Websites using Immutable.js
Find prospects by their observed technology stack. Review Immutable.js detections, estimated country, and observation dates before building a list for your services.
Public preview capped at 30 results. Qualifying public cohort: 14 domains.
Full database filters and lead-list exports: Pro, €49/month (€490/year). Test your own CSV free with 25 monthly credits.
Open databaseResearch websites detected using Immutable.js
Use these Immutable.js detections as a starting point for stack research or prospect qualification. Open a domain report to inspect related technologies and observation dates before saving a shortlist.
Combine included and excluded technologies in the database, review estimated country, and verify the signals that matter to your work. A detection does not establish buying intent or a verified company location.
Narrow your shortlist
Country previews require a geography score of at least 70 and 50 qualifying domains. Geography is estimated from website signals, not a verified company address.
See how CSV enrichment works →| Domain | Estimated country | Observed on | Rule score |
|---|---|---|---|
| myheritage.pl | — | Sep 12, 2026 | 100% |
| myheritage.fi | — | Sep 12, 2026 | 100% |
| myheritage.nl | NL 95% | Sep 12, 2026 | 100% |
| amp.pt | — | Sep 12, 2026 | 100% |
| myheritage.fr | FR 95% | Sep 12, 2026 | 100% |
| myheritage.no | NO 75% | Sep 12, 2026 | 100% |
| myheritage.com.br | — | Sep 12, 2026 | 100% |
| myheritage.se | SE 75% | Sep 12, 2026 | 100% |
| myheritage.dk | DK 75% | Sep 11, 2026 | 100% |
| myheritage.de | DE 95% | Sep 11, 2026 | 100% |
How to read this preview
This technology cohort includes domains with a successful stored scan and a detailed observation of this technology scoring at least 70. Country previews additionally require at least five meaningful technologies and a geography score of at least 70. Rows show when Immutable.js was observed; a dated detection is not a live verification. Rule scores summarize fingerprint evidence and are not measured accuracy percentages. The public preview and paid database use different eligibility rules.
Open a website report, check the observation dates and relevant signals, then save matching domains in the database. Pro includes CSV lead-list exports and 500 monthly enrichment credits; Business includes 5,000. Enrichment does not provide contact details or buying intent.