Audit every page the way Google renders it.
300+ checks per page in a real Chromium browser — mobile, tablet, and desktop — with a captured screenshot behind every finding. Then your live Google data ranks each issue by the traffic it puts at risk.
Crawls stay on your machine — $0 per crawlEvidence screenshots, not guesswork
From $14/mo · 7 days free · No card required
Mobile 78 · Tablet 90 · Desktop 94 — parity gaps surfaced per URL
Inside a real-browser technical SEO audit
Static crawlers parse source HTML and miss everything that only exists in the rendered DOM. The Spider audits the page Googlebot actually indexes — then prioritizes like a growth team.
Render in a real browser
Every page executes its JavaScript in Chromium across mobile, tablet, and desktop viewports — SPAs, lazy content, and client-side redirects included.
313 checks, 23 categories
From crawlability, schema, and Core Web Vitals to AEO, llms.txt, local SEO, and accessibility — each finding carries a fix recommendation.
Grades you can defend
A nine-category weighted page score with A–F grades, plus a site-level score for SSL, robots.txt, sitemap, and llms.txt health.
Ranked by traffic at risk
Connected GSC + GA4 data weights every issue, so the fix list starts with what's actually costing you clicks — not alphabetical noise.
Watch it render every device
One crawl, three devices — mobile leads, tablet and desktop follow, and per-URL score gaps between them surface mobile-parity problems instantly.
Projects
Agent
Checks that only exist after rendering
Rendering parity, cloaking, AEO readiness — the signals you can't audit from view-source.
Screenshot evidence per finding
Each audited page is captured as rendered, per device — so every issue you escalate ships with proof, not a plugin's opinion.
Cloaking detection, scored
Every page is fetched twice — plain HTTP and full browser render — and the difference is scored 0–100, catching content Google sees but users don't (or vice versa).
AI-search readiness built in
A dedicated AEO check category: AI-crawler access in robots.txt, llms.txt completeness, FAQ schema gaps, and featured-snippet structure.
Per-device score gaps
Mobile, tablet, and desktop each get their own score per URL — parity gaps that tank mobile-first indexing stop hiding in averages.
Audit-to-audit comparison
Every crawl diffs against the last: new issues, fixed issues, and score deltas — prove a release helped, or catch the SEO regression it shipped.
One issue catalog, zero drift
Severity, impact, and fix guidance are defined once per issue and referenced everywhere — reports, MCP tools, and exports always agree.
One page, 313 checks, 12 report tabs
Every crawled page opens a tabbed report scored 0–100 per category — from metadata and Core Web Vitals to schema, local SEO, and a dedicated AI-search tab most crawlers don't have. Google Search and answer-engine best practices, in one pass.
Titles, meta descriptions, canonicals, robots directives, indexability
H1–H6 hierarchy, structure, keyword usage
Depth, readability, duplication, E-E-A-T signals, brand mentions
Internal/external, broken links, anchors, orphans, crawl depth
Alt text, dimensions, compression, modern formats, video SEO
JSON-LD validity, required props, rich-result eligibility
Open Graph, Twitter/X cards, share images & dimensions
Core Web Vitals (LCP, INP, CLS), TTFB, render-blocking
AI-crawler access, llms.txt, FAQ schema, snippet structure
LocalBusiness schema, NAP consistency, hours, geo-coordinates
hreflang tags, x-default, return links, language targeting
SSL/HTTPS, HSTS, mobile-friendliness, URL readability, a11y
Every check backed by a screenshot · scored 0–100 per category · covers Google Search & AI-answer-engine best practices
Your agent reads the audit like a teammate
Everything the audit produces is queryable over MCP — findings, screenshots, diffs, and quick wins.
What broke since the last deploy?
compare_auditsget_page_issuesCompared the last two audits: 3 new issues, 11 fixed, score +4. The new ones are all missing canonicals on /blog templates — one-line fix, want the diff?
Tools your agent gets
start_crawlget_crawl_summaryget_quick_winsget_page_reportcompare_auditsOne-call workflow recipes
- Quick Wins to Spreadsheetrun
- AI SEO Page Reviewrun
Or just type /seo-audit — one of 8 packaged slash commands the Spider ships for Claude Code.
The audit is where the OS starts
Run your first real-browser audit today
Download the Spider, crawl up to 10,000 pages on Spider Lite — unlimited on Professional — and see what your HTML-only crawler has been missing.
From $14/mo · 7 days free · No card required
Explore the full Digispot AI SEO SpiderCommon questions
How is this different from Screaming Frog or Sitebulb?
Three ways. Rendering: every page runs its JavaScript in a real Chromium browser across three devices, so you audit what Google indexes, not raw HTML. Prioritization: connected GSC + GA4 data ranks every issue by traffic at risk, replacing the flat issue list. Action: an MCP server lets your AI agent read findings and fix them — no legacy crawler can do that. Price helps too: $169/yr vs $279/yr, with no per-crawl credits.
How many pages can I crawl, and what does a crawl cost?
Crawls are always $0 — there are no credits and no metering, because crawling runs on your machine. The free Scout tier crawls up to 100 pages per crawl (mobile viewport). Spider Lite covers 10,000-page crawls across all three devices, and Professional removes the page limit entirely.
What does 'evidence-backed' actually mean?
Every page is screenshotted as rendered, per device, during the crawl. When the audit flags a layout shift, a hidden H1, or a mobile-parity gap, you (or your client) see the actual rendered page next to the finding — not a rule name you have to take on faith.
Does it audit for AI search engines too?
Yes — it's a first-class check category, not an add-on. The audit validates llms.txt (weighted into your site score), checks whether robots.txt blocks AI crawlers like ChatGPT or Perplexity, flags question content missing FAQ schema, and simulates how LLM bots see each page versus Googlebot.