Before we started Leadfeeder back in 2012, we ran a previous web analytics startup, helping B2B companies analyze their website traffic and its sources.

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The Story Behind Building the Best Visitor Identification Software for Marketers & Salespeople

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60-Second Summary

Sales and marketing teams often work blind, making calls and sending content without knowing who visits their site or what they care about. Leadfeeder addresses this by revealing visitor identity and intent via its proprietary Tracker script, IP-to-company databases, and machine learning, and by pushing contextual data into CRMs and collaboration tools.

  • Key takeaway: Convert anonymous website visits into actionable leads by identifying companies, pages viewed, and engagement to prioritize outreach immediately.

  • Standout strategies & tactics: Install the lightweight Leadfeeder Tracker script for near real-time company identification with up to 30% higher match rates than legacy methods; optionally connect the GA Connector to send firmographic data into GA4 for enhanced reporting; add Slack/email alerts and two‑way CRM integrations so insights reach teams where they work.

  • Real-world lessons: Context matters more than raw metrics—connect visit data to CRM records and workflows so sales can act with relevance and timing, not guesses.

  • Framework & impact: Design tools to be easy to adopt, provide immediate value, and integrate bi‑directionally so sales catch up with marketing tech—leading to faster follow‑ups, better messaging, and improved lead generation.

*This summary was created with AI assistance, using our original content.

While we were doing that, we noticed that most salespeople and marketers were spending a lot of time in the dark.

They were making cold calls, creating content, and sending emails blindly—with no visibility into what prospects were interested in or how their efforts affected behavior and engagement.

Specifically:

  1. They didn’t know when clients showed interest by visiting the website

  2. They didn’t know how engaged leads were or what they were interested in.

  3. They didn’t have the data to personalize their efforts or figure out what worked (and what didn’t) to move leads through to a sale.

So, we thought to ourselves, “Can we fix this?”

  • What if sales and marketing teams knew when leads visited their website?

  • What if they knew what pages they visited and what they were interested in?

  • What if they could pull that data from within our own code without Google Analytics?

Could we build a website visitor tracking tool that does this and integrates with the sales and marketing tools they already use (like HubSpot, Salesforce, Pipedrive, and MailChimp)?

Below, I'll talk about the best B2B website visitor identification software, Leadfeeder:

Note: Spending your time in the dark? Leadfeeder’s B2B website visitor identification software shines a light on prospects visiting your website. You can try Leadfeeder free for 14 days here.

We also realized that existing methods to access that information left a lot to be desired:

  • They were so complicated and technical that only a developer could deploy them—sales and marketing teams just weren’t going out of their way to get this done.

  • They isolated and siloed data in their own system. We noticed that sales and marketing teams needed a simpler way to identify company-level visitors. We initially used Google Analytics as a data layer, but quickly developed our own proprietary Tracker script, which delivers higher-quality data, near real-time updates, and works independently of any analytics platform.

  • They didn’t fit into the daily lives of the marketers and salespeople the products were supposedly built for.

We knew how valuable visitor identification could be for B2B lead generation, so we sought to build a solution that would address the pain points of existing website visitor identification tools and finally give marketers and salespeople easy access to powerful data.

Once we saw everything the current website visitor identification market lacked, we asked ourselves:

  • What makes the best B2B website visitor identification software?

  • What would we want in one?

Building the best B2B website visitor identification software

At Leadfeeder, we want to give our customers the information they need as quickly and easily as possible, using the data that already exists.

That’s why everything we do at Leadfeeder circles back to one tenet: context.

We’re here to help make marketing and sales teams as intelligent as they can be, and that comes down to offering people insights, not just data.

For us, that distinction comes down to context.

Website visitor identification data shouldn’t be siloed or scattered across a dozen tools that don’t work together—it should be connected and enable you to see the whole picture, instead of a single data point.

When marketers and salespeople can see the context behind numbers, that data becomes easier to use, act on, and connect with other data and tools they use every day.

That idea crystallized into three big attributes we knew we’d want in our own website visitor identification software:

  1. Easy and quick to set up, with access to retroactive data to provide immediate results.

  2. Insights to bring intelligence to the age-old sales process.

  3. Integrations to plug visitor identification data right into existing sales and marketing tools.

Making it easier to access website visitor identification data

One of the biggest problems we saw with the landscape of B2B website visitor identification software is how data is accessed.

