Website Audit Tool: A Full Technical SEO Audit for Every Page on Your Site
Crawl your entire site — up to 100,000 pages — and get every broken link, redirect chain, thin-content page, and missing tag laid out by severity, not buried in a spreadsheet.
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What is a technical SEO audit?
A technical SEO audit is an automated, page-by-page crawl of a website that finds the errors stopping search engines from indexing or ranking it properly — broken links, server errors, duplicate or missing tags, slow-loading pages, and thin content. SignalSumo runs this crawl for you and groups every issue it finds into Critical and Warning categories, with the exact page and line-level location of each one.
Key Takeaways
- Crawls up to 100,000 pages per project and surfaces every broken link, redirect chain, and missing tag grouped by severity.
- Checks 50+ technical signals per page including HTTP status codes, thin content, duplicate titles, and Core Web Vitals.
- Includes an optional JavaScript rendering mode for React, Vue, and other single-page app frameworks.
- Results appear within 2 minutes of starting a crawl; crawls can be paused and resumed without losing progress.
- Issues are scored by impact and categorised as Critical or Warning so you always know what to fix first.
- Generates a print-ready PDF report and exports raw data as CSV for client presentations and developer handoffs.
Prepping Your Site for AI Search: The 5 Pillars of GEO
AI engines (Gemini, SearchGPT, Perplexity) don't search like humans. They extract structured facts. Our audit tool automatically scores your pages across the 5 core pillars required to win AI search citations:
1. Entity Clarity
AI engines need to resolve who you are. We audit your brand name, social profile links, and organization markups to ensure unambiguous digital entity recognition.
2. FAQ Coverage
AI engines favor clear Q&A patterns. We detect presence of FAQ pages, collapsible details, and conversational question headings optimized to feed AI responses.
3. Schema Coverage
Structured data is the raw feed for AI queries. We inspect code for essential schemas like Organization, FAQPage, BreadcrumbList, and Person markups.
4. AI Extractability
How easily can an LLM parse your layout? We check H1-H3 structural hierarchies, average sentence lengths, active voice readability, and content word counts.
5. E-E-A-T Signals
Authority breeds citations. We audit your pages for author bio connections, external reference links, trust policies, and outbound trust attributes.
Most sites are leaking rankings and nobody's checked
Broken links pile up silently.
A 404 from an old migration can sit unnoticed for years, quietly wasting crawl budget and frustrating visitors.
Duplicate tags confuse search engines.
Two pages with the same title or meta description compete against each other instead of both ranking.
Thin content drags the whole site down.
A handful of under-300-word pages can lower how Google evaluates your entire domain's quality.
Manual audits don't scale.
Checking thousands of pages by hand (or in a spreadsheet) isn't realistic past a few dozen URLs.
Everything a real technical audit needs — none of the busywork
PageSpeed Insights & Core Web Vitals — built into every audit
After your crawl completes, SignalSumo automatically fires Google PageSpeed Insights across your key pages — homepage, highest-traffic URLs, and slowest pages found by the crawler. You get Lighthouse scores and real CWV data in the same dashboard, no manual PSI runs needed.
- 4 Lighthouse scores — Performance, Accessibility, Best Practices, SEO
- Core Web Vitals — LCP, INP, CLS measured via real Chrome data
- Desktop & Mobile — separate scores per device strategy
- Opportunity list — actionable fixes ranked by potential impact
Illustrative scores — your actual results appear in your audit report.
Configurable Crawl Limits
Choose a crawl size that matches your site and your plan: 200, 1,000, 5,000, 10,000, 50,000, or 100,000 pages per audit. No arbitrary caps hidden behind upsells mid-crawl.
Illustrative preview — set your actual limit inside the app.
Advanced Crawler Switches
Set crawl depth up to 10 levels deep, choose whether to include subdomains or stay strictly on the root domain, and toggle JS rendering on for JavaScript-heavy single-page apps that a basic crawler can't see.
