# Changelog of Website Technology & Tech Stack Detector: BuiltWith Alternative (`lindenwerk/tech-stack-detector`) Actor

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

## Changelog

### README: cross-links and examples, no code or price change (2026-10-08, build 0.1.5)

- Product name in the README now matches the Store title ("Website Technology & Tech Stack Detector: BuiltWith Alternative").
- New Examples section linking the published example task "Detect the tech stack of competitor websites".
- "Other Lindenwerk Data Actors" lists all six sibling Actors by their current Store titles and Store URLs.
- No change to code, input schema, pricing, events, defaults or output.

All notable changes to this Actor are listed here.

### Listing quality update (2026-10-06, before the first public release)

- README: starts with an H2 "What is ...?" (Apify Store shows the Actor name as the page H1), new step-by-step
  "How to ..." section (first run, own profile, schedule, integrations, API) and a list of the other Lindenwerk Data Actors.
- Input form: fields grouped into sections (Filters, Change monitoring, Limits and performance), form title "Tech Stack Detector" and a "Quickest try" hint in the form description.
- No change to the code, prices, events, output fields or defaults.

### Listing update (2026-10-06, before the first public release)

- README: the first three lines now state what the Actor does, the price per site and that no login or third-party
  API key is needed.
- New section "Use it from AI agents (MCP)": how to call the Actor through the Apify MCP server (mcp.apify.com), a
  single-domain input (`examples/input-single-domain-agent.json`), a real compact result row and the cost of one call.
- FAQ: comparison with Wappalyzer and BuiltWith, accuracy limits, blocked sites, GDPR, cost of a single lookup.
- No change to the code, input or output.

### Launch pricing (2026-10-06, before the first public release)

- `site-analyzed`: USD 0.004 → USD 0.01 per website.
- `partial-result`: USD 0.001 → USD 0.002.
- Rows with no detection stay free. The Actor start stays at the platform minimum (USD 0.00005).
- The earlier prices were never charged to anyone: the Actor was not public yet.

### 0.1 (2026-10-05)

- First release.
- Original fingerprint database: about 370 technologies in 54 categories, with a focus on DACH/EU. It covers CMS,
  shop systems, consent managers, analytics, CDN, frameworks, payments and chat.
- DNS layer: MX (email provider), SPF (sending services), DMARC policy, NS, the www CNAME, and TXT verification
  records (SaaS tools; token values are never output).
- GDPR/DSGVO signals and a security-header score.
- Monitor mode (`monitorKey`, `onlyChanged`) reports technologies added or removed since the previous run.
- Pay per event:
  - `site-analyzed`: USD 0.004 (draft price, replaced before launch; see 2026-10-06).
  - `partial-result`: USD 0.001 (draft price) for blocked sites with DNS or header results.
  - Rows with no detection are free.
  - The run stops cleanly at the maximum charge per run.
- robots.txt is read first (RFC 9309), there is one page request per site, there's an SSRF guard, and it runs with
  no proxies and no login.