SSL Verification Bypassed

The server's SSL certificate could not be verified. The inspection was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for *.caldav.fastmail.com, *.carddav.fastmail.com, *.fastmail.com, fastmail.com, not for mail.d10.dev

favicon
Cached · just now
UP

HTTP Status

200

Ping

5 ms

Technologies

3

Technologies Detected

Infrastructure & Network (2)

Email Provider
Fastmail logo
Fastmail

Fastmail is a privacy-focused email service known for its fast performance, excellent search capabilities, and strong privacy protections.

Web Server
Nginx logo
Nginx

Nginx is a high-performance, open-source web server and reverse proxy server.

SSL & Certificates (1)

Certificate Authority
Let's Encrypt logo
Let's Encrypt

Let's Encrypt is a free, automated, and open certificate authority run by the Internet Security Research Group (ISRG).

Metadata & SEO

Title
Fastmail
Description
Use your username and password to log in to your Fastmail account to access your email.
Viewport
minimum-scale=1.0, maximum-scale=1.0, initial-scale=1.0, user-scalable=no, viewport-fit=cover, interactive-widget=resizes-content

SSL/TLS Certificate

View Full SSL Report
Issued By
C=US, O=Let's Encrypt, CN=R12
Security Score
95 /100

Social Media Cards

OpenGraph (5 properties)

Type
website
Description
Use your username and password to log in to your Fastmail account to access your email.
Title
Log in | Fastmail
Image
https://app.fastmail.com/static/images/og-header-image.png
Url
https://app.fastmail.com/login/

Network & Hosting

View DNS Records
Fastmail
Reverse DNS: mail.fastmail.com
Inspected on January 15, 2026 at 20:32 UTC