Companies Using Sectigo TrustLogo

Sectigo TrustLogo is the badge Sectigo gives its certificate customers, and our October 2026 crawl finds it working on 2,134 domains. A domain counts when a page loads Sectigo's seal script from secure.trust-provider.com and the seal still answers for the site. That second test is new on this page, and it halved the count. 1,347 of the 2,134 domains match a company, and the seal ranks 6th of 16 in SSL/TLS Certificates with 0.99%.

Half the seals had stopped answering

A TrustLogo has two parts: a badge image, often hosted on the customer's own server, and a script that opens Sectigo's verification page when a visitor clicks or points at it. On 15 October 2026 I asked that page about every domain where our crawl saw the script, using the seal code from the page wherever we could read it. For 2,284 of the 4,169 we could check, 54.79%, it answered that credentials are not available. The badge still shows on those sites. The check behind it is empty.

The certificates explain it. I connected to every site and read who issued its certificate. Of the 2,284 dead seals, 1,101 sat on sites serving a Let's Encrypt certificate, 368 on Google Trust Services and 308 on hosts where we couldn't read a certificate at all. Those owners changed CA and kept the old badge. We removed the 2,078 dead seals on sites with another CA's certificate or none we could read. The other 206 still serve a Sectigo certificate, so they stay in, as Sectigo customers whose seal has broken.

"A seal is a promise that the CA will vouch for the site. On more than half the pages carrying a TrustLogo, Sectigo no longer would, and the largest group of those sites had moved to a free certificate." - Mehmet Suleyman, CEO & Co-founder at TechnologyChecker.io

Sales signal: a dead TrustLogo marks a site that left Sectigo without cleaning up. If you sell certificate management or website maintenance, that's a list of owners who changed CA and forgot one piece.

The chart

The chart has one point, 2,134 domains in October 2026, because the seal test was run once. Our earlier monthly totals counted every TrustLogo script, working or not. Even uncorrected they wouldn't compare month to month: the set of domains we crawl turns over, with dead sites dropping out and new ones added, and our detection signals widen. Since we began tracking the seal on 4 August 2026, 305 domains dropped it on at least one hostname. 79 still carry it on another, so 226 left entirely.

Sales signal: there's no adoption curve to ride. Seals get added once, with a certificate, and then sit until someone redesigns the site.

Who still shows it

61.51% of matched companies with a known size have 1 to 10 staff, and only 21 have more than 1,000. 35.23% were founded in the 2010s and 35.10% before 2000. The geography is less American than most web tools. The United States has 415 matched companies and India 115, and Argentina ties the United Kingdom on 79. The named users are public bodies and long-running local firms: Poșta Română, Kenya's Public Procurement Regulatory Authority, the University of Calicut, the Indian Institute of Horticultural Research and Garage Galliker's Swiss dealerships. Sectigo's own site carries it too.

Sales signal: these owners bought one certificate and added the badge themselves. Renewal reminders and hosting bundles fit them; enterprise certificate management doesn't.

A thin slice of Sectigo

The seal count says little about Sectigo's certificate business. Per Cloudflare Radar data in our certificate authority market share report, Sectigo issued 362 million final certificates in Q3 2026, 3.8% of the total. Against that, about two thousand badges is a rounding error. What the seal measures is the small set of buyers who want visitors to see their CA. Of the 2,134 domains, 1,316 served a Sectigo-issued certificate when we connected on 15 October. We couldn't read 426, and the other 392 served another CA's certificate, such as Let's Encrypt (165) or Google Trust Services (136), while Sectigo's verification page still answered for the host.

"Sectigo issues hundreds of millions of certificates a quarter, and its badge is live on about two thousand sites. Read this page as a list of seal users, not of Sectigo's customers." - Mehmet Suleyman, CEO & Co-founder at TechnologyChecker.io

Sales signal: if you sell against Sectigo, this is the brand-conscious corner of its base: sites that chose to advertise their CA in the footer.

Comodo, GeoTrust and the rest of the table

The TrustLogo is older than the Sectigo name. Comodo CA was carved out of Comodo Group and bought by Francisco Partners in October 2017, and it renamed itself Sectigo on 1 November 2018. Seals installed in the Comodo years load the same kind of script from secure.comodo.com, which still served it with a valid certificate on 28 October 2026; those badges are counted in the Comodo SSL row. The table around this page isn't like-for-like either. GlobalSign's 165,576 domains count a DNS record left by domain validation, and GeoTrust's seal hostnames no longer resolve. DigiCert's seal, at 1,766 domains after its own correction, is the only row cleaned the same way.

Sales signal: a site still carrying a Comodo badge hasn't touched its footer in years. That's a cleanup and migration conversation.

Stack and price

Across the 2,133 domains in the stack base, Google Analytics runs on 61.04% and WordPress on 33.05%, with Elementor on 7.45%. GoDaddy hosts 10.83% and Cloudflare sits in front of 14.81%. Consent banners are thin: CookieYes is the most common at 3.56%. Before our cut, 1,266 of the 4,212 TrustLogo domains served a Let's Encrypt certificate, the single largest destination for owners who left. Sectigo's certificate pages say a one-year single-domain DV certificate starts at $110, with warranties of $500,000 (DV), $1,000,000 (OV) and $1,750,000 (EV), and its knowledge base offers the dynamic TrustLogo free to SSL customers.

Sales signal: WordPress agencies and hosts serving small businesses will recognise these sites. A live seal tells them the owner chose a commercial CA and wants visitors to know it.

Key takeaways

1. 2,134 domains after 2,078 dead seals on sites without a Sectigo certificate were removed; 206 dead seals on Sectigo certificates stay in.

2. 54.79% of the seals we could test showed no credentials.

3. 61.51% of sized companies have 1 to 10 staff, and India and Argentina rank higher than on most web tools.

4. GeoTrust's seal hosts no longer resolve, so its badges are dead; Comodo-era badges still load their script from secure.comodo.com.

How to use this list

Filter on country and size, and re-check the seal before you call: click it and see whether Sectigo shows the site's certificate. For the full list of 2,134 Sectigo TrustLogo domains with company, size and stack data, explore TechnologyChecker.io.