London Daily

Focus on the big picture.
Friday, Jun 20, 2025

How brands get your phone number and call after they see you on their website

How brands get your phone number and call after they see you on their website

Brands can use technology to see who is browsing their websites, and can use data collected on consumers to email or call them to try to complete a sale. Consumers, confused how this is happening, have taken to Twitter to complain about it. Users have privacy tools at their disposal to try to limit tracking.

Dave Kerpen was hoping prices would drop on some expensive tickets for a late-September New York Mets game. He kept checking the prices to no avail.

At one point, he checked his StubHub app and added the tickets to his cart. He decided not to buy just then, and closed the app.

Almost right away, he got a phone call. It was StubHub, telling him he could get a 5% discount for the tickets if he bought them immediately over the phone.

“It was surprising because I didn’t even realize they had my phone number,” Kerpen, an author and entrepreneur, told CNBC. “If it startled me, it probably startled most people.”

Creepiness aside, Kerpens said he was disappointed in the meek 5% discount offer and didn’t buy the tickets, but added “it probably works part of the time or they wouldn’t be doing it.”

A StubHub spokeswoman said the company began doing this more than three years ago “for select events” to help consumers with factors like the best seat or the best day to attend an event. She said the practice is to first reach out by email then follow up by phone. Kerpen said he had not received an email.

“When consumers are considering a high cost purchase, there is a desire for a more personal touch, which can give them greater confidence,” StubHub wrote in an emailed statement.

It’s not surprising that a big internet company -StubHub is owned by eBay -would track consumer activity on the web. That’s how brands target users with such increasing precision and how data collection firms build comprehensive profiles that can help advertisers get the messages to the right people at the right time.

But after several years of high-profile scandals over how big internet companies like Facebook collect and use data from users, consumers are paying a lot more attention -especially if they’re not sure how a website got their number.

Last week, comedy writer Ariel Dumas wrote on Twitter that she received a phone call from furniture retailer Wayfair while browsing its website. She wasn’t happy about it.


A Wayfair spokeswoman told CNBC in an emailed statement that the company recently started testing outbound calls to less than 1% of customers “to assist them in the shopping process.”

“We do not make any outbound phone calls based on real-time site activity,” the representative said. “In all cases, customers receive an introductory email from the team prior to any phone outreach.”

Critics have also taken to Twitter to criticize T-Mobile, ePromos, Staples and Liberty Mutual for what they claim is similar behavior. ePromos and Staples didn’t respond to a request for comment. Liberty Mutual did not provide a comment as of press time. T-Mobile declined to comment on the record.


How it happens


Though it may not be clear on the surface for consumers, the practice of figuring out the identity of an online customer, or connecting that person’s behavior to their other online behaviors, is pervasive.

Here’s how it can happen.

1. Many websites work with technologies that help them collect and connect consumer behavior across devices.

There are a bunch of technology companies that specialize in tracking consumer behavior online and in the real world, across different devices.

Wayfair appears to use services from at least one such company, Neustar, which describes itself as a tech company that provides real-time information and analytics for different industries, including marketing. The company says it helps clients know “everything they can about their customers and prospects.”

Wayfair has code from Neustar directly on its website, signifying a direct relationship, according to Ratko Vidakovic, founder and principal of ad tech consultancy AdProfs. It wasn’t clear if the retailer used Neustar in the example the Wayfair visitor tweeted about, though. Neustar initially declined to comment, but after this story’s publication a spokesperson said the company works with Wayfair on the fraud, risk and compliance side. He said unless a person on Wayfair’s website was an existing customer and they authenticated on the website with some form of personal information, Neustar wouldn’t have been involved in this type of experience.

Consumers can turn to a Chrome extension called Ghostery to see what other kinds of tracking technologies sites are using, and block them if desired. Ghostery shows that Wayfair also works with a number of other third-party trackers from providers including retargeting company Criteo and IBM’s analytics company Tealeaf. It also lists so-called trackers from tech giants like Google, Facebook, Snapchat, Microsoft’s LinkedIn and more.

(The practice is not limited to retailers, by the way. Publishers including CNBC use dozens, if not hundreds, of trackers too. For instance, CNBC uses one called Bounce Exchange, whose website says its technology identifies 40% of a site’s anonymous traffic across all their devices and sessions, and Parse.ly to help track traffic to stories.)

2. At some point, the shopper probably entered his phone number into an online form. If that form was on a website that included a tracker, it may have been collected there.

Jeremy Tillman, president and head of product and marketing at Ghostery, said if a consumer has ever added their phone number into a form and there was a tracker on that web page looking for that information, that phone number can be added to a person’s “profile” for those companies collecting that information.

Some companies also aggregate publicly available information to add to these types of profiles.

3. Companies can use technology to figure out when a consumer is on their site, and map it to a phone number already collected.

It isn’t difficult for companies to know who is on their website as they’re browsing -- especially, like in the StubHub example, if the person has identified themselves and put tickets in a shopping cart.

Companies like Neustar along with identity resolution companies LiveRamp and Tapad have the kind of data to map a user, whether they’re anonymous or logged-in, to a phone number, Vidakovic said.

Some companies like Lead Forensics can even provide the names, email addresses and phone numbers of visitors to web sites in real-time.


Creepy or convenient?


Bryan Forbes, a vice president of strategic planning at IN Connected Marketing, said consumers aren’t fully aware of how many methods brands are using online to encourage them to shop.

“The last thing a brand wants to do is scare and turn someone off because they come across as creepy,” he said in an email. But the ways brands can use technology to track people and their behaviors is only getting more sophisticated. As a result, he said there will probably be an increase in “real-time” reach outs based on website browsing under the guise of assisting in the shopping process, despite this risking consumer trust.


“If this become pervasive, what will the consumer [and] shopper backlash be?”

Kerpen, who received the phone call from StubHub, said the company might consider texting consumers before calling. He said bot-delivered texts could probably be cheaper, and might be less intrusive feeling for consumers.

Also, he said if StubHub is going to call, it could at least call with a better deal.

Newsletter

Related Articles

0:00
0:00
Close
16 Billion Login Credentials Leaked in Unprecedented Cybersecurity Breach
Senate hearing on who was 'really running' Biden White House kicks off
Iranian Military Officers Reportedly Seek Contact with Reza Pahlavi, Signal Intent to Defect
FBI and Senate Investigate Allegations of Chinese Plot to Influence the 2020 Election in Biden’s Favor Using Fake U.S. Driver’s Licenses
Vietnam Emerges as Luxury Yacht Destination for Ultra‑Rich
Plans to Sell Dutch Embassy in Bangkok Face Local Opposition
China's Iranian Oil Imports Face Disruption Amid Escalating Middle East Tensions
Trump's $5 Million 'Trump Card' Visa Program Draws Nearly 70,000 Applicants
DGCA Finds No Major Safety Concerns in Air India's Boeing 787 Fleet
Airlines Reroute Flights Amid Expanding Middle East Conflict Zones
Elon Musk's xAI Seeks $9.3 Billion in Funding Amid AI Expansion
Trump Demands Iran's Unconditional Surrender Amid Escalating Conflict
Israeli Airstrike Targets Iranian State TV in Central Tehran
President Trump is leaving the G7 summit early and has ordered the National Security Council to the Situation Room
Taiwan Imposes Export Ban on Chips to Huawei and SMIC
Israel has just announced plans to strike Tehran again, and in response, Trump has urged people to evacuate
Netanyahu Signals Potential Regime Change in Iran
Juncker Criticizes EU Inaction on Trump Tariffs
EU Proposes Ban on New Russian Gas Contracts
Analysts Warn Iran May Resort to Unconventional Warfare
Iranian Regime Faces Existential Threat Amid Conflict
Energy Infrastructure Becomes War Zone in Middle East
UK Home Secretary Apologizes Over Child Grooming Failures
Trump Organization Launches 5G Mobile Network and Golden Handset
Towcester Hosts 2025 English Greyhound Derby Amid Industry Scrutiny
Gary Oldman and David Beckham Knighted in King's Birthday Honours
Over 30,000 Lightning Strikes Recorded Across UK During Overnight Storms
Princess of Wales Returns to Public Duties at Trooping the Colour
Red Arrows Use Sustainable Fuel in Historic Trooping the Colour Flypast
Former Welsh First Minister Addresses Unionist Concerns Over Irish Language
Iran Signals Openness to Nuclear Negotiations Amid Ongoing Regional Tensions
France Bars Israeli Arms Companies from Paris Defense Expo
King Charles Leads Tribute to Air India Crash Victims at Trooping the Colour
Jack Pitchford Embarks on 200-Mile Walk to Support Stem Cell Charity
Surrey Hikers Take on Challenge of Climbing 11 Peaks in a Single Day
UK Deploys RAF Jets to Middle East Amid Israel-Iran Tensions
Two Skydivers Die in 'Tragic Accident' at Devon Airfield
Sainsbury's and Morrisons Accused of Displaying Prohibited Tobacco Ads
UK Launches National Inquiry into Grooming Gangs
Families Seek Closure After Air India Crash
Gold Emerges as Global Safe Haven Amid Uncertainty
Trump Reports $57 Million Earnings from Crypto Venture
Trump's Military Parade Sparks Concerns Over Authoritarianism
Nationwide 'No Kings' Protests Challenge Trump's Leadership
UK Deploys Jets to Middle East Amid Rising Tensions
Trump's Anti-War Stance Tested Amid Israel-Iran Conflict
Germany Holds First Veterans Celebration Since WWII
U.S. Health Secretary Dismisses CDC Vaccine Advisory Committee
Minnesota Lawmaker Melissa Hortman and Husband Killed in Targeted Attack; Senator John Hoffman and Wife Injured
Exiled Iranian Prince Reza Pahlavi Urges Overthrow of Khamenei Regime
×