Altcha is a spam and abuse protection solution for websites and apps, offering a privacy-friendly Captcha and other tools designed with GDPR compliance to provide strong security while safeguarding user privacy.

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Companies

354

Top Country

DE

Top Industry

Consulting

Adoption Insights

Altcha is used by 354 companies in our database, representing approximately 0.01% of all tracked websites. The most common industry using Altcha is Consulting, and adoption is strongest in DE.

Top Countries Using Altcha

DE71 companies
US65 companies
FR49 companies
GB45 companies
TH27 companies
AU16 companies
FI13 companies
BE10 companies
SE8 companies
ES8 companies

Top Industries Using Altcha

Consulting28 companies
Advertising18 companies
Health Care15 companies
Advice13 companies
Manufacturing10 companies
Automotive10 companies
Construction10 companies
Industrial9 companies
Communities8 companies
Information Technology8 companies

Companies Using Altcha

CompanyDomain
Alediaaledia.com
GravitHygravithy.eu
MailInBlackmailinblack.com
Farmdrivefarmdrive.io
Nelisanelisa.com
Neo PLMneoplm.com
Ambarellaambarella.com
DigitalSharkdigitalshark.org
Krintz Lawn Carekrintzlawncare.com
Agiloxagilox.net

How We Detect Altcha

The Web Radar detects Altcha by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →

Frequently Asked Questions

What is Altcha?+

Altcha is a spam and abuse protection solution for websites and apps, offering a privacy-friendly Captcha and other tools designed with GDPR compliance to provide strong security while safeguarding user privacy.

How many companies use Altcha?+

354 companies in our database use Altcha, representing approximately 0.01% of all tracked websites.

What industries use Altcha the most?+

The top industries using Altcha are Consulting, Advertising, Health Care.

What countries use Altcha the most?+

The top countries using Altcha are DE, US, FR.

Is Altcha popular?+

Altcha is used by 354 companies, making it a notable Security technology based on adoption across our tracked websites.

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Data last updated: June 2026