Lighthouse finds the issues. AuditZap writes the fix.
Lighthouse is Google's free open-source tool built into Chrome DevTools. AuditZap adds AI fix instructions, multi-page crawling, and monitoring.
Improve Largest Contentful Paint
Ensure the largest contentful element loads quickly. Consider reducing server response time, removing render-blocking resources, and optimising images.
You now know what's wrong. Diagnosing the theme, plugin, or build step behind it - and the actual fix - is on you.
Convert your hero image and prioritise it
Your hero image (hero-banner.jpg, 1.8 MB) is the LCP element. Convert it to WebP, resize to 1200px wide, and add fetchpriority="high". Move the Google Fonts link to a preload tag.
Where each tool focuses
| Capability | AAuditZap | LHGoogle Lighthouse |
|---|---|---|
| AI Visibility audit (AEO/GEO) | 9 checks + AI Visibility score | No |
| AI fix instructions | Yes | No |
| Revenue impact scoring | Yes | No |
| Multi-page crawl (up to 50 pages) | Yes | No |
| Automatic re-audits | Yes | No |
| PDF reports | Yes | No |
| SEO checks (broken links, OG tags, structured data) | Yes | No |
| Monitoring over time | Yes | No |
| Core Web Vitals | Yes | Yes |
| Meta tag checks | Yes | Yes |
| Mobile-friendliness | Yes | Yes |
| Free and unlimited | No | Yes |
| Built into Chrome | No | Yes |
| Accessibility audit | No | Yes |
| PWA audit | No | Yes |
| Best practices audit | No | Yes |
| Performance profiling | No | Yes |
| No signup needed | No | Yes |
Which one should you pick?
AChoose AuditZap
If you need site-wide auditing across multiple pages, AI-powered fix instructions ranked by estimated revenue impact, client-ready PDF reports, ongoing monitoring, and SEO-focused checks that Lighthouse doesn't cover - like broken links, OG tags, and structured data validation.
LHChoose Google Lighthouse
If you need a quick single-page performance check, accessibility auditing, or PWA validation. It's free, developer-focused, built right into Chrome, and works one page at a time with no signup needed.
See the fix list for your site.
Run a free audit against all 40 checks. No credit card, results in under 2 minutes.
Frequently asked questions
Is AuditZap a good Google Lighthouse alternative?
It is if you want site-wide auditing that writes the fix, rather than a one-page developer report. AuditZap crawls up to 50 pages, adds SEO checks Lighthouse skips, and returns an AI fix per issue. Try the free broken link checker.
Is Lighthouse free?
Yes. Lighthouse is free, open source and built into Chrome DevTools, with no signup and no page limit. It audits one page at a time and is aimed at developers.
What does AuditZap check that Lighthouse does not?
Multi-page crawling, broken links, Open Graph tags, structured data, redirect chains and 9 AI-visibility checks, all with a prioritised fix list. Lighthouse covers accessibility, PWA and best-practices audits that AuditZap does not. See the free structured data checker and the Core Web Vitals guide.
Does AuditZap tell me how to fix each issue?
Yes. Lighthouse explains what is wrong; AuditZap adds a plain-English, platform-aware fix and an estimated revenue impact so you know what to do first.
Does AuditZap check AI search visibility?
Yes. AuditZap runs 9 AI-visibility checks covering llms.txt, AI crawler access and citation schema, which Lighthouse does not. Run the free AI visibility checker.