Forensic Site Audits at Scale
Deep-crawl up to 10,000 pages per project, detect every technical fault, and get prioritized fixes — before issues kill your rankings. The most comprehensive technical SEO engine available.
Pages Crawlable
Issues Detected
Check Frequency
Uptime Checks
Everything in One Audit
Every technical check your site needs, automated and prioritized.
Deep Site Crawling
Crawl up to 10,000 pages per audit with customizable depth, speed, and URL exclusion rules. Handles JavaScript rendering, auth-protected pages, and sitemap-guided crawls.
Broken Link Detection
Identify all 404s, 410s, 5xx errors, and broken anchor links across your entire site. Find orphaned pages and dead internal links that bleed crawl budget.
Canonical Tag Validation
Detect self-referencing canonicals, conflicting signals between canonical tags and meta robots, and crawled pages that are canonicalized away from the sitemap.
Core Web Vitals (LCP, CLS, INP)
Pull live LCP, Cumulative Layout Shift, and Interaction to Next Paint scores from Google's PageSpeed API for every page. Track trends over time and see which pages fail Google's thresholds.
Uptime Monitoring
HTTP health checks every 10 minutes for every site. Instant downtime alerts via email and Slack. Tracks response time trends and flags when status codes change unexpectedly.
Schema.org Validation
Parse and validate structured data markup across all page types — Article, Product, FAQ, BreadcrumbList, LocalBusiness. Flag missing required properties and invalid value types.
Hreflang Tag Analysis
Detect missing return links, wrong language codes, and conflicting hreflang implementations across multilingual sites. Prevent international SEO cannibalization.
XML Sitemap Health
Parse and validate XML sitemaps including sitemap index files. Detect URLs not in sitemaps, 4xx/5xx URLs in sitemaps, and pages blocked by robots.txt but listed in sitemaps.
Robots.txt Analysis
Parse robots.txt for blocked important URLs, crawl-delay directives, and conflicting rules. Cross-reference blocked URLs against your sitemap and top-performing GSC pages.
Missing Meta Tags
Identify pages with missing title tags, meta descriptions, H1 headings, or duplicate meta data. Get character count analysis and suggestions for optimal tag lengths.
Redirect Chain Detection
Map all redirect chains and loops. Identify 301 vs 302 misuse. Flag pages with 3+ redirect hops that waste crawl budget and lose link equity.
NoIndex & NoFollow Audit
Detect accidental noindex tags blocking important pages from Google. Identify nofollow usage patterns, orphaned pages, and pages with no inbound internal links.
One Health Score. Every Issue Prioritized.
SERPHub calculates a 0–100 site health score weighted by issue severity. Errors hurt more than warnings. Warnings hurt more than notices. You always know exactly what to fix first.
- Errors: broken pages, missing canonical, blocked by robots
- Warnings: slow pages, duplicate content, thin pages
- Notices: missing alt text, long titles, low word count
- Score trends over time — see if you're improving
Site Health Score
Run Your First Free Audit in Minutes
No credit card. No setup. Just connect your site and watch the issues appear.
Start Free AuditTechnical SEO audits are available on all plans, including the Free plan.