Technology · Authentication
182 websites in the live index use Apereo CAS as of October 2026. Download the full list of Apereo CAS websites with website, company, country and language.
SourceAs of October 29, 2026, TechLeads detects Apereo CAS on 182 websites: 0.03% of Authentication detections, the 11th most-used of 14 Authentication technologies we track.
Sample results for Apereo CAS. Description is shown under each title.
| Rank | Website | Title · Description | Company | Country | Language |
|---|---|---|---|---|---|
| #500,000 | cas-dia.com | CAS – Central Authentication Service | - | - | - |
| #1,000,000 | hundavefur.is | HRFI | - | - | - |
| #50,000,000 | velabodia.com | CAS – Central Authentication Service | - | - | - |
| #4 | emssanarlazos.org | Login - CAS – Central Authentication Service | - | - | en |
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The most-used Authentication technologies in the TechLeads index, by number of websites. Apereo CAS accounts for 0.03% of Authentication detections (182 websites).
| No. | Technology | Websites | Share of Authentication | Relative size |
|---|---|---|---|---|
| 01 | Google Sign-in | 417,713 | 73.8% | |
| 02 | Linkedin Sign-in | 56,113 | 9.9% | |
| 03 | NextAuth.js | 41,123 | 7.3% | |
| 04 | Apple Sign-in | 32,522 | 5.7% | |
| 05 | Super Socializer | 10,303 | 1.8% | |
| 06 |
TechLeads scans public websites and identifies Apereo CAS from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 29, 2026. Counts only include websites we have scanned, so they can differ from other providers.
The TechLeads live index currently lists 182 websites using Apereo CAS. Open the sample table on this page or download the lead list.
The chart on this page is monthly HTTP Archive crawl detections for Apereo CAS, compared with other Authentication technologies. It is not the TechLeads live index.
In the same HTTP Archive category, Apereo CAS is charted against Facebook Login, Google Sign-in, NextAuth.js, Apple Sign-in, Linkedin Sign-in. Live-index co-occurrence on this page is a separate signal.
Companies and websites using Apereo CAS in the TechLeads index include cas-dia.com, hundavefur.is, velabodia.com, emssanarlazos.org. The full list of 182 websites, with company name, country and language, is available as a CSV export.
By number of websites in the TechLeads index, the most-used Authentication alternatives to Apereo CAS are Google Sign-in (417,713), Linkedin Sign-in (56,113), NextAuth.js (41,123).
TechLeads scans public websites and matches Apereo CAS by signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily.
| 3,315 |
| 0.59% |
| 07 | SimpleSAMLphp | 2,064 | 0.36% |
|---|
| 08 | Microsoft Authentication | 1,032 | 0.18% |
|---|
Yes. A one-time Apereo CAS dataset is $29 as a CSV. The Growth plan ($79/mo) covers 10 technologies with recurring exports, alerts and API access.
Top-ranked sites on Apereo CASRank
Monthly detections of Apereo CAS in the HTTP Archive crawl. This is historical crawl coverage, not the TechLeads live website index.
Same HTTP Archive category (Authentication), not the whole web. Toggle competitors on or off.
Optional rank bands from the crawl (top 1k through long tail). Missing months are crawl gaps, not uninstalls.
Technologies most frequently detected on the same websites as Apereo CAS. Counts are websites in the live index.
Distribution of websites using Apereo CAS across countries in the TechLeads database.
| Country | Sites | Relative size |
|---|---|---|
| France (FR) | 2 | |
| United Kingdom (GB) | 1 | |
| Canada (CA) | 1 |
Sites where we first detected Apereo CAS, by week (UTC, weeks start Monday). These are newly detected sites, and the counts follow our discovery coverage.
6
sites newly detected in the last 12 weeks
Apereo CAS is an open-source authentication protocol, developed as a Java server component. Provides support for a wide range of authentication protocols and features.
Our comprehensive database contains 182 websites using Apereo CAS, making it the most complete Apereo CAS sites list available. This Apereo CAS customer websites directory helps businesses detect websites using Apereo CAS and identify potential leads.
The largest concentrations of Apereo CAS websites are in FR, GB, CA, based on our indexed country data.
Websites using Apereo CAS commonly also use Java, PHP, jQuery, HSTS, jQuery UI — reflecting typical Apereo CAS technology stacks.
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