Same site-wide technical SEO crawl and real PageSpeed metrics. No desktop install, no annual licence, no subscription. Start free, then pay $9-49 one-time only when you need more.
The same audit engine we run across 10+ of our own web products.
An honest, side-by-side look. Different tools win at different jobs - here's where each one fits.
| Kalenux SEO Audit | Screaming Frog | Ahrefs / Semrush | |
|---|---|---|---|
| Price | $9-49 one-time | Free to 500 URLs, then ~£199/yr | $100-250+ / month |
| Billing model | One-time credits, never expire | Annual licence | Monthly subscription |
| Site-wide technical crawl | Yes | Yes | Yes |
| 80+ technical checks | Yes | Yes | Yes |
| Real PageSpeed / Core Web Vitals | Yes | Via integration | Yes |
| Setup | Web app, nothing to install | Desktop app + RAM for big sites | Web app |
| Health tracking run-over-run | Yes | Manual | Yes |
| CSV export | Yes | Yes | Yes |
| Keyword research & rank tracking | No (by design) | No | Yes |
| Backlink index | No | No | Yes |
We're a focused technical-audit tool, not a keyword suite. If you want backlinks and keyword research, keep your Ahrefs. If you want fast, cheap, site-wide technical audits you can run on every client - that's us.
You need technical SEO + PageSpeed audits across whole sites, cheaply and often - especially across many client sites - without a monthly bill or a desktop crawler.
You want a deep desktop crawler with very granular configuration and don't mind the annual licence and local RAM for very large sites.
Your core work is keyword research, rank tracking and backlink analysis - the things a broad suite does that a focused audit tool deliberately doesn't.
If you audit client sites, the difference compounds fast.
$129/mo × 12 = $1,548 a year, every year, whether you run 2 audits or 200.
$49 one-time = ~500 small-site audits. Credits never expire. Buy again only when you run out.
Run a full technical audit on every client at onboarding, then re-audit monthly to show progress - for the price of one month of a suite.
Kalenux SEO Audit runs the same kind of site-wide technical crawl - broken links, redirects, canonicals, hreflang, structured data, sitemaps - plus real PageSpeed, from a web dashboard with nothing to install. Free to start; credit packs are $9-49 one-time with no subscription, versus Screaming Frog's 500-URL free cap and then a yearly licence.
Those are broad keyword-and-backlink suites at $100-250+/month. If you mainly need technical site-health auditing, Kalenux covers it for $9-49 one-time. It is not a keyword-research suite - it is a focused technical audit tool.
No, and we won't pretend it does. Those suites are stronger for keyword research, rank tracking and backlinks. Kalenux is focused on technical SEO and PageSpeed across your whole site. Many agencies use Kalenux for fast, cheap technical audits and keep a keyword suite for research.
Yes. Credits are shared across every site in your account and never expire, so a $49 Pro pack covers around 500 small-site audits. Verify each client domain once, then re-run and track health over time per site.
No credit card. See your technical SEO health in minutes, then decide.
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