Look up any domain against Common Crawl's Web Graph — the dataset that feeds AI models. Compare domains side-by-side, batch check 1,000, and export results. One portable EXE, zero dependencies.
AI models are reshaping how people find information. ChatGPT, Claude, Gemini, and others are trained on web crawl data — and the most prominent source is Common Crawl's Web Graph. If your domain ranks high in that graph, AI models are more likely to reference your content.
But until now, there's been no simple way to check where you stand. Raw Common Crawl data is 3+ GB of compressed files with 120 million domains. Tom's AI Rank Checker turns that into a one-click lookup.
Unzip and run. On first launch, choose a database tier to download (from 16 MB to 412 MB).
Type any domain in the Lookup tab. Instantly see its rank, AI Visibility Score, tier classification, and detailed metrics.
Add domains to Compare view for side-by-side analysis, or paste up to 1,000 into Batch view. Export everything as CSV.
AI Visibility Score gauge, tier badge, connectivity rank, authority rank, comparison, subdomain count, and percentile.
Up to 10 domains side-by-side. Sortable columns, gap insights showing the best domain, paste multiple at once.
Paste up to 1,000 domains for bulk checking. Progress bar with cancel, tier distribution summary, drag-drop .txt files.
Export results from Compare and Batch views. UTF-8 encoded, opens cleanly in Excel, Google Sheets, and any spreadsheet tool.
After downloading the database, everything runs locally. No internet needed, no data sent anywhere, no tracking.
Single portable EXE. No .NET, no Java, no installer, no admin rights. Runs from any folder including USB drives.
The online version queries the full 120 million domain database directly from the server. Check up to 5 domains at a time, completely free. Want more power? The desktop app gives you Compare, Batch, CSV export, and unlimited lookups.
The app downloads a rank database on first run. You can switch tiers at any time from Settings.
| Tier | Domains | Download | Best For |
|---|---|---|---|
| Top 1M | 1,000,000 | ~16 MB | Quick checks, fast download |
| Top 5M RECOMMENDED | 5,000,000 | ~86 MB | Best balance of coverage and speed |
| Top 10M | 10,000,000 | ~172 MB | Comprehensive analysis |
| Top 25M | 25,000,000 | ~412 MB | Maximum coverage |
Unzip and run. Database downloaded automatically on first launch. No installer, no admin rights, no account.
Common Crawl is a nonprofit that crawls billions of web pages and publishes the data openly. Their Web Graph maps how domains link to each other across the entire web. AI models like ChatGPT, Claude, and Gemini use this data for training. The graph includes two key metrics: Harmonic Centrality (connectivity) and PageRank (link authority).
No. This uses Common Crawl's independently calculated link authority metric, not Google's old toolbar PageRank (which was retired in 2016). The algorithm is similar in concept — it measures trust based on inbound links — but it's calculated from Common Crawl's own web graph data, not Google's.
No. The score indicates how prominent your domain is in the training data source. AI models use many factors when generating responses. But higher visibility in the web graph means your content is more likely to be part of the training corpus, which improves the odds.
No. The only network connection is the one-time database download from tomdahne.com. After that, all lookups happen locally on your machine. No analytics, no telemetry, no cloud sync.
Common Crawl publishes new web graph data periodically (typically every few months). When a new release is available, you can download an updated database through the app's Settings menu.
If your domain doesn't appear in the database, it may be too new, too small, or not yet crawled by Common Crawl. The web graph only includes domains that appear in their crawl data. Try the online version which searches the full 120 million domain database — your domain may appear in the larger tiers.
The online version checks up to 5 domains against the full 120M database. The desktop app adds Compare view (10 domains side-by-side), Batch view (up to 1,000), CSV export, history, and fully offline operation — no daily limits.
Desktop utilities that work offline, cost once, and respect your data.