OCSP Evaluator

Is the certificate of this site revoked? OCSP Evaluator checks it directly from your browser with OCSP and CRL, at the authority that issued it, with verified response signatures and no third-party server.

Version 1.0 is a complete rewrite: the old version sent the visited domain to an external API, the new one does everything locally in Firefox (desktop and Android).

Install from Mozilla Add-ons: https://addons.mozilla.org/firefox/addon/ocsp-evaluator/

Features

Revocation check with OCSP and CRL fallback on the real certificate chain, signatures verified
Grade A+ to F, expiry, issuer, DV/OV/EV, TLS version and key algorithm
Revoked site: warn, block the page, or strict mode
Monitor: your domains rechecked every 12 hours with notifications
History, chain and report export, copy certificate as PEM, check any site on demand
No third-party server, no statistics. Light and dark theme, English and Italian

Project Samples

Valid site: grade A+, OCSP verified at the issuing authority

Revoked certificate detected (dark theme)

Block page for a site with a revoked certificate

Monitor: your domains rechecked every 12 hours

Project Activity

See All Activity >

License

Apache License V2.0

Follow OCSP Evaluator

OCSP Evaluator Web Site

Other Useful Business Software

Host LLMs in Production With On-Demand GPUs

NVIDIA L4 GPUs. 5-second cold starts. Scale to zero when idle.

Deploy your model, get an endpoint, pay only for compute time. No GPU provisioning or infrastructure management required.

Start Free

Rate This Project

User Reviews

Be the first to post a review of OCSP Evaluator!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Languages

English

Intended Audience

Advanced End Users, Developers, End Users/Desktop

User Interface

Web-based

Programming Language

JavaScript

Related Categories

JavaScript Browser Extensions and Plugins

Registered

2021-07-05

Similar Business Software

Kasm Workspaces

Kasm Workspaces streams your workplace environment directly to your web browser…on any device and from any location. Kasm uses our high-performance streaming and secure isolation technology to provide web-native Desktop as a Service (DaaS), application streaming, and secure/private web...

See Software for Kasm Workspaces
Wave Browser

Wave Browser is an efficient, eco-conscious browser that creates a cleaner, more organized, and more meaningful online experience while helping remove ocean plastic through its partnership with 4ocean. Built on the trusted Chromium foundation, Wave Browser brings essential tools directly into...

See Software for Wave Browser
Shift

Shift is a fully customizable browser where you can drag and drop apps, bars, and controls to create a central hub that adapts to however you work. Integrate 1,500+ apps, swap instantly between Spaces for work, side hustles or personal browsing, and stay logged into multiple accounts at once....

See Software for Shift
HERE Enterprise Browser

Built through collaboration with global banks, HERE Enterprise Browser provides enterprise security, workforce productivity and seamless integration of enterprise AI. HERE’s Chromium-based, zero-trust security model includes integration with Microsoft Entra and other IDPs, app access controls,...

See Software for HERE Enterprise Browser
Cronos Browser

Cronos Browser v11.1.0 is a decentralized, privacy-first browser built on the AVALW Protocol. It operates with Zero Cloud dependency—no IP logging, data collection, or hidden telemetry. The UIKI AI assistant runs 100% offline, providing page summaries and accurate parental controls without data...

See Software for Cronos Browser
Mozilla Firefox

Mozilla Firefox is a free, open-source web browser developed by the Mozilla Foundation, a non-profit organization dedicated to internet health and privacy. Designed to prioritize user privacy and security, Firefox offers features like Total Cookie Protection, which provides outstanding privacy...

See Software for Mozilla Firefox