
Mozilla Observatory
Hardenize
Qualys SSL Server Test
HTTP Observatory
MxToolBox
Sucuri Security Scanner
Snyk
Quickly and easily assess the security of your HTTP response headers.

Mainstack enables entrepreneurs with commerce and global payment solutions to showcase and get paid for their work and services, grow revenue, and manage customers - all in one place.
Which is more popular?
Based on our record, Security Headers seems to be more popular. It has been mentioned 70 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | securityheaders.com | mainstack.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


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Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
HTTP Security Headers | Part 01
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How often each product is chosen within a category, 0–100% relative to the other.


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Recommendations tracked on public social media and blogs since March 2021.


Since we were back in the security settings anyway, Claude and I went through the whole guide: added headers, set up CSP with no inline scripts, no-store. The securityheaders.com score went from F to A+. - Source: dev.to / about 21 hours ago
Check: Go to securityheaders.com and enter your URL. A grade below B means you're missing important ones. - Source: dev.to / 4 months ago
The curl above is the fastest check; all four lines should come back. In a browser, DevTools, Network tab, click the document request, read Response Headers. For a letter grade, securityheaders.com scores you against a known rubric. One... - Source: dev.to / 5 months ago
Tracking Mainstack.co since Nov 2024.
When comparing Security Headers and Mainstack.co, you can also consider the following products.

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Hardenize provides a comprehensive and free assessment of web site network and security configuration.
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This free online service performs a deep analysis of the configuration of any SSL web server on the public Internet.
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Developed by Mozilla, the HTTP Observatory performs an in-depth assessment of a site’s HTTP headers and other key security configurations.
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All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool.
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Sucuri Security Scanner is a web-based tool that is used to protect the website from intruders and hackers.
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