Technical SEO Crawler

Faultry vs Screaming Frog

Screaming Frog is built for site-wide technical SEO crawl work across entire sites. Faultry is built for the live-page question founders hit more often: why this URL still feels harder to find, trust, or convert than it should.

CategoryScreaming FrogFaultry
Primary jobCrawler-led technical SEO across site architecture, status codes, canonicals, redirects, hreflang, and more.Live-site audit for discoverability, trust, mobile UX, previews, and runtime blockers on a specific URL.
Site-wide crawl depthFull-site crawling and exports.Not a full-site crawler. It focuses on the live URL you are diagnosing.
Google-side search dataCan integrate external data, but it is not a first-party Google-side search data product.Not a Google data product either. It focuses on the live-page diagnosis after the crawl question.
Live mobile renderingNot the main job.Live Chromium render at 375x667 with overflow and tap-target checks.
Social preview validationUseful tag extraction, but not a human-style preview check.Full OG + Twitter Card validation with tag-based preview simulation.
AI discoverabilityCan help surface crawl issues, but not an end-to-end AI-visibility audit.Crawler access, llms.txt quality (emerging convention), and cloaking checks.
Console / runtime triageOutside the core workflow.Initial page-load findings categorized by type + severity.
Fix outputExports, issue lists, and crawl data you work through manually.Short, stack-aware fixes aimed at the live page you are diagnosing.

When to use Screaming Frog

  • Use Screaming Frog when the task is a true technical SEO crawl: broken links, canonicals, redirect chains, duplicate patterns, hreflang, image issues, or template-level audits across many URLs.
  • It is the better tool when you need exports, filters, and a site-wide crawl model rather than one business-facing report.
  • If your question starts with “how many URLs have this issue?”, Screaming Frog is the right answer.

When Faultry fits better

  • Use Faultry when you need to understand why one important page or homepage still underperforms after it ships.
  • It is stronger when the blocker may sit in live mobile behavior, preview quality, AI discoverability, trust signals, or initial page-load failures that a crawler does not summarize cleanly.
  • Faultry is also easier to hand to a founder or marketer who needs direction without opening a crawl export.

Source-backed reading

Google Search Console

Search Console remains the best first-party Google-side dataset to pair with a crawler or live-page audit.

Questions people ask before switching

Should a founder buy Screaming Frog or use Faultry first?

If the problem is broad technical SEO across many URLs, Screaming Frog earns its place fast. If the problem is that the homepage, launch page, or a key landing page is not pulling its weight, Faultry is usually the faster first read.

Can Faultry replace a crawler?

No. Faultry is intentionally a live-page diagnosis layer, not a replacement for a full-site technical SEO crawler.

Run the live-page check before you buy another stack

Faultry is useful when the practical question is not “which suite has more tabs?” but “what on this page is hurting discoverability, trust, or conversions right now?”

Run a Free Visibility Audit