CheckMyHTTPS

Check your secured WEB flows

CheckMyHTTPS is a method allowing the verification (check) that your secured web connections ('HTTPS' protocol) are not intercepted (neither decrypted, nor listened, nor modified). We have created several simple tools that use this method (WEB browser add-ons, smartphone apps, etc.).
These tools display icons with the following appearance:

: The HTTPS connection isn't intercepted.
: The HTTPS connection is intercepted.
: The verification is impossible (check_server unreachable, web site in a local network, etc.).
: The verification is in progress.

Download

Firefox add-on (version 5.7.33 since 2026-03-21)

Source code (developer) Official repository (mozilla.org) Local repository

Local repository SHA256:
a14d7f5b187eab6b4e8d17f5d5c58867e74ae723e720b7ef52ad424a76c6aa04

Chrome add-on (version 5.7.3 since 2025-12-13)

Source code (developer) Official repository (chrome web store) Local repository

Local repository SHA256:
39606366d16326ba6bea1671764ba48c9c7799b2db479a597de51542cbc9355f

Edge add-on (version 5.7.3 since 2026-01-27)

Source code (developer) Official repository (Microsoft Edge Extensions) Local repository

Local repository SHA256:
4f7c1d420012ceda15ea5db4178f16487001f5aa41e4642796d8c1712d4e413d

Opera add-on (Version 5.7.3 since 2026-03-13)

Source code (developer) Official repository (Opera addons) Local repository

Local repository SHA256:
15963199d762755d386fd7f68a447e18633284c8152d0fc9fac7454ba201b21b

Android application (version 5.7.2 since 2025-06-27)

Source code (developer) Official repository (Google Play Store) Local repository

Local repository SHA256:
9a15e11c62610a24b797fe521de7a3d1e625501c912bbc0dcebace16d80cbb8c