# Changelog of Website Tech Stack Detector – Technology Lookup (`nordic-data/website-tech-stack-detector`) Actor

- **URL**: https://apify.com/nordic-data/website-tech-stack-detector/changelog.md
- **Full Actor documentation**: https://apify.com/nordic-data/website-tech-stack-detector.md

## Changelog

### 0.1 (2026-10-29)

- Fast literal prefilter (Aho-Corasick) for 4x faster matching; honest bot user agent; 429 back-off; per-site 60 s deadline.
- First release: HTTP-only (no browser) technology detection for any list of domains or URLs using 7,600+ open-source fingerprints (webappanalyzer, GPL-3.0).
- Matches headers, cookies, meta tags, script URLs, inline scripts, HTML, DOM selectors and URL; resolves implies/requires/excludes and versions.
- Optional DNS lookup (MX/TXT/NS over HTTPS): email provider, email-sending services, verified SaaS tools and DNS hosting.
- Optional social profile links and mailto: emails from the homepage.
- Lead-gen filter: only websites using the listed technologies or categories are returned and charged.
- Pay per website: $0.0019. Unreachable/blocked sites and filtered-out websites are free. Stops at your max charge limit.