Many tools require marketers and salespeople to install a script on their website or follow some other complicated process to get their website visitor tracking data.

When you’re looking for software to make your work and life easier, the last thing you want is hurdles right out of the gate.

Our solution was to make setup as frictionless as possible. Today, all you need to do is install a lightweight JavaScript snippet (the Leadfeeder Tracker) on your website. Within minutes, you start seeing which companies visit your site. Two things make this work:-

  • The Tracker captures visitor IP addresses, domains, and location data automatically -- no third-party analytics platform required

  • Our proprietary IP-to-company databases and machine learning algorithms match visits to companies in near real-time, with industry-leading accuracy

Over time, we evolved our technology significantly. The Leadfeeder Tracker (originally called Booster) became our primary identification engine, gathering data 24 times per day and matching companies using our own databases.

In February 2020, Google removed the GA Networks Report entirely, confirming our decision to build independent identification technology. Today, Google Analytics plays no role in how Leadfeeder identifies companies.

We do offer an optional GA Connector that sends Leadfeeder's firmographic data (industry, company name) into GA4 for enhanced reporting, but identification runs entirely on our own Tracker.

Helping sales processes catch up with marketing technology

Another thing we noticed when we started Leadfeeder was that sales technology lagged behind advancements in marketing technology.

Marketing technology has evolved rapidly over the last decade.

From email marketing automation to marketing analytics and intelligence, the industry looks completely different from the way it did in the not-so-distant past.

But on the sales side, there hasn’t been such a radical development.

Today, salespeople still get to the office, fire up their CRM, and start dialing—the same as they did 10 years ago.

So, we saw a sales process ripe for change.

Salespeople need the intelligence and context to know who to call, when to call, and what messaging will resonate with prospects.

That’s why we focused on building a tool that works with CRM software and prospecting tools.

Building software that fits into the lives of salespeople & marketers

The last problem we wanted to address with our tool wasn’t limited to being a website visitor-tracking software. It’s an issue endemic to many a failed technology—they don’t fit into people’s lives.

At the end of the day, all the data in the world isn’t useful unless salespeople and marketers can access it without hassle or extra steps.

Data isn’t all that actionable unless it:

  • Comes to you automatically

  • Works with your other data

That’s why we added two key Leadfeeder features: new lead notifications (for both email and Slack) and two-way integrations with popular CRM systems.

We want the data salespeople get from Leadfeeder to work together with all the other information they have access to, so we built a CRM integration that goes both ways.

visitor-identification-software-pipedrive
visitor identification software pipedrive

Leadfeeder doesn’t just send leads to your CRM—it also pulls data from your CRM into your Leadfeeder dashboard, which lends even more context to your visit data.

That means our software can be an integral part of both lead generation and lead nurturing processes, helping salespeople to:

  • Identify individual visitors by company and send potential leads to their respective CRMs.

  • Discover the right messaging to convert existing sales leads and upsell existing customers.

  • Customize Slack and email alerts so you know when to follow up.

Everything lives together, so salespeople can get a holistic view of both new and existing leads.

Leadfeeder is the best B2B website visitor identification software

Here at Leadfeeder, we’ve seen both our software and the visitor identification industry grow significantly over the years.

Throughout, we’ve kept actionability and context at the core of every product development decision—that’s a big part of why we believe Leadfeeder is the best B2B website visitor identification software available today.

Since we were voted as a G2 leader in our category, our customers seem to think so, too.

Note: Spending your time in the dark? Leadfeeder’s B2B website visitor identification software shines a light on prospects visiting your website. You can try Leadfeeder free for 14 days here.

Sanjana Murali

Content Marketing Manager @ Leadfeeder

Sanjana Murali is a Product Marketing Manager at Leadfeeder with more than a decade of experience in B2B SaaS product marketing and content strategy. She specializes in translating complex product capabilities into clear messaging that resonates with marketing and sales teams.

Sanjana has led product launches, developed messaging frameworks, and built content strategies that help companies understand and act on buyer intent. Her work bridging product, marketing, and customer insights informs her perspective on how businesses can identify website visitors and turn anonymous traffic into actionable sales opportunities.

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