
DigiCert CertCentral
Certify The Web
GuardSSL.info
Certmon.net
Better Uptime
Certbot
ManageEngine Key Manager Plus
CertKit SSL Certificate Management automates the discovery, lifecycle, distribution, and monitoring of PKI Certificates.

Brave
Google Chrome
Mozilla Firefox
Vivaldi
Tor Browser
Safari
Chromium
Opera is a browser with innovative features, speed and security.

Which is more popular?
Based on our record, Opera seems to be more popular. It has been mentioned 23 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | certkit.io | opera.com |
| Pricing | — | |
| Platforms | — | |
| Company | Startup from the United States · 1 - 9 employees · 2025 | Startup from Norway |
| Listed in |
In their own words, as submitted to SaaSHub.


Finally, a GUI for certificate management. No more checking if CertBot actually ran. CertKit gives you one dashboard to see every cert, every renewal, every domain—before they expire and ruin your weekend. Built after the third production outage from a failed ACME challenge that nobody noticed....
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Why this product is good
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Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.


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Both Opera and Brave support a wide range of extensions, but with Opera, you’ll require fewer third-party extensions as most features are in-built.
Opera VPN: Opera VPN is a premium ad blocker that also includes a VPN service. It costs $3.99 per month or $39.99 per year.
Opera is the fifth most popular web browser; it currently holds 2.4% of the web browser market share. It was released in 1995 by Opera. So, it is one of the oldest web browsers which is still actively developed. The...
Recommendations tracked on public social media and blogs since March 2021.


Tracking CertKit.io since Sep 2025.
This is not opera.com it's "api2 dot com" so it's a malware site posing as an opera one by including opera in its name. I had a popup like this. It opened every time I opened the browser. Turned out it was coming from a video downloader... Source: about 3 years ago
The opera.com domain is banned where I live but I still want to download the browser without a VPN (because those are also banned). Is there a torrent link or an alternative/mirror link where I can download the latest Opera One release?... Source: about 3 years ago
Apparently it "urgently needed to be removed off the network" (bullshit, you could've blocked opera.com, dumbass) I don't see why its so bad to have one kid with an unmanaged browser, like seeing "your browser is managed by your... Source: over 3 years ago
When comparing CertKit.io and Opera, you can also consider the following products.

News about global issues in digital security. Updates about DigiCert innovations in SSL, IoT and PKI.
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Certify The Web provides a simple way to use Let's Encrypt and other ACME CAs on Windows and IIS, with an easy to use UI. Advanced users can use powerful Deployment Tasks and custom scripting for more complex automation scenarios.
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Google Chrome is a fast, secure, and free web browser, built for the modern web. Give it a try on your desktop today.
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Instant SSL certificate checker with 1-second results. No registration required. Monitor SSL expiry 24/7 with automated alerts via Slack, Discord, Telegram & Feishu. Free forever.
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Get the browsers that put your privacy first — and always have
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