SSL Report:
mail.modulcentr.ru
(31.133.51.146)
Assessed on: Wed, 21 Jan 2026 11:34:30 UTC
| Clear cache
Summary
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Certificate
Protocol Support
Key Exchange
Cipher Strength
Visit our documentation page
for more information, configuration guides, and books. Known issues are documented
here.
This server does not support TLS 1.3. MORE INFO »
Certificate #1: RSA 3072 bits (SHA256withRSA)
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Server Key and Certificate #1
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| Subject |
modulcentr.ru
Fingerprint SHA256: ec20c9e31e99eb7a7ea32b6207fa1f0a3c1161277749a8fc3a20353ad8b071bd Pin SHA256: Se5QcpAKd2S2S+OycJu9p0kQMvjoIGHtihyKuj9ohog= |
| Common names | modulcentr.ru |
| Alternative names | autodiscover.modulcentr.ru mail.modulcentr.ru modulcentr.ru |
| Serial Number | 052a3f7cb429c3e5676a897c8efaef2957a0 |
| Valid from | Tue, 20 Jan 2026 16:21:41 UTC |
| Valid until | Mon, 20 Apr 2026 16:21:40 UTC (expires in 2 months and 30 days) |
| Key | RSA 3072 bits (e 65537) |
| Weak key (Debian) | No |
| Issuer | R12
AIA: http://r12.i.lencr.org/ |
| Signature algorithm | SHA256withRSA |
| Extended Validation | No |
| Certificate Transparency | Yes (certificate) |
| OCSP Must Staple | No |
| Revocation information |
CRL CRL: http://r12.c.lencr.org/33.crl |
| Revocation status | Good (not revoked) |
| DNS CAA | No (more info) |
| Trusted | Yes
Mozilla Apple Android Java Windows |
Certification Paths |
Configuration
| Protocols | |
| TLS 1.3 | No |
| TLS 1.2 | Yes |
| TLS 1.1 | No |
| TLS 1.0 | No |
| SSL 3 | No |
| SSL 2 | No |
| Cipher Suites | ||
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# TLS 1.2 (suites in server-preferred order)
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TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028)
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
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256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (0xc027)
ECDH x25519 (eq. 3072 bits RSA) FS
WEAK
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128 | |
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)
ECDH secp384r1 (eq. 7680 bits RSA) FS
WEAK
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256 | |
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)
ECDH x25519 (eq. 3072 bits RSA) FS
WEAK
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128 | |
TLS_RSA_WITH_AES_256_GCM_SHA384 (0x9d)
WEAK
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256 | |
TLS_RSA_WITH_AES_128_GCM_SHA256 (0x9c)
WEAK
|
128 | |
TLS_RSA_WITH_AES_256_CBC_SHA256 (0x3d)
WEAK
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256 | |
TLS_RSA_WITH_AES_128_CBC_SHA256 (0x3c)
WEAK
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128 | |
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)
WEAK
|
256 | |
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)
WEAK
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128 | |
| Handshake Simulation | |||
| Android 4.4.2 | RSA 3072 (SHA256) | TLS 1.2 | TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 ECDH secp256r1 FS |
| Android 5.0.0 |
Server closed connection |
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| Android 6.0 |
Server closed connection |
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| Android 7.0 |
Server closed connection |
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| Android 8.0 |
Server closed connection |
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| Android 8.1 |
Server closed connection |
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| Android 9.0 |
Server closed connection |
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| BingPreview Jan 2015 |
Server closed connection |
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| Chrome 49 / XP SP3 |
Server closed connection |
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| Chrome 69 / Win 7 R |
Server closed connection |
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| Chrome 70 / Win 10 |
Server closed connection |
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| Chrome 80 / Win 10 R |
Server closed connection |
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| Firefox 31.3.0 ESR / Win 7 |
Server closed connection |
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| Firefox 47 / Win 7 R |
Server closed connection |
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| Firefox 49 / XP SP3 |
Server closed connection |
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| Firefox 62 / Win 7 R |
Server closed connection |
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| Firefox 73 / Win 10 R |
Server closed connection |
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| Googlebot Feb 2018 |
Server closed connection |
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| IE 11 / Win 7 R |
Server closed connection |
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| IE 11 / Win 8.1 R |
Server closed connection |
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| IE 11 / Win Phone 8.1 R |
Server closed connection |
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| IE 11 / Win Phone 8.1 Update R |
Server closed connection |
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| IE 11 / Win 10 R |
Server closed connection |
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| Edge 15 / Win 10 R |
Server closed connection |
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| Edge 16 / Win 10 R |
Server closed connection |
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| Edge 18 / Win 10 R |
Server closed connection |
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| Edge 13 / Win Phone 10 R |
Server closed connection |
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| Java 8u161 |
Server closed connection |
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| Java 11.0.3 |
Server closed connection |
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| Java 12.0.1 |
Server closed connection |
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| OpenSSL 1.0.1l R |
Server closed connection |
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| OpenSSL 1.0.2s R |
Server closed connection |
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| OpenSSL 1.1.0k R |
Server closed connection |
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| OpenSSL 1.1.1c R |
Server closed connection |
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| Safari 6 / iOS 6.0.1 |
Server closed connection |
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| Safari 7 / iOS 7.1 R |
Server closed connection |
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| Safari 7 / OS X 10.9 R |
Server closed connection |
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| Safari 8 / iOS 8.4 R |
Server closed connection |
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| Safari 8 / OS X 10.10 R |
Server closed connection |
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| Safari 9 / iOS 9 R |
Server closed connection |
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| Safari 9 / OS X 10.11 R |
Server closed connection |
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| Safari 10 / iOS 10 R |
Server closed connection |
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| Safari 10 / OS X 10.12 R |
Server closed connection |
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| Safari 12.1.2 / MacOS 10.14.6 Beta R |
Server closed connection |
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| Safari 12.1.1 / iOS 12.3.1 R |
Server closed connection |
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| Apple ATS 9 / iOS 9 R |
Server closed connection |
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| Yahoo Slurp Jan 2015 |
Server closed connection |
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| YandexBot Jan 2015 |
Server closed connection |
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# Not simulated clients (Protocol mismatch)
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| Android 2.3.7 No SNI 2 |
Protocol mismatch (not simulated) |
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| Android 4.0.4 |
Protocol mismatch (not simulated) |
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| Android 4.1.1 |
Protocol mismatch (not simulated) |
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| Android 4.2.2 |
Protocol mismatch (not simulated) |
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| Android 4.3 |
Protocol mismatch (not simulated) |
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| Baidu Jan 2015 |
Protocol mismatