Century 21 TheOne's tech stack
What does Century 21 TheOne use?
Century 21 TheOne (theone21.com) uses at least 17 tools we can see from public records, including Mailgun for email delivery, Enzuzo for security, OpenAI for AI and Microsoft 365 for email and documents. Last checked .
- Industry
- Real Estate
- Size
- 11–50 employees
- Based in
- Plattsburgh, United States
- Founded
- 1960
- Company page
- Tools found
- 17
- Categories
- 9
- Layers
- 4 of 5
- Last checked
- Nov 2026
Century 21 TheOne's stack, layer by layer
Of 17 tools, 12 came from website code, 2 from DNS verification records, 2 from email records and 1 from other records. Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Application
4 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Go-to-market
6 tools, how they find and keep customers
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Security & Compliance
Companies like Century 21 TheOne also use
Tools common among companies with a similar stack that we haven't found at Century 21 TheOne.
Companies with a stack like Century 21 TheOne's
Ranked by shared tools, with rare tools counting more.
LandVestReal Estate · 51–200 people14in common
Stifel TheatreMusic · 11–50 people6in common
de Novo MarketingMarketing and Advertising · 11–50 people10in common
Christina Cosmeceuticals ItalyCosmetics · 11–50 people8in common
Thompson Brothers Exterminating and WaterproofingEnvironmental Services · 11–50 people11in common
IthaqueEnvironmental Services · 11–50 people10in common
GovPathIT Services · 11–50 people5in common
Brill MediaMarketing and Advertising · 11–50 people10in common
More Real Estate companies
Other Real Estate companies we've checked.
Century 21 TheOne tech stack FAQ
What tools does Century 21 TheOne use?
As of November 2026, runsonwhat has found 17 tools at Century 21 TheOne (theone21.com) in public records. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics and Google Tag Manager. Go-to-market: Google Ads, Meta Pixel and Microsoft Ads. Company Ops: Microsoft 365, Google Workspace and reCAPTCHA. Last checked November 8, 2026.
What email provider does Century 21 TheOne use?
Century 21 TheOne uses Microsoft 365 for email and office software, alongside Google Workspace, according to runsonwhat (November 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on theone21.com. Microsoft 365 is used by 730,169 companies runsonwhat tracks.
What analytics tools does Century 21 TheOne use?
Century 21 TheOne uses Google Analytics for analytics, alongside Google Tag Manager, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on theone21.com. Google Analytics is used by 903,766 companies runsonwhat tracks.
Does Century 21 TheOne use jQuery?
Yes. runsonwhat found jQuery at Century 21 TheOne through jQuery code on theone21.com. jQuery is a Frontend tool used by 927,163 companies runsonwhat tracks.
Does Century 21 TheOne use AI tools?
Yes. runsonwhat has found OpenAI at Century 21 TheOne; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Century 21 TheOne may use more AI tools than these.
Which companies have a tech stack similar to Century 21 TheOne's?
The companies with the stacks most like Century 21 TheOne's are LandVest, Stifel Theatre, de Novo Marketing and Christina Cosmeceuticals Italy, according to runsonwhat (November 2026). Each shares 6 to 14 tools with Century 21 TheOne, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Century 21 TheOne uses?
runsonwhat reads public records only. Of the 17 tools at Century 21 TheOne, 12 were found through code on theone21.com, 2 through DNS records, 2 through email records and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and theone21.com about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.