Broken link checker for JavaScript apps and websites
VeriFalcon is built for the broken-link checks that basic crawlers miss: browser-rendered routes, authenticated navigation, soft 404s, broken resources, API-backed failures, and pages that only break after a real click path.
Results separate broken pages, broken resources, protected routes, JS errors, API failures, scanner errors, and uncrawled pages instead of collapsing everything into one broken-link list.
Key Takeaways
Start here, then expand detailed sections as needed.
What VeriFalcon Actually Shows Today
This page is based on the current product behavior in the live app and REST API, not on future roadmap copy.
Results separate broken pages, broken resources, protected routes, JS errors, API failures, scanner errors, and uncrawled pages instead of collapsing everything into one broken-link list.
The JavaScript crawler follows rendered navigation with Playwright, which makes it useful for routes that look healthy at the HTML layer but fail after hydration or data loading.
The product already exposes PDF and CSV exports, grouped-link results, and issue-specific tabs so engineering, QA, and docs teams can work from the same scan.
What The Product Looks Like
These screenshots are meant to show the real public and product surfaces that back this page.
Screaming Frog vs VeriFalcon: honest fit
This table is deliberately narrow. It avoids pretending VeriFalcon replaces a mature technical SEO suite.
| Question | Screaming Frog | VeriFalcon |
|---|---|---|
| Primary job | Broad technical SEO audits, URL inspection, redirects, metadata, structured data, extraction, and crawl diagnostics. | Application route integrity: broken pages, soft 404s, runtime failures, API failures, auth boundaries, and handoff-ready issue grouping. |
| Best buyer | SEO teams and agencies that need a desktop crawler with deep technical SEO controls. | Developers, QA teams, and technical site owners who need a browser-like route check before release. |
| Current pricing signal | Free up to 500 URLs; paid license listed at GBP 199 per year on Screaming Frog's official pricing pages. | Pilot-stage free scanner and scoped audit positioning; not a full SEO-suite subscription. |
| JavaScript/auth posture | Supports JavaScript rendering and authentication, but the workflow is still rooted in SEO Spider crawl configuration. | JavaScript and authenticated app-route checks are the center of the product workflow. |
| When not to choose it | Not ideal if the team wants a lightweight web app focused only on route-QA handoff. | Not ideal if the team needs the breadth, exports, integrations, and maturity of a full technical SEO crawler. |
Who this page is really for
Most broken-link checkers are fine when the site is a simple public brochure site and the failure is just a dead href. They become much less helpful when the site behaves like a product: routes render in the browser, pages depend on API calls, important navigation sits behind login, or a route returns 200 while the experience is still broken.
VeriFalcon is for teams that need the answer in operational terms: which pages broke, which resources failed, which routes were protected or blocked, which failures came from JavaScript or APIs, and which discovered pages were never verified.
What makes this different from a generic link scanVeriFalcon focuses on rendered behavior, issue classification, and crawl-coverage transparency.
- it can inspect rendered JavaScript routes instead of only static HTML
- it keeps broken pages separate from broken resources so teams can prioritize better
- it classifies soft 404s instead of letting them hide inside 200 responses
- it treats protected, blocked, and scanner-error outcomes as different operational states
- it can surface grouped links and uncrawled pages when the navigation graph is incomplete
What a useful broken-link report should help you do
A strong report should help a team fix the problem, not just prove that a bad URL exists. That means showing the failure class, the route context, and enough detail for engineering, QA, or content owners to act without re-running the entire investigation manually.
VeriFalcon keeps the focus on route integrity and issue categorization instead of presenting itself as a generic crawler that happens to find a few dead links.
FAQ
Is this only for SEO teams?
No. The strongest fit is product engineering, QA, and technical site owners who want to find broken routes and runtime failures before release.
Does it work on static sites too?
Yes. VeriFalcon includes a lightweight static crawler for docs, blogs, and other non-JavaScript sites.
Related Pages
Continue with pages that map to adjacent use cases and comparisons.
See how the browser-driven crawler works on React, Next.js, and SPA routes.
Use the agency-facing audit offer for redesigns, CMS moves, and launch handoff.
Understand how VeriFalcon handles login flows and protected pages.
Learn how to catch failures that only appear after client navigation.
Facts Checked For This Page
External facts should stay current before this comparison is promoted.