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 5.7.31 since 2025-12-13)

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

Local repository SHA256:
85aaebb61a8aa52cd574b1df6a6a38752d3c151e56ce29a1aa2c8721717b73fe

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 5.7.0 Beta)

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

Local repository SHA256:
7A34FA25DC2A3FE06912FB4C1894A578EBAA628CD35BE47F8B7850E00C40E36D

Opera add-on (Version 5.7.0 Beta)

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

Local repository SHA256:
cf0ceec4dfb673cee448a99d4aae57e785588da4f95bbf0c8b6bc727fdadd2c9

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

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

Local repository SHA256:
9a15e11c62610a24b797fe521de7a3d1e625501c912bbc0dcebace16d80cbb8c