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StackDetect

Free plan APIExtensionWeb

What StackDetect is

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 nothing 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 suits

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 it does well

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.

Limits

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.

Plans

Plan	Billed and limits	Price
Free	50 technology lookups per month · free sample lead lists	Free

As stackdetect.io lists them, read 30 Sept 2026. The maker's own page has the final word.

Getting started

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

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.

Questions

Is there a free plan?

Yes. The Free plan costs nothing 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.

Facts from StackDetect's own pages

API access: API keys are available on Business and Enterprise plans, and a single technology lookup uses one credit. · stackdetect.io, 30 Sept 2026
Billing limit: Included API credits expire 60 days after issuance, while purchased top-up credits do not expire. · stackdetect.io, 30 Sept 2026
Collection: Data is collected through the browser extension and a proprietary web crawler from publicly accessible pages; private or authenticated content is not accessed. · stackdetect.io, 30 Sept 2026
Data use limit: Reselling or embedding StackDetect data requires an Enterprise plan with sublicensing rights; standard plans are for internal use only. · stackdetect.io, 30 Sept 2026
Detection: It detects CMS platforms, WordPress plugins, ecommerce apps, analytics tools, advertising pixels, JavaScript frameworks, CDNs, payment gateways, CRMs, and more. · stackdetect.io, 30 Sept 2026
Detection limits: Detection depends on public fingerprints and varies by technology; records include confidence scores, while less-visited sites may have data weeks old. · stackdetect.io, 30 Sept 2026
Exports and filtering: Business and Enterprise plans support filtering by multiple technologies simultaneously, and paid plans include bulk exports and advanced filters. · stackdetect.io, 30 Sept 2026
Extension privacy: The browser extension collects visited page hostnames and detected technologies, not page content, form data, passwords, or personally identifiable information. · stackdetect.io, 30 Sept 2026
Integrations: Business and Enterprise plans offer CRM enrichment, and the StackDetect API can enrich CRM records with technographic data. · stackdetect.io, 30 Sept 2026
Lead lists: Lead lists are curated lists of websites filtered by the technologies they use, for outreach, enrichment, or analysis. · stackdetect.io, 30 Sept 2026
Product: StackDetect detects and catalogs website technologies, then lets users search, filter, and export prospect lists based on the tools websites use. · stackdetect.io, 30 Sept 2026
Record fields: Each lead-list record includes a hostname, detected technologies, categories, detection confidence, HTTPS status, and last-seen date. · stackdetect.io, 30 Sept 2026
Refunds: First-time paid-plan purchases have a 7-day money-back guarantee; renewals and requests after seven days are not refundable. · stackdetect.io, 30 Sept 2026
Support: StackDetect says its support team typically replies within a couple of hours during business days. · stackdetect.io, 30 Sept 2026

Where StackDetect stands on Freedom251

Technographic Data Software#10 of 31