Tom's Site Auditor is a Windows desktop SEO crawler that scans any website for broken links, missing tags, and other technical issues, then produces a prioritized HTML report with plain‑language fix guidance — all running 100% offline with no subscriptions.
What is Tom's Site Auditor?
Tom's Site Auditor is a native Windows application (single portable EXE, ~3 MB) that accepts any website URL and a configurable scan depth, then crawls every discoverable page to detect SEO problems. It outputs a self‑contained HTML report with a health score, a prioritized issue list, and a full page inventory. The tool is built and supported by independent developer Tom Dahne, who also provides bonus PHP scripts (Site Fixer and SEO Dashboard) with a paid license.
Key Features
- 30+ SEO checks in one scan — Catches missing titles, broken internal/external links, missing meta descriptions, redirect chains, absent alt text, duplicate content signals, and more during a single crawl.
- Self‑contained HTML reports — Each audit generates a portable HTML file that opens in any browser, with no special viewer needed. See a sample report.
- 100% offline operation — The entire scan runs locally on your Windows PC; no cloud services, no API keys, no accounts, and no data leaves your machine.
- Deterministic scanning — Repeatable crawl order enables comparable scans over time, so you can spot regressions rather than crawl‑order noise.
- Scan history and comparison — Save every audit locally and compare results across weeks to track whether fixes moved the needle.
- CSV and XML sitemap exports — Export discovered pages and flagged issues as CSV, or generate an XML sitemap from every URL found during the crawl.
- BFS crawler with configurable depth and delay — Built in C++17 using native Win32 and WinHTTP, with NDJSON streaming for crash‑tolerant data storage.
Who is it for?
- Freelancers & agencies — Scan a client’s site, generate a professional HTML report, and send it over — all for a single $29 payment instead of a monthly SaaS fee.
- Site owners — Run a scan to get a plain‑language list of every SEO problem, ranked by priority, with guidance on how to fix each one.
- Developers — Every issue is explainable and verifiable with deterministic scanning, CSV exports, and no black‑box scores.
What can you do with it?
- Audit a client site for an instant deliverable — Paste any URL, scan, and hand over a self‑contained report that includes a health score and fix‑first priority list.
- Track SEO health over time — Use scan history and the optional SEO Dashboard (PHP script included with the full license) to compare scans side by side and detect template‑level issues affecting 60%+ of pages.
- Bulk‑fix common issues — With the Site Fixer script, add missing OpenGraph tags, canonical tags, meta descriptions, and image dimensions, or generate a hub links page for orphan pages — all with automatic backups.
How does it work?
- Enter a URL — Paste any website address. Set your preferred scan depth and options (or use defaults).
- Scan — The crawler discovers every page, checks every link, extracts SEO signals, and logs every issue found.
- Get your report — Open the portable HTML report: health score, prioritized issues, and specific fix guidance for every problem detected.
Pricing
The full license is a one‑time payment of $29 USD with free updates for life. A 7‑day free trial unlocks the complete application with all features, scan modes, and exports — no credit card, no account required. Upgrade by purchasing via PayPal and submitting your machine code; the developer sends your license key and bonus tools (Site Fixer, SEO Dashboard, guides) within 24 hours.
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