Best Website Visitor Identification Software in 2026
Updated
In short: Lusha is ranked #1 of 28 as of 4 October 2026, ahead of Leadfeeder and Nalloo. The best-ranked option with a free plan is Leadfeeder. The lowest first paid tier on this page is Happierleads at $0.10/mo.
When website activity needs to inform sales outreach, visitor identification software can connect activity on tracked domains with account or contact details. Compared on account identification, contact enrichment, and CRM sync, the entries offer different points to assess how visitor information may fit your workflow. Lusha, Leadfeeder, and Nalloo are among the options to examine. Intent signals and sales alerts are also useful fields to compare when considering how activity reaches a sales team. Check tracked-domain coverage, free-plan availability, and paid-from pricing alongside the capabilities you need, especially if enriched details must move into an existing CRM.
28 website visitor identification software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Website Visitor Identification Software, one module each. A lit port is something its maker publishes; 13 of the 25 on this page have a public API.
- 01 Lusha API yesOSS not on recordFREE yesDOCS 7.4$37.45/mo
- 02 Leadfeeder API yesOSS not on recordFREE yesDOCS 7.3€79/mo
- 03 Nalloo API yesOSS not on recordFREE yesDOCS 7.3€75/mo
- 04 RB2B API yesOSS not on recordFREE yesDOCS 7.3$79/mo
- 05 Warmly API yesOSS not on recordFREE yesDOCS 7.3$99/mo
- 06 Factors.ai API yesOSS not on recordFREE not on recordDOCS 6.9$0.50/mo
- 07 Snitcher API yesOSS not on recordFREE not on recordDOCS 6.8$49/mo
- 08 Albacross API yesOSS not on recordFREE not on recordDOCS 6.7
- 09 D&B Hoovers API yesOSS not on recordFREE not on recordDOCS 6.7$44.08/mo
- 10 Happierleads API yesOSS not on recordFREE not on recordDOCS 6.7$0.10/mo
- 11 Lead Forensics API yesOSS not on recordFREE not on recordDOCS 6.7
- 12 Salespanel API yesOSS not on recordFREE not on recordDOCS 6.7$99/mo
- 13 Visual Visitor API yesOSS not on recordFREE not on recordDOCS 6.6
- 14 Leadberry API not on recordOSS not on recordFREE yesDOCS 5.9$24/mo
- 15 Ploy API not on recordOSS not on recordFREE yesDOCS 5.9$50/mo
- 16 OrgSight API not on recordOSS not on recordFREE yesDOCS 5.8Free
- 17 DemandSense API not on recordOSS not on recordFREE not on recordDOCS 5.3$89/mo
- 18 Factors.ai API not on recordOSS not on recordFREE not on recordDOCS 5.3$199/mo
- 19 Leadinfo API not on recordOSS not on recordFREE not on recordDOCS 5.3€69/mo
- 20 SalesViewer API not on recordOSS not on recordFREE not on recordDOCS 5.3€99/mo
- 21 SiteSonar API not on recordOSS not on recordFREE not on recordDOCS 5.3$599/mo
- 22 Whois Visiting API not on recordOSS not on recordFREE not on recordDOCS 5.2$62.10/mo
- 23 Dealfront API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 24 lead.box API not on recordOSS not on recordFREE not on recordDOCS 4.8$111/mo
- 25 LeadLander API not on recordOSS not on recordFREE not on recordDOCS 4.8
Compare all 25 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Tracked domains | Account identification |
|---|---|---|---|---|---|---|---|---|
| 1 | Lusha | 7.4 | Free plan | $37.45/mo | Yes | — | — | — |
| 2 | Leadfeeder | 7.3 | Free plan | €79/mo | Yes | — | — | — |
| 3 | Nalloo | 7.3 | Free plan | €75/mo | Yes | — | — | — |
| 4 | RB2B | 7.3 | Free plan | $79/mo | Yes | 79 /mo | — | — |
| 5 | Warmly | 7.3 | Free plan | $99/mo | — | — | — | — |
| 6 | Factors.ai | 6.9 | No | $0.50/mo | No | 199 /mo | — | — |
| 7 | Snitcher | 6.8 | No | $49/mo | No | 49 /mo | — | — |
| 8 | Albacross | 6.7 | No | — | No | — | — | — |
| 9 | D&B Hoovers | 6.7 | No | $44.08/mo | — | — | — | Yes |
| 10 | Happierleads | 6.7 | No | $0.10/mo | No | 99 /mo | — | — |
| 11 | Lead Forensics | 6.7 | No | — | No | — | — | — |
| 12 | Salespanel | 6.7 | No | $99/mo | No | 99 /mo | — | — |
| 13 | Visual Visitor | 6.6 | No | — | No | — | — | — |
| 14 | Leadberry | 5.9 | Free plan | $24/mo | Yes | 24 /mo | — | — |
| 15 | Ploy | 5.9 | Free plan | $50/mo | Yes | 50 /mo | — | — |
| 16 | OrgSight | 5.8 | Free plan | Free | Yes | — | — | Yes |
| 17 | DemandSense | 5.3 | No | $89/mo | No | 89 /mo | — | Yes |
| 18 | Factors.ai | 5.3 | No | $199/mo | No | 199 /mo | — | — |
| 19 | Leadinfo | 5.3 | No | €69/mo | No | — | — | — |
| 20 | SalesViewer | 5.3 | No | €99/mo | No | — | 1 domains | Yes |
| 21 | SiteSonar | 5.3 | No | $599/mo | No | 299 /mo | 1 domains | Yes |
| 22 | Whois Visiting | 5.2 | No | $62.10/mo | No | 69 /mo | — | — |
| 23 | Dealfront | 4.9 | No | — | Yes | — | — | — |
| 24 | lead.box | 4.8 | No | $111/mo | No | — | — | — |
| 25 | LeadLander | 4.8 | No | — | No | 89 /mo | — | — |
Is your platform on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which website visitor identification software is ranked first on Inferse?
Lusha is ranked #1 of 28 with a score of 7.4. Leadfeeder is second and Nalloo third.
How many of these have a free plan?
8 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Happierleads has the lowest first paid tier we found: $0.10/mo.
How is this list ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.