
Cold Turkey
Stay Focused
Freedom.to
FocusMe
one sec
LeechBlock
Ashdeck
BlockSite is an extension, which automagically blocks websites of your choice.

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Based on our record, BlockSite seems to be a lot more popular than Cert Decoder. While we know about 19 links to BlockSite, we've tracked only 1 mention of Cert Decoder.
Website, pricing, platforms and company facts side by side.
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| Website | blocksite.co | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of BlockSite yet.
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
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.


No analysis of BlockSite yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How to Block Distracting Apps & Websites (BlockSite Review)
More videos
No Cert Decoder videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing BlockSite and Cert Decoder.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Share your experience with using BlockSite and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Using Browser Extensions: Browser extensions like https://blocksite.co/ and https://www.webblockerextension.com/ allow for easy and customizable website blocking. - Source: dev.to / over 2 years ago
I also installed the BlockSite app which lets me block particular sites that I usually gravitate to and trigger my rabbit hole journey. I had to install Brave for this as it doesn't work with lesser known minimalist browsers. It also... Source: over 3 years ago
For anyone like me who might even just open the site out of habbit, I have a plugin I've used before called BlockSite. Source: over 3 years ago
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
When comparing BlockSite and Cert Decoder, you can also consider the following products.

Cold Turkey is a free productivity program that you can use to temporarily block distractions so that you can get your work done!
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More suitable with Google Chrome, this service enables you ensure you do not waste precious time on updating Facebook status or chatting with people.
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Freedom is a productivity hack that lets you block apps, websites or the entire Internet on iPhones, iPads, Windows and Mac computers.
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one sec uses Shortcut automation in order to empower you to spend more time in the real world.
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LeechBlock is an extension for Firefox and Chrome that allows users to block time-wasting sites.
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