Tool for scanning websites and checking their security.
- Scan top 1 million websites from Alexa, Majestic, Quantcast and Umbrella
- Document the web security by looking at:
- HTTPS usage (including redirects)
- HSTS usage (including preloaded in browsers)
- OSCP stapling usage
- Certificate Transparency (CT)
- Other security headers/policies
- TLS versions
- Session resumption availability
- Public key encryption and signing algorithms
- Symmetric key encryption algorithms and hash-functions
- Key sizes and modes
- Certificate validity
- Is the CA trusted by mainstream browsers?
- Valid length (3, 6, 9, 12, 15 months etc, not 40 years...)
- Look at trends:
- Shorter certificate lengths?
- CA popularity?
- Increased HTTPS and HSTS usage?
- Increased TLS 1.3 usage?
- Increased OSCP/CT usage?
- Larger keys?
- ECDH/ECDSA vs RSA vs DH/DSA?
- Compare with other scans like:
This is what we did:
- Scanned Alexa top 500 most popular websites in 9 countries of interest
- Documented the web security by looking at:
- HTTPS usage
- HSTS usage
- Encryption and signing algorithms
- Key sizes
- Certificate validity (naive)
- Published a short-paper and presentation at NISK 2018.
Take a look at the Python-code and raw data.
- 11.02.19: Updated project description for v2
- 23.01.19: Uploaded top 1 million websites from Alexa, Majestic, Quantcast and Umbrella
- 22.01.19: All previous data is archived. Ready to start v2 of the project.
- 19.09.18: Uploaded presentation at NISK 2018 as PDF, with LaTeX-source and pictures
- 17.09.18: Improved documentation of code and created new issues for further improvement
- 08.08.18: Uploaded short paper, data from previous scans and relevant resources
- 08.08.18: Uploaded all code to scan and obtain raw data
- Download and install
- Fork and download this repository
- Use command line and
cdto your local version of the repository
make runto run a new scan