Can Demandbase identify anonymous website visitors?
Demandbase Account ID unmasks the companies behind anonymous traffic, not the people — plus a genuinely free tier up to 25K monthly visitors.
Yes at the account level, no at the person level. Demandbase Account Identification is built to "unmask the unknown companies that visit your website" — an organisation with firmographics, never a named human. It resolves those accounts from a wider signal set than a plain reverse-IP tool, and it publishes a free tier up to 25K monthly unique visitors.
Last verified: 2026-07-29. Every quote and figure below was read off a Demandbase-owned page on that date, with the URL inline.
I'm Dag, co-founder of ContactLevel. We pair with Demandbase rather than compete with it, and we do not sell anonymous visitor identification ourselves, so this page ends by sending you to a different vendor for the part neither of us does.
What Demandbase actually resolves
The Account Identification page leads with the answer: "Unmask the unknown companies that visit your website."
Companies. Not the person on the pricing page. That word choice runs consistently through Demandbase's material, and it is the correct read of the product.
Where Demandbase separates itself from the reverse-IP crowd is in how much it throws at the account-resolution problem. It describes "behavioral methods, real-time signal processing, traffic volume and time patterns, and a massive set of proprietary IP and cookie data", and publishes the raw scale: 3.7 billion classified IPs and 3.1 billion active cookies and EIDs.
Its identity graph also takes in device IDs, third-party IDs and — this is the detail I find most telling — public VPN and ZTNA providers (Demandbase Account Identification FAQ, 2026-07-29). A tool that has bothered to classify zero-trust network access egress ranges is a tool that has met the modern corporate network. Plain reverse IP has not. IP targeting for B2B covers what remote work and VPN adoption did to naive IP lookups.
What Demandbase does not publish
A coverage percentage.
The page says match rates and accuracy "have never been higher" and that Demandbase will "never sacrifice accuracy to inflate match rates." Both of those sentences are more defensible than a headline number. Compare RB2B, which publishes "Identify 70-80% of your website traffic" on its homepage and 15-45% contact-level coverage on its pricing page. Neither figure is false — they count different entities, and RB2B's own Demandbase partnership page shows the split — but you have to read all three pages together to see it, and most buyers read one. ContactLevel vs RB2B sets them side by side.
They are also not something you can plan a quarter against. So do the obvious thing: run the free edition against your own traffic for a month and measure your own rate. Your traffic mix — US share, corporate networks, B2B versus consumer — drives the result more than the vendor does. That is true of every tool in this comparison, and it is the single most useful habit in deanonymizing website traffic.
The free tier, precisely
This is the part most comparison pages skip, and it is the most practically useful fact on this page.
Demandbase publishes: "Uncover up to 25K monthly unique visitors with Account ID Free Edition" (demandbase.com, 2026-07-29). It appends company data to Google Analytics visits.
| Free Edition | Detail |
|---|---|
| Volume ceiling | 25,000 monthly unique visitors |
| Fields appended | Company, Website, Industry, Segment, Company size, Revenue range, HQ State, HQ Country |
| Delivery | Into Google Analytics |
| Entity resolved | Company |
| Named individuals | None |
| Dependency | Requires Google Analytics, so a GA4-less stack cannot use it as published |
For a mid-market B2B site, 25K monthly uniques is not a token allowance — it covers a lot of real traffic. If your requirement is "which companies read our pricing page," it is the larger of the two free-standing free tiers in this comparison: Leadfeeder's €0 Lite plan is also free but caps you at the last 100 companies a month with 7 days of history (Leadfeeder pricing). HubSpot bundles company-level website visits into every paid plan, which is a third way to get the same answer without a separate line item.
