Technical SEO
Technical SEO audit
Enter a website URL and get a deterministic technical SEO report: crawlability, indexing, structured data, hreflang, security headers, and DNS. Every finding has a severity and a fix. Free, no account
What this technical SEO audit checks
This tool runs a deterministic technical SEO audit against a URL and returns a structured report. It is the same class of checks an engineer runs by hand before a launch, automated and graded by severity. It does not guess: every finding is something measured on the page or in your site's configuration, with a clear fix.
The free audit covers the technical foundations that decide whether search engines can crawl, render, and trust your pages:
- Crawlability & indexing:robots.txt, sitemap.xml, canonical tags, meta robots, and noindex traps.
- Structured data:JSON-LD presence and validity, required and recommended properties.
- International:hreflang presence, reciprocity, and canonical alignment.
- Security & trust:HTTPS, HSTS, security headers, and DNS records (SPF, DMARC, DNSSEC).
- On-page technical signals:titles, meta descriptions, headings, and link structure.
How to read the report: severities
Findings are grouped by severity so you fix the things that actually block ranking first:
- P0 (Critical): blocks indexing or breaks trust (for example a stray noindex, a 404 in the sitemap, or mixed content). Fix before launch.
- P1 (High): a real SEO problem such as a missing canonical or a misconfigured security header. Fix within a couple of weeks.
- P2 (Medium): quality issues such as meta length or render-blocking resources.
- P3 (Low): nice-to-have polish.
The report also shows an audit confidence figure. When a check cannot be measured (for example an external service is unreachable), it is reported as a measurement gap, not a green pass, so a clean-looking report is never falsely reassuring.
How to run a technical SEO audit in 3 steps
- Paste your URL. Enter the full address including
https:// in the box above.
- Pick a suite. Quick scans the core; Standard adds DNS, link graph, and content signals; Deep adds bot-parity, image weight, validators, and history.
- Run it. The audit runs on our server and the report appears here, grouped by severity, with a fix for each finding.
Run a free technical SEO audit
Technical SEO audit: frequently asked questions
Is this technical SEO audit free?
Yes. Enter a URL and run it with no account and no card. The free suites cover crawlability, indexing, structured data, hreflang, security headers, and DNS. There is no per-day cap for ordinary use.
What does the audit actually check?
Robots and sitemap, titles and meta, canonical and hreflang, JSON-LD structured data, security headers and HTTPS, DNS records, and on-page technical signals. Each finding is graded P0 to P3 and comes with a one-line fix and the standard it is based on.
Does it crawl my whole site or log in?
It audits the pages it can discover from your sitemap, up to the page limit you choose. It does not log in, submit forms, or change anything on your site; it only reads what a search engine would read.
Why is it called “deterministic”?
The same page produces the same report every time. The checks are rule-based against published standards rather than opinion, so two runs of an unchanged page agree, which makes the report safe to track over time.
How we keep this audit honest
Aria Crawford, Technical SEO Engineer, maintains this audit and re-tests it against the published web standards it cites. Last verified: 2026-06-19.
The checks are calibrated against public references: Google Search Central documentation for crawling, indexing, and structured data; the schema.org specification; and web.dev for Core Web Vitals thresholds. Each finding links to the standard it is based on, and checks that cannot be measured are reported as gaps rather than passes.
