- Issuer
- Let's Encrypt
- Max TLS
- TLS1.3
- Cipher
- ECDHE-ECDSA-AES256-GCM-SHA384
- Expires
- 11/24/2026 ( 21 d)
- HSTS
- Disabled
- OCSP Stapling
- Disabled
- Last scanned
- 9/9/2026, 8:39:16 PM
Report summary
scientific-programs.science currently holds an SSL grade of A (100/100) from CertH TLS health monitoring. The site supports TLS1.3, TLS1.2, does not enable HSTS, and its certificate is issued by Let's Encrypt — 21 days left on the certificate. CertH records daily TLS handshake probes into an auditable certificate health trend.
Good — Solid security with only minor issues — e.g. no HSTS preload or not fully leveraging TLS 1.3. The mainstream recommended grade.
scientific-programs.science scores higher than 79% of the 12,267 sites we grade.
Last scanned 55 days ago — this data may be stale
Full certificate & config details
- Common Name
- scientific-programs.science
- Key
- ec 256bit
- Sig Hash
- SHA-384
- SAN
- scientific-programs.science
- Fingerprint
- 7497f7c59b12fcbd0a41e3bb960b12f935ba54cdde5381ed35254f6d3a6b095f
What’s working
- TLS 1.3 enabled
- Complete certificate chain
- No legacy TLS or weak ciphers
Score trend
Recent history
| Time | Grade | Score | Issuer |
|---|---|---|---|
| 9/9/2026, 8:39:16 PM | A | 100 | Let's Encrypt |
| 9/8/2026, 6:29:51 PM | B | 87 | Let's Encrypt |
Score change insights · Last 90 days
Net change ↑ +13-
↑
9/9/2026 +13 B → AConfig scoring adjustment
FAQ
When does scientific-programs.science’s certificate expire?
scientific-programs.science’s certificate expires on 11/24/2026, in 21 days, issued by Let's Encrypt.
Is scientific-programs.science’s TLS configuration secure?
scientific-programs.science currently scores A (100/100). It negotiates TLS1.3, TLS1.2 and does not enable HSTS.
Why did scientific-programs.science’s score change?
9/9/2026: +13 points — Config scoring adjustment