Hardenize
Security Headers
Mozilla Observatory
HTTP Observatory
Cloud Cultivator
CryptCheck
ImmuniWeb
This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.

HTTPS Everywhere
HTTPZ
SSL Enforcer
The Tor Browser
HTTPS Only
HTTPS Always
ForceTLS
Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts...

Which is more popular?
Based on our record, Qualys SSL Server Test should be more popular than Smart HTTPS. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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QSS
Qualys SSL Server Test
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| Website | ssllabs.com | mybrowseraddon.com |
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What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Qualys SSL Server Test and Smart HTTPS. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Check it at https://ssllabs.com/ssltest and it will tell you what’s wrong with the chain. Source: over 3 years ago
Didn’t know that one. I generally use ssl server test at https://ssllabs.com/ssltest. Source: over 3 years ago
As far as the SSL error, your browser does not consider the certificate to be valid. It looks like you’re trying to use Let’s Encrypt (based on your .well-known/acme-challenge location. You’ll also need to provide the intermediary... Source: over 3 years ago
Smart HTTPS, site This tries to send you to https sites instead of http sites. Using http sites makes you venerable to man in the middle attacks. (dont use http on public wifis if possible). Source: over 4 years ago
I'd recommend using Smart HTTPS which automatically makes your site's HTTPS if it can offer it so it will reduce these situations. Here's the site where you can choose whichever browser you use. https://mybrowseraddon.com/smart-https.html. Source: over 4 years ago
When comparing Qualys SSL Server Test and Smart HTTPS, you can also consider the following products.

Hardenize provides a comprehensive and free assessment of web site network and security configuration.
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Chrome extension that encrypts and secures your browser
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Quickly and easily assess the security of your HTTP response headers.
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HTTPZ is meant to be unobtrusive and lightweight.
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The Mozilla Observatory is a project designed to help developers, system administrators, and security professionals configure their sites safely and securely.
Compare Mozilla Observatory to Qualys SSL Server Test or Smart HTTPS:

SSL Enforcer - Force SSL/TLS encryption for any browser or app. Block all unsecure connections.
Compare SSL Enforcer to Qualys SSL Server Test or Smart HTTPS: