Companies Using Validity

Most DNS verification records tell you a company tried something once. Validity's is stricter. It belongs to Sender Certification, Validity's email allowlist, and the program's requirements say the TXT record must stay "for the duration of your membership in the Certification program". Our October 2026 crawl finds 1,195 domains carrying it, 735 of them matched to a company. I read the list from the sales side, and the first question turned out to be whose account each record belongs to.

What the record proves

Certification is an audit of a sender's mail program. Validity checks that the business alone sends over its dedicated IPs, that SPF, DKIM and DMARC are in place, and that it handles consent and bounces, then puts the IPs on an allowlist it shares with mailbox providers. The TXT record is the domain-ownership step: a code from Validity, published on every domain the sender mails from. So a domain on this list is one that a certified, or once-certified, sender declared as its own.

Sales signal: these companies have already passed a deliverability audit. They have email teams, they care about inbox placement, and they buy tools to protect it.

One account, many domains

The code is per account, and that changes the count. All of Ancestry's sites share one code, as do Entain's. The 1,162 domains still carrying the record use 568 codes, and 383 codes appear on a single domain. The biggest families are Spanish online schools (44), Entain's betting brands (30), a home-services franchisor (21) and an events company (20). One code also sits on 52 survey-panel and adult-dating sites with no common owner we have confirmed, so it may be a mixed account like the ones we removed. The same mechanism let us remove 327 domains where one account sits on unrelated companies: 207 local publishers carry the code of Mirabel Technologies, a publishing platform, rather than their own.

Sales signal: count accounts, not domains. One Validity code is one buying decision, even when it covers 30 brand sites.

A single reading, and a current one

The usage chart has one point because our earlier monthly totals still included the 327 removed domains. Over a longer run the domains we crawl turn over every month, dead sites out and new ones in, and our detection widens, so I wouldn't read movement from a short series anyway. What I can say is that the record is current: on 15 October 2026, 1,162 of the 1,195 (97.24%) still carried it. Only 22 domains dropped it since we began tracking on 17 March 2026, and 3 of those still have it on another hostname.

"A Validity record is one of the few DNS entries that names an account. Read the code, not the domain, and 1,162 live domains become 568 senders." - Sophie Clarke, Product Marketing Manager at TechnologyChecker.io

Sales signal: treat the list as active members plus a thin layer of lapsed ones. Very few domains remove the record each month.

Big senders, every size

Company size spreads wide, with a heavy top end. 107 matched companies (15.22%) employ more than 1,000 people, against 21.91% with 1 to 10 staff. The large names are consumer brands and institutions that mail millions of customers: Ulta Beauty, Next, Floor & Decor, Ascension, Corewell Health, American Family Insurance, Unum, Empower, the BBC and Freshfields. Age skews established: 60.34% were founded between 2000 and 2019, and 8.14% before 1960. The small companies are often single brands inside larger groups, which is how the per-account codes read.

Sales signal: email, CRM and data vendors should treat this as a list of mature email programs with budget.

Where they are

The United States has 295 matched companies, the United Kingdom 124 and Australia 63. Spain is fourth with 45, but 26 of those are the Spanish online schools, so Spain is one customer more than a market. Retail leads the industries at 11.98%, then financial services (5.24%) and software development (4.64%). English-speaking countries hold 510 of the 735 matched companies.

Sales signal: US and UK consumer retail is the core. Outside it, check for one operator behind a country's numbers before you build a territory plan.

Proofpoint at the front door

The switching table on this page is empty, and it should be: a certification record and an inbound filter don't replace each other. What we do see is overlap. 98 Validity domains run Proofpoint as their inbound gateway today, out of 102 that have ever shown both. These are large senders protecting their own inboxes with an enterprise gateway while certifying their outbound mail.

"On these domains Proofpoint filters what the company receives and Validity certifies what it sends. Big email programs pay for both." - Sophie Clarke, Product Marketing Manager at TechnologyChecker.io

Sales signal: a Validity domain with an enterprise inbound gateway is a security-mature email buyer. That pairing is a better qualifier than industry.

What they send with

The sending stack is visible in DNS. Amazon SES is on 14.98% of the 1,195 domains and SendGrid on 11.72%, with Klaviyo at 6.53% and Mailchimp at 6.36%. Mailboxes split between Microsoft 365 (26.11%) and Google Workspace (23.43%). On the web, Google Analytics runs on 73.72%, and Adobe Analytics (6.03%) and Adobe Experience Manager (4.27%) mark the enterprise end. Our guide to DMARC adoption covers the authentication side these senders have to pass.

Sales signal: a company on SES or SendGrid that also pays for certification runs its own sending infrastructure. Pitch to the email operations team.

What Validity says, and what we see

Validity's Sender Certification page calls it "the exclusive email allowlist" and cites relationships with 75+ global mailbox and security providers. The product now sits inside Validity Engage, alongside inbox placement testing, email creation and testing and contact data quality, and the old Everest address leads to Engage's deliverability page. Validity publishes no prices. Its requirements tie the number of IPs an account can certify to its contracted annual sending volume, which fits the large senders we see.

Sales signal: Validity sells to email programs big enough to negotiate a volume contract. Its customers are good prospects for anything that improves or measures email at scale.

Key takeaways

1. 1,195 domains carry a Validity domain record, mostly for Sender Certification; 1,162 still did on 15 October 2026.

2. The code is per account: 568 codes cover the 1,162 domains still carrying the record.

3. We removed 327 domains whose code belongs to someone else's account, 207 of them Mirabel Technologies' publishing clients.

4. Large consumer brands lead: 107 matched companies have more than 1,000 staff, and retail is the top industry.

5. 98 domains pair Validity with Proofpoint inbound.

How to use this list

Group domains by account before you count prospects, and lead with the email team. For the full list of 1,195 Validity domains with company, size and stack data, explore TechnologyChecker.io.