PerfDelta vs CrawlCheck

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PerfDelta compared with CrawlCheck
Detail	PerfDelta	CrawlCheck
What it does	Free website speed test measuring multiple pages with Core Web Vitals, lab metrics, competitor benchmarks and AI recommendations	See what ChatGPT, Claude, Perplexity and Google actually get from your site
Stage	Not given	Startup
Founded	Not given	2026
Based in	DE	US
Pricing model	Freemium	Freemium
Pricing	Free: test up to 3 pages with manual measurements only. Solo: €23/month or €230/year (25 monitored URLs, daily or weekly monitoring, 600 tests/month). Agency: €59/month or €590/year (150 monitored URLs, monitoring every 6 hours, 4,000 tests/month). Scale: €119/month or €1,190/year (500 monitored URL	Free scans with no account. One site: fix service $100 once with 30 days included, then Watch at $29 per month for up to 3 sites. Multiple sites: Developer API at $99 per month for 2,000 scans, Growth at $499 per month for 20,000 scans, or Agency at $249 per month for 40 domains. Add-ons: Evidence $
Key features	Tests multiple pages automatically from sitemap Competitor benchmark comparison with up to 4 competitors Shows Core Web Vitals from real Chrome users PageSpeed history tracking over time Performance budgets with email alerts Shareable reports with 365-day links REST API and MCP access for AI agents	Free A–F audit with no signup required Tests 13 crawler identities including GPTBot, ClaudeBot, PerplexityBot, and Googlebot Monitors sites twice daily with regression alerts Signed, offline-verifiable answers using Ed25519 keys Checks machine files: robots.txt, llms.txt, agents.md, and structured data Implementation service to fix crawler access issues for $100 Published rulebook with 106 publicly accessible rules API for agencies and tools measuring multiple sites Browser extension showing how crawlers see your homepage Blockchain-anchored daily seal of measurements via Bitcoin
What makes it different	Tests several pages simultaneously instead of one URL at a time Combines field data from real users with lab metrics in one report Built-in competitor benchmarking against up to 4 domains Industry-specific benchmarks showing what is normal in each sector No sign-up required for free testing on any website	Signed, offline-verifiable results anyone can check without trusting the company Tests what AI models actually receive from your site, not just SEO rankings Transparent, published rules that never change based on payment tier Built for the agentic web as a verification layer for agents to act autonomously
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 no change since last check	28 −1 (down) since last check
Trust Flow (Majestic)	0	9
Citation Flow (Majestic)	15	31
Referring domains (Majestic)	2	46

6 details filled in for both companies.

More alternatives to PerfDelta More alternatives to CrawlCheck