Can Demandbase identify anonymous website visitors? The capability table
| Demandbase Account ID Free | Demandbase Account ID (paid platform) | RB2B | ContactLevel | |
|---|---|---|---|---|
| Anonymous IP → company | Yes | Yes | Yes | No |
| Anonymous IP → named person | No | No | Yes, US traffic only | No |
| Requires the person already be in your audience | No | No | No | Yes |
| Geography | Global | Global | Person-level US only | Strongest in the US |
| Signals used | IP and cookie data | IP, cookies, device IDs, third-party IDs, public VPN and ZTNA providers, behavioural and traffic-pattern models | Identity graph on browser/cookie signals | Your own audiences plus identity enrichment |
| Published scale | — | 3.7bn classified IPs, 3.1bn active cookies and EIDs | — | — |
| Published coverage figure | None | None | Contact-level 15-20% (Pro), 35-45% (Pro+) | 70-99% list-to-platform match rate |
| Price | Free to 25K monthly uniques | Enterprise contract | $0 / $79 / $149 / $199 per month | $1,000/month entry |
| Output destination | Google Analytics | Demandbase platform, CRM, ad orchestration | Slack, CRM, CSV | LinkedIn, Meta, Google, Reddit, X audiences |
The bottom two rows are the ones that decide stacks. Demandbase gives you an account and a place to act on it inside an ABM platform. RB2B gives you a person and a Slack message. ContactLevel gives you an ad audience that matches. Those are three products, and most teams that are serious buy at least two.
Demandbase pricing covers what the paid platform actually costs, and 6sense vs Demandbase is the head-to-head if you are choosing between the two enterprise suites.
What to pair Demandbase with
→ For named individuals, US traffic only. RB2B or Datamoon. RB2B states its person-level identity is "a US-only technology with a US-only database"; Datamoon states "We only identify visitors in the US." Expect a minority of sessions — RB2B publishes 15-20% contact-level on Pro and 35-45% on Pro+ (rb2b.com/pricing, 2026-07-29), against a 70-80% homepage figure that counts company matches too.
→ For person-level intent rather than account-level. Demandbase tells you an account is warm. It does not tell you which human inside it is researching. That is what Buyerfeeds does — person-level intent, sold self-serve as a data feed. Full disclosure: it is ContactLevel's sister product, same founders, and we run it on our own leads. Intent data providers compares it against the account-level networks.
→ For reaching the committee once you have the account. That is the gap below.
Where ContactLevel fits, and where it does not
Stated plainly, because the alternative is a disappointed customer in month two: ContactLevel does not identify anonymous net-new website traffic.
We name a website visitor only when that person is already in one of your ContactLevel audiences — synced from your CRM, uploaded, or built in-platform. There is no ContactLevel pixel that puts a name on a stranger. If that is your requirement, run an identity-graph vendor upstream and pipe the output into us. At least one customer runs exactly that stack with the RB2B pixel as the upstream feed.
Where we sit relative to Demandbase is one step downstream. Demandbase hands you an in-market account. You still have to reach the people inside it, on the channels they actually use — Gartner puts a complex B2B deal at six to ten decision makers, and Forrester's 2024 State of Business Buying found an average of 13. The obstacle is identifiers, not intent: the work email in your CRM is not what LinkedIn, Meta, Google, Reddit or X match on, and nobody signs up to Meta with their work email. Push a raw account-derived contact list through an ABM platform to a social ad platform and a large share of it silently fails to match.
Contact-level data enrichment maps the business identity to the personal identifiers those platforms match on, which moves a list into the 70-99% range. That is a list-to-platform match rate, measuring something entirely different from Demandbase's account-ID coverage or RB2B's 15-45%; B2B match rates exists to stop those three numbers being compared to each other.
On measurement: we report clicks and website visits at the individual person level. We do not report per-person ad impressions. Person-level impression tracking is on the roadmap; it is not in the product today and we are not publishing a date. What we track is the statement of record.
Published pricing is on /pricing: $1,000/month for 10,000 net-new contacts, $3,000/quarter for 50,000, $10,000/year for 200,000. 14-day trial, 10,000 free contacts.
Where to go next
→ Can 6sense identify anonymous website visitors? — the other enterprise account-ID engine, and the one that states its person-level policy on the record.
→ 6sense vs Demandbase — the full head-to-head with pricing.
→ Demandbase alternatives — for teams who decide the platform is not the right fit.
→ Can ZoomInfo identify anonymous website visitors? — and why a company match plus a contact database is not person-level ID.
→ Who is visiting my website? — the plain cross-vendor answer with prices read off live pages.
→ IP targeting for B2B — why classifying VPN and ZTNA egress is now table stakes for account ID.
→ Intent data providers — where person-level intent fits against the account-level networks.