emails, and PDFs — set logo and colour once.
How it works
Drop any public URL into the search above. We don't need your email, your account, or your stack.
A real headless browser fetches the page exactly the way Google does — JS executed, lazy-loads triggered, third-parties measured.
Every flagged signal comes with where to look, why it matters, and the exact fix. Click any code for the full guide.
Pricing
Start free — no credit card. Cancel anytime from your billing dashboard.
Get started — 1 project, 300 monthly credits, full issue analysis.
For growing sites — 10 projects, 10K credits, scheduled audits, full advanced features.
Billed yearly · $168 / yr
For SEO agencies — 25 projects, 100K credits, white-label reports, queue priority.
Billed yearly · $588 / yr
Need a side-by-side comparison with SEMrush, Ahrefs, and Site Checker Pro? See the full pricing page →
FAQ
Yes — two ways to start free. (1) Audit any single URL with no signup at all — paste a URL on the home page, get findings in about a minute. (2) Sign up for the Free plan (no credit card required at signup).
Not for the no-signup single-page audit — just paste a URL on the home page. For anything beyond that single page (saved history, multiple projects, larger crawls, scheduled monitoring), you'll need an account — which is free to create with no credit card required.
A single-page audit typically completes in about a minute. Site-wide crawls scale with site size and your plan's concurrency — you'll see live progress while it runs.
Yes. We audit any publicly accessible URL regardless of the platform. We use a real headless browser, so JavaScript-heavy frameworks (Next.js, React, Vue) render correctly before analysis.
Every flagged issue includes where it was found, why it matters, and a “Read the full guide” link with the exact fix. You can hand the report to your dev team, or work through fixes yourself — no SEO background required.
Yes. Cancel anytime from your billing dashboard. Yearly plans give you ~26% savings; monthly is flexible. If we cannot collect a renewal, you drop back to the Free tier — your audit history is preserved.