Wayback Change Monitor — Website History Diff & Alerts

Catch SEO disasters before Google does: watches robots.txt, XML sitemaps and key pages for Disallow: /, noindex, canonical and status changes, sitemap URL drops and errors. Diffs vs last run, Slack/webhook alerts, HTML report.

Lighthouse Batch Audits & Regression Alerts

peerless_columbine/lighthouse-batch-audit-monitor

Audit public pages with Lighthouse13.5.0, export raw and HTML reports, and compare persistent category baselines.

Automated site quality and E-E-A-T audit crawler. Crawls pages to analyze author signals, JSON-LD Schema markup, sitewide trust links, and content depth—generating an instant compliance score and prioritized fix list to protect rankings against Google core updates.

Bulk website history from the Internet Archive's Wayback Machine: when each URL or domain was first and last archived, captures per year, distinct versions and last change, every version with links, or what changed between two dates (title, headings, text, links). Official APIs, no key.

Scrape the Snapchat Ads Gallery: every ad an advertiser runs in the EU and Turkey, with creative, landing page, impressions per country, age targeting and review status.

Pre-flight check for Shopify and WooCommerce product import CSV/XLSX files. Replays ~40 importer rules (Default Title trap, variation linking, duplicate SKUs, prices, image links, Excel mangling, mojibake), auto-fixes safe issues with a change log and splits importer-safe chunks.

Google Keyword Suggestions Scraper

piotrv1001/google-keyword-suggestions-scraper

Turn a seed keyword into hundreds or thousands of Google keyword ideas that contain it, with search volume, CPC, competition, keyword difficulty, search intent, 12-month trend and SERP features. Sorted by volume, any country. No paid SEO tool needed.

Federal Contract Awards Feed (USAspending.gov)

novadata/federal-contract-awards-feed

Who just won federal contracts: new awards by NAICS, PSC, agency, set-aside, state, amount, recipient and keyword from the official USAspending.gov API. Includes award amount, period-of-performance end date and days remaining, with links back to USAspending. No API key.

SSL Certificate Subdomain Finder: CT Log Search

transparent_meteorite/ssl-certificate-subdomain-finder

List the subdomains of any domain from public Certificate Transparency logs. Returns each hostname with first seen, last seen, expiry, issuer, certificate count and a freshness score. No login, no proxy.

Watch any website's sitemap and get one row per change: new pages, removed pages, optional lastmod updates. See competitors' new products, content clusters and landing pages the day they ship. Pay only for changes; quiet sites cost nothing. Keyless, no proxy.