Freedom report

Two barsScore 6.4

  • Free tierA free tier is on its own pricing page
  • Open codeNo open-source code on record
  • Runs widely1 of 6 device platforms
  • DocumentedPlans, terms and facts published

StackDetect detects technologies used by websites and organizes them into searchable prospect lists. Users can search, filter and export websites according to their technology stack for outreach, enrichment or analysis. Detection covers CMS platforms, WordPress plugins, ecommerce apps, analytics tools, advertising pixels, JavaScript frameworks, CDNs, payment gateways, CRMs and more. Each record includes a hostname, detected technologies and categories, a confidence score, HTTPS status and last-seen date. Data is collected from publicly accessible pages through a browser extension and a proprietary crawler; private or authenticated content is not accessed. The extension collects visited hostnames and detected technologies, not page content, form data, passwords or personally identifiable information. Detection depends on public fingerprints and varies by technology, and data on less-visited sites may be weeks old. The free plan costs 0.00 USD per free and includes 50 technology lookups per month plus sample lead lists. Paid plans add bulk exports and advanced filters; Business and Enterprise add multi-technology filtering, CRM enrichment and API keys. Each API technology lookup uses one credit.

Who it is for

StackDetect may suit people building prospect lists or enriching CRM records with website technology data. Its usefulness depends on public fingerprints and the freshness of records for less-visited sites.

What is good

  • Free plan includes 50 technology lookups monthly.
  • Lead records include confidence and last-seen information.
  • Collects data from publicly accessible pages.
  • Extension does not collect page content or passwords.
  • Business and Enterprise plans offer CRM enrichment.

What to know first

  • Detection varies by technology and public fingerprints.
  • Less-visited site records may be weeks old.
  • Included API credits expire after 60 days.
  • Data resale or embedding requires Enterprise sublicensing rights.

Verdict

StackDetect turns detected website technologies into searchable and exportable prospect data, with API and CRM features on higher plans. Detection confidence and record age matter, and included API credits have a 60-day expiry.

Get started with StackDetect

  1. Open https://www.stackdetect.io/ in a browser.
  2. Use the browser extension or web platform to work with website technology data.
  3. Search or filter lead lists by the technologies websites use.
  4. Export lists using a paid plan, or use Business or Enterprise for multi-technology filtering and CRM enrichment.
  5. Use an API key on Business or Enterprise; each technology lookup uses one credit.

What the free plan stops at

The Free plan includes 50 technology lookups per month and sample lead lists. Included API credits on paid plans expire 60 days after issuance; purchased top-up credits do not expire.

Questions about StackDetect

Is there a free plan?

Yes. The Free plan costs 0.00 USD per free and includes 50 technology lookups per month and sample lead lists.

Which platforms does StackDetect support?

Its listed platforms are API, browser extension, and web.

Can I use StackDetect data to enrich a CRM?

Business and Enterprise plans offer CRM enrichment, and the API can add technographic data to CRM records.

Which plans include API keys?

API keys are available on Business and Enterprise plans. A single technology lookup uses one credit.

Can I resell or embed StackDetect data?

Reselling or embedding data requires an Enterprise plan with sublicensing rights. Standard plans are for internal use only.

How current and complete is detection?

Detection depends on public fingerprints and varies by technology. Records include confidence scores, and data for less-visited sites may be weeks old.

StackDetect plans and pricing

All plans
Free Free 50 technology lookups per month · free sample lead lists stackdetect.io · 30 Sept 2026

Compared on technographic data software

Free plan
Yes
Technology detection
Yes
Company profiles
Yes
Historical technology data
Yes
Technology intent signals
Yes
API access
Yes
Export formats
both

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