Audit any website
from your Mac
Crawl, SEO, HTML validation
and full recon in one app
What you'll love
Crawl any site
Point it at a URL and WebMaster+ crawls the whole site — respecting robots.txt, following redirects and mapping every page by depth, status and response time.
SEO audit
18 built-in rules flag missing meta descriptions, alt text, canonical links, Open Graph and Twitter cards, viewport tags and more — grouped by severity so you fix what matters first.
HTML validation
Every crawled page is checked against native rules plus libtidy diagnostics, so malformed markup surfaces before your visitors — or Google — ever see it.
Full recon
One click pulls WHOIS, DNS records, the TLS chain, security headers, the tech stack and subdomains — the whole picture of a domain.
Snapshots over time
Every scan is saved as a timestamped snapshot, so you can revisit any past crawl and watch a site's health trend as you ship fixes.
Export everything
Export a snapshot to sitemap.xml, per-page and per-issue CSVs and a shareable HTML summary — ready for reports, clients or your own pipeline.
App screenshots
In 3 simple steps
Add a site
Paste any URL and WebMaster+ crawls it end-to-end, collecting every page along with its status, depth and load time.
Review the findings
Jump between Dashboard, Crawler, SEO, Validation and Recon tabs to see a health score, broken links, SEO issues, invalid markup and full domain intel at a glance.
Fix, re-scan, export
Ship your fixes, re-scan to compare against past snapshots, then export the results to CSV, HTML or a sitemap whenever you need to share them.
Works on macOS 14.6+.
Compatible with M1/M2/M3/M4 and the latest macOS Tahoe.
Free updates up to the next major version.
Learn more →