Illustrative preview — configure inside the app.
Real-Time Crawl Controls
Pause a crawl, resume it later, or cancel it outright — all without losing the pages already scanned. Built for large sites where a full crawl takes time.
Data Gathered Per Page
Every page gets checked for HTTP status codes (200, 301/302, 404, 500), word count and thin-content flags, missing or duplicate titles, meta descriptions, and H1 tags, plus load time and page size.
Critical vs. Warning Reporting
Every issue lands in one of two buckets — Critical or Warning — with an affected-page count and the exact code-level location, so you always know what to fix first.
Embed Audit on Your Website
Put a live SEO audit form directly on your agency or client site. Visitors type their URL, SignalSumo runs the full crawl under your account, and leads land straight in your dashboard.
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From URL to full audit in four steps
Drop in your domain — no setup, no plugin, no code to install.
Pick your page limit, crawl depth, subdomain rule, and whether to render JavaScript.
Track progress live, or close the tab — SignalSumo keeps crawling and notifies you when done.
See every Critical and Warning issue, grouped and counted, with the exact pages affected.
Drop in your domain — no setup, no plugin, no code to install.
Pick your page limit, crawl depth, subdomain rule, and whether to render JavaScript.
Track progress live, or close the tab — SignalSumo keeps crawling and notifies you when done.
See every Critical and Warning issue, grouped and counted, with the exact pages affected.
Your audit doesn't expire the moment it finishes
Most audit tools hand you a PDF and disappear. SignalSumo keeps watching your site automatically every week — at no extra cost — and tells you the moment something breaks, long after the original crawl is done.
Priority Page Selection
After every audit, SignalSumo automatically builds a 6-page watchlist: your homepage, your money pages (pricing, services, contact), and your worst-performing pages.
Real Weekly Recrawl
Every week, SignalSumo actually re-fetches and re-scores each watched page — not a cached guess — so regressions get caught the same week they happen.
Monitoring Confidence Score
A transparent score tells you how much of your site's real SEO risk your watchlist actually covers — and nudges you to re-audit when it's time for a refresh.
Weekly Email Digest
A concise weekly email shows exactly what changed — score deltas, new issues, resolved ones — with one click back to your dashboard or a fresh full audit.
Example only — your weekly digest reflects your own monitored pages.
See exactly what you'll find — before you run your own audit
Example output from a 1,000-page crawl. Your results will reflect your own site's actual issues.
Example output — your results will reflect your own site.
Why crawl with SignalSumo instead of a spreadsheet — or a desktop tool you have to babysit
| Feature | SignalSumo | Manual / Spreadsheet | Typical Desktop Crawler |
|---|---|---|---|
| Crawl limit | Up to 100,000 pages | Realistically a few dozen URLs | Often capped by local machine memory |
| Runs in background | Usually requires app to stay open | ||
| JS rendering | Varies by tool / plan | ||
| Issue severity grouping | Critical vs. Warning, auto-grouped | Manual tagging | Varies by tool |
| Pause & resume |
More pages as you grow
Every paid plan includes the full toolkit. Plans differ only in how much you can use.
Frequently Asked Questions
Explore the Full SignalSumo SEO Suite
Backlink Checker
Audit your full backlink profile and identify referral linking targets.
Backlink checker →Keyword Research Tool
Generate high-volume search phrases and evaluate keyword difficulty scores.
Research keywords →Backlink Gap Tool
Compare your backlink profile against competitors to find link opportunities.
Backlink gap tool →Competitor Analysis
Deconstruct competitor search strategies and reveal keyword/link gaps side-by-side.
Competitor analysis →AI SEO Growth Plan
Consolidate audits and backlink profile data into a prioritized 30-day roadmap.
AI SEO Growth Plan →Backlink Monitoring
Track new and lost backlinks in real time with automated refresh cycles and authority-loss alerts.
Backlink monitoring →Find out what's actually wrong with your site
Your first 200-page audit is free. No card required.
Run a Free Audit