KRUPINOV.COM Technology Profile

Sender ID

Sender ID is an anti-spoofing email framework heavily based on SPF.

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HSTS

Forces browsers to only communicate with the site using HTTPS.

View 5,919,739 websites using HSTS →

Nginx

View 5,747,584 websites using Nginx →

HTTP/3

View 7,289,673 websites using HTTP/3 →