Foglift
All Comparisons
Foglift vs Sitechecker
Both tools audit websites for SEO issues — but Foglift is free forever with GEO analysis, 29 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 |
| GEO / AI search analysis | ✓ Built-in GEO score | ✕ Not available |
| AI crawler detection | ✓ GPTBot, ClaudeBot, etc. | ✕ Not checked |
| Standalone tools | 29 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 | 42+ SEO + GEO 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 scans — no credit card, no signup, 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.
GEO Analysis — The Key Differentiator
Sitechecker focuses on traditional SEO — crawling, rank tracking, and backlinks. It doesn't analyze whether your site is optimized for AI search engines like ChatGPT, Perplexity, or Google AI Overviews. Foglift includes a full GEO (Generative Engine Optimization) score that checks AI crawler access, structured data depth, FAQ detection, entity markup, and citation-friendly formatting. As AI search rapidly grows, this is becoming essential for maintaining visibility.
Standalone Tools
Foglift offers 26 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 website audits without signing up
- ✓Need GEO / AI search optimization 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 + GEO analysis of any website in 30 seconds. See why thousands of developers choose Foglift over $49/month tools.
Scan Your Website FreeFrequently Asked Questions
Is Foglift really free?
Yes. Foglift offers unlimited free full scans, 29 standalone tools, and a public API — all without signing up or entering a credit card. Paid plans ($49-$299/mo) are available for monitoring and agency features.
Does Foglift check the same things as Sitechecker?
Foglift covers SEO, performance, security, accessibility, and GEO analysis. Sitechecker also checks SEO and performance, plus it includes rank tracking and backlink monitoring. Foglift adds GEO/AI search analysis that Sitechecker doesn't offer.
What is GEO analysis and why doesn't Sitechecker have it?
GEO (Generative Engine Optimization) checks if your site is optimized for AI search engines like ChatGPT, Perplexity, and Google AI Overviews. It's a new category that most traditional SEO tools haven't added yet. Foglift was built with GEO as a core feature.
How does Foglift's free scan compare to $49/month?
Foglift's free scan gives you a full report with all issues. Sitechecker's cheapest plan is $49/month ($588/year). Even Foglift Launch at $49/month matches Sitechecker's cheapest plan but includes GEO analysis.
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 better data quality.
Frequently asked questions
What is the main difference between Foglift and Sitechecker?
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Sitechecker bundles website auditing, rank tracking, and backlink monitoring into one platform. Foglift adds AI search readiness scoring and GEO analysis on top of SEO auditing, with free unlimited scans and developer tools.
Is Foglift more affordable than Sitechecker?
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Foglift offers free unlimited Website Audits with no credit card required, and paid monitoring plans start at $49/mo. Sitechecker starts at $49/month. Foglift includes SEO analysis, AI Readiness scoring, API, CLI, and MCP access on all tiers.
Does Sitechecker offer a free plan?
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No, Sitechecker does not offer a free plan — it starts at $49/month. Foglift provides free unlimited Website Audits with no credit card and no trial expiration, so you can evaluate your site's SEO and AI Readiness scores before upgrading.
Which is better for SEO and AI search optimization: Foglift or Sitechecker?
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Foglift combines traditional SEO auditing with AI search readiness scoring (GEO) in a single tool — something most competitors, including Sitechecker, do not offer at this price point. If you need to understand how AI search engines like ChatGPT, Perplexity, and Gemini see your website, Foglift is purpose-built for that.
When should I choose Sitechecker over Foglift?
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Consider Sitechecker if you need: keyword rank tracking built into the same tool, backlink monitoring alongside site audits, scheduled site crawls with change detection. Sitechecker is a strong choice for those specific use cases. Foglift is the better fit if you want free unlimited scans, combined SEO + GEO analysis, or developer tools (API, CLI, MCP).
How we compare
This comparison evaluates both tools across features, pricing, and AI search optimization capabilities. Our methodology draws on peer-reviewed research into what drives AI engine citations:
- Aggarwal et al., “How Search Engines Integrate AI Overviews,” KDD 2024 — found that structured data and entity clarity improve AI answer extraction rates.
- SE Ranking study of 129,000 domains (2025) — identified referring domains and brand web mentions as the strongest predictors of AI citations.
- Chatoptic correlation study (2025) — demonstrated only a 0.034 correlation between Google rank and ChatGPT citation, confirming AI visibility is an independent channel from traditional SEO.
- Zyppy freshness analysis (2025) — 71% of ChatGPT citations come from 2023–2025 content; pages updated within 30 days see a 3.2× citation lift.
Feature and pricing data is verified against each tool's public website. Last updated April 2026.