www.jubii.dk
IPv6: no public AAAA record — the domain is reachable over IPv4 only.
Grade Breakdown
Protocol Support 95%
Key Exchange 90%
Cipher Strength 100%
Certificate 100%
Site Access: HTTP and HTTPS
What a visitor typing each address gets, and where its redirects end (up to 5 are followed), as seen from our scanner.
| Host | http:// (port 80) | https:// (port 443) |
|---|---|---|
| www.jubii.dk | 301 → https://www.jubii.dk/ → 200 OK | 200 OK |
| jubii.dk | 301 → https://jubii.dk/ → … → https://www.jubii.dk/ → 200 OK | 301 → https://www.jubii.dk/ → 200 OK |
- http://www.jubii.dk redirects to HTTPS.
Certificate Identity
| Common Name | www.jubii.dk |
| Alt Names | *.jubii.dk |
| Issuer | CN=YR1, O=Let's Encrypt, C=US |
| Validity | 2026-09-16 to 2026-12-15 (35 days remaining) |
| Key | RSA 2048 bits (sha256RSA) |
| Serial Number | 068F43822707D8AEBACC754CC5DF3B8CBCC1 |
| SHA256 Fingerprint | fa309e7640aa8e7fcda63858f45544e03596961e9be33664ad229c8f98aff5a8 |
| Pin SHA256 | W5MeLGHMKK9IgFpGjlpj9uopucpT2ru2qTEhdOOaVC8= |
Certificate Properties
| Type | DV |
| Cert Transparency | Yes (SCT) |
| OCSP Must Staple | No |
| Revocation | Good (not revoked) CRL: http://yr1.c.lencr.org/66.crl No OCSP responder — revocation is published via CRL only (as CA/B Forum rules now allow). |
| DNS CAA | Yes (configured) 128 iodef "mailto:[email protected]" 128 issue "letsencrypt.org" |
| Trusted By | Yes Mozilla · Apple · Android · Java · Windows |
| Name Match | Yes |
| Validity Period | 90 days (maximum 200 days for certificates issued then) |
| Chain Issues | None |
Protocol Configuration
Supported Protocols
TLS 1.3
TLS 1.2
TLS 1.1
TLS 1.0
SSL 3
SSL 2
Negotiated Cipher
TLS_AES_256_GCM_SHA384
Protocol Details
| Connection | |
| ALPN | h2 http/1.1 |
| SNI Required | Yes |
| Supported Named Groups | x25519 secp256r1 (server preference order) |
| Post-Quantum Key Exchange | No (no hybrid ML-KEM group such as X25519MLKEM768) |
| HTTP/3 (QUIC) | Yes (advertised) |
| Encrypted Client Hello | No |
| Security Features | |
| Forward Secrecy | Yes (ECDHE / DHE) |
| Downgrade Prevention | Yes (legacy TLS disabled) |
| Secure Renegotiation | Supported (RFC 5746) |
| Extended Master Secret | Yes (RFC 7627) |
| OCSP Stapling | No (certificate has no OCSP responder) |
| HSTS | Yes 1 year · includeSubDomains · preload |
| HSTS Preloading | Not preloadedSubmit → |
| Security Checks | |
| BEAST attack | Mitigated |
| POODLE (SSLv3) | No (SSL 3 not supported) |
| POODLE (TLS) | No |
| RC4 | No |
| SSL/TLS Compression | No (not supported by .NET TLS stack) |
| Heartbleed | Not tested |
Cipher Suite Analysis
| Cipher Suite | Hex | Key Exchange | FS | Bits | Strength |
|---|---|---|---|---|---|
| # TLS 1.3 (server-preferred order) | |||||
| TLS_AES_128_GCM_SHA256 | 0x1301 | ECDHE | FS | 128 | Secure |
| TLS_AES_256_GCM_SHA384 | 0x1302 | ECDHE | FS | 256 | Secure |
| TLS_CHACHA20_POLY1305_SHA256 | 0x1303 | ECDHE | FS | 256 | Secure |
| # TLS 1.2 (server-preferred order) | |||||
| TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | 0xC02F | ECDHE | FS | 128 | Secure |
| TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 | 0xCCA8 | ECDHE | FS | 256 | Secure |
| TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 | 0xC030 | ECDHE | FS | 256 | Secure |
Handshake Simulation
| Client | Protocol | Cipher Suite | Result |
|---|---|---|---|
| Chrome 120 / Win 11 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Chrome 80 / Win 10 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Firefox 115 / Win 10 | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| iOS 17 / Safari | TLS 1.3 | TLS_CHACHA20_POLY1305_SHA256 | Success |
| macOS 14 / Safari | TLS 1.3 | TLS_AES_256_GCM_SHA384 | Success |
| Android 14 | TLS 1.3 | TLS_AES_128_GCM_SHA256 | Success |
| Chrome 69 / Win 7 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Chrome 49 / XP SP3 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| IE 11 / Win 10 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| IE 11 / Win 7 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 9.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 7.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 5.0 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 4.4.2 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Java 11 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Java 8u121 | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 | Success |
| Android 4.0.4 | - | - | No |
| Android 4.1.1 | - | - | No |
| Baidu Jan 2015 | - | - | No |
| Java 6 | - | - | No |
* Simulated based on server's supported protocols and cipher configuration.
Trust Chain Architecture
End-Entity Certificate
CN=*.jubii.dk (Issuer: CN=YR1, O=Let's Encrypt, C=US)
Intermediate CA
CN=YR1, O=Let's Encrypt, C=US (Issuer: CN=Root YR, O=ISRG, C=US)
Intermediate CA
CN=Root YR, O=ISRG, C=US (Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=US)
Root Certificate
CN=ISRG Root X1, O=Internet Security Research Group, C=US (Issuer: CN=ISRG Root X1, O=Internet Security Research Group, C=US)
TLS History & Relations
Everything our scans have seen for www.jubii.dk, first seen 2026-08-31; current certificate since 2026-10-23.
Certificates served
| Certificate (SHA-256) | Issuer | Valid | Served |
|---|---|---|---|
| fa309e7640aa8e7f… current | YR1 | 2026-09-16 → 2026-12-15 | 2026-10-23 |
Addresses
| Address | Certificate | Seen |
|---|---|---|
| 68.183.243.94 | fa309e7640aa8e7f… | 2026-10-23 |
TLS history (a row per change; repeated checks only extend it)
| Since → last checked (UTC) | Grade | TLS | Certificates | Addresses |
|---|---|---|---|---|
| 2026-10-23 11:10 | A+ | TLS 1.3 | fa309e7640aa8e7f… | 68.183.243.94 |