Ranked · UK · Updated June 2026
The best website visitor identification software for UK teams
For identifying the companies behind anonymous website traffic, Dealfront leads in the UK and Europe: its Leadfeeder engine pairs reverse-IP matching with trade-register data, and it's the only tool here with a free tier. Lead Forensics is the established UK specialist; ZoomInfo's WebSights bundles visitor ID into a broader, US-first platform. Here's how the three compare.
- 1
Dealfront
European website-visitor ID and B2B sales intelligence: Leadfeeder + Echobot, GDPR-native, with a free tier.
7.3 /10Purpose-built for this exact job: Leadfeeder's reverse-IP visitor identification plus Echobot's trade-register company data, GDPR-native and the only tool here with a genuine free tier (up to 100 companies/mo). The deepest European coverage of the three; the full platform gets pricey and US data is thinner.
- Entry price from €1,188/yr
- Pricing Published
- Free plan Yes
Visit DealfrontRead our Dealfront review →We may earn a commission when you buy through links on this site. It never affects our scores, rankings or verdicts. See our methodology.
- 2
Lead Forensics
Reverse-IP website-visitor identification that shows which companies browse your site, at an enterprise price.
6.4 /10The established UK name in reverse-IP visitor ID, with strong real-time alerts and the most-praised support in the category. The trade-offs are opaque five-figure pricing, annual upfront contracts, and reverse-IP's structural limit: it names the company, not the person.
- Entry price ~$6,000/yr
- Pricing Demo-gated
- Free plan No
Visit Lead ForensicsRead our Lead Forensics review →We may earn a commission when you buy through links on this site. It never affects our scores, rankings or verdicts. See our methodology.
- 3
ZoomInfo
The deepest US B2B database, with intent, visitor-ID and enrichment in one platform, at an enterprise price.
7.3 /10WebSights folds visitor identification into the deepest sales platform, so teams already on ZoomInfo can act on a signal alongside intent and contact data in one place. Visitor ID is a feature rather than the focus, US-strong, and UK/EU coverage is a paid add-on at enterprise pricing.
- Entry price ~$14,995/yr
- Pricing Demo-gated
- Free plan No
Visit ZoomInfoRead our ZoomInfo review →We may earn a commission when you buy through links on this site. It never affects our scores, rankings or verdicts. See our methodology.
Every score comes from the same rubric, applied identically. See the consolidated pricing table for all providers side by side , or check whether buying B2B data is legal in the UK .
Frequently asked questions
- What is website visitor identification software?
- It reveals which companies are browsing your website even when they never fill in a form, by matching the visitor's business IP address against a database of company IPs, known as reverse-IP. A key limit: it identifies the company, not the individual person.
- Which website visitor identification tool is best in the UK?
- Dealfront, via its Leadfeeder engine, for European coverage, GDPR-native sourcing and a free tier. Lead Forensics is the established UK specialist with strong support but opaque five-figure pricing, and ZoomInfo's WebSights suits teams already on its platform.
- Is website visitor identification GDPR-compliant?
- It can be: reputable tools identify the company rather than the individual and rely on business-level data. But you remain responsible for your cookie/PECR consent banner and your own lawful basis; buying a "GDPR-compliant" tool doesn't discharge that. See our UK legal guide.
- Can you identify website visitors for free?
- Partly. Dealfront's Web Visitors tier is free for up to 100 identified companies a month with 7-day data retention, enough to test the approach before paying. Most other tools in this category are paid or demo-gated.