Foglift vs Sitechecker
Both tools audit websites for SEO issues. Foglift is free forever with AI Readiness scoring, 43+ standalone tools, and no credit card required. Sitechecker starts at $49/month.
| Feature | Foglift | Sitechecker |
|---|---|---|
| Free plan | Unlimited free scans | 3-day free trial only |
| Starting price | Free (full scan) | $49/month |
| AI Readiness scoring | ✓ Built-in AI search extraction checks | ✕ Not available |
| AI crawler detection | ✓ GPTBot, ClaudeBot, etc. | ✕ Not checked |
| Standalone tools | 43+ free tools | Bundled into platform |
| Site audit | ✓ Full site crawl + issues | ✓ Full site crawl + issues |
| Rank tracking | ✕ Not included | ✓ Keyword rank tracking |
| Backlink monitoring | ✕ Not included | ✓ Backlink monitoring |
| On-page SEO checker | ✓ SEO score with A-F grades | ✓ On-page SEO analysis |
| Schema markup check | ✓ JSON-LD, structured data depth | ✓ Basic check |
| Performance check | ✓ Core Web Vitals | ✓ Page speed data |
| Security headers | ✓ 6 headers + grade | ✓ Basic HTTPS check |
| Accessibility check | ✓ 15 WCAG checks | Limited |
| PDF export | ✓ Branded PDF | ✓ PDF reports |
| API access | ✓ Free REST API | ✕ No public API |
| MCP server | ✓ For AI assistants | ✕ Not available |
| Blog / guides | SEO and AI search guides | SEO blog |
| Signup required | No (free tools) | Yes (email + card for trial) |
Detailed Comparison
Pricing
Sitechecker starts at $49/month for its Basic plan, scaling up to $249/month for premium tiers. You get a 3-day free trial, but you need a credit card to start. After the trial, you're locked into a monthly subscription. Foglift offers unlimited free Technical Audits with no credit card, no signup, and no time limit. The free scan shows all issues with AI recommendations. Launch is $49/month for monitoring. Growth is $129/month for advanced analysis. That's free vs $588/year with Sitechecker.
AI Readiness: The Key Differentiator
Sitechecker focuses on traditional SEO: crawling, rank tracking, and backlinks. It doesn't analyze whether your site is easy for AI search engines like ChatGPT, Perplexity, or Google AI Overviews to crawl, understand, and cite. Foglift includes an AI Readiness score that checks AI crawler access, structured data depth, FAQ detection, entity markup, and citation-friendly formatting.
Standalone Tools
Foglift offers 43+ free standalone tools (SSL checker, DNS lookup, WHOIS, accessibility checker, contrast checker, page speed, robots.txt tester, website carbon calculator, and more) that work independently without creating an account. Sitechecker bundles everything into a single platform that requires signup and a subscription. If you need quick checks on specific aspects of a website, Foglift's individual tools are faster and free.
Where Sitechecker Wins
Sitechecker includes rank tracking and backlink monitoring that Foglift doesn't offer. If you need to track keyword positions over time or monitor your backlink profile, Sitechecker bundles these into one platform. It also provides scheduled site crawls with change detection. However, for rank tracking and backlinks specifically, dedicated tools like Ahrefs or Semrush provide significantly deeper data at similar price points.
Choose Foglift If You...
- ✓Want free, unlimited Technical Audits without signing up
- ✓Need AI Readiness and AI search extraction insights
- ✓Use individual tools (SSL, DNS, accessibility, carbon, etc.)
- ✓Want API access or MCP integration for AI assistants
- ✓Prefer a free full scan before committing to subscriptions
Choose Sitechecker If You...
- •Need keyword rank tracking built into the same tool
- •Want backlink monitoring alongside site audits
- •Need scheduled site crawls with change detection
- •Prefer an all-in-one SEO platform over individual tools
- •Don't need AI search optimization analysis
Try Foglift Free. No Signup Required.
Get a full SEO and AI Readiness analysis of any website in 30 seconds. See why thousands of developers choose Foglift over $49/month tools.
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Frequently Asked Questions
Is Foglift really free?
Yes. Foglift offers unlimited free Technical Audits, 43+ standalone tools, and a public API without requiring signup or a credit card. Paid plans ($49-$299/mo) add broader monitoring coverage and faster cadence.
Does Foglift check the same things as Sitechecker?
Foglift covers SEO, performance, security, accessibility, and AI Readiness. Sitechecker also checks SEO and performance, plus it includes rank tracking and backlink monitoring. Foglift adds AI search extraction checks that Sitechecker doesn't offer.
What is AI Readiness and why doesn't Sitechecker have it?
AI Readiness checks whether your site is easy for AI search engines like ChatGPT, Perplexity, and Google AI Overviews to crawl, understand, and cite. It is a newer category that most traditional SEO tools have not added yet.
How does Foglift's free scan compare to $49/month?
Foglift's free Technical Audit gives you a full report with all issues. Sitechecker's cheapest plan is $49/month ($588/year). Foglift Launch is also $49/month and adds paid AI Visibility monitoring coverage beyond the free weekly Google AI Overview checks.
Can I migrate from Sitechecker to Foglift?
Yes. Just start scanning your sites on Foglift. Your scan history, monitoring data, and reports will build up over time. For rank tracking and backlinks, consider pairing Foglift with a dedicated tool like Ahrefs or Semrush for deeper data.
When should I choose Sitechecker over Foglift?
Choose Sitechecker if you primarily need rank tracking and backlink monitoring as core daily workflows, or if you want a single dashboard that combines on-page audits with keyword position tracking. Foglift is the better fit if you want unlimited free Technical Audits with no signup, native AI Readiness scoring, or developer surfaces such as the REST API, CLI, and MCP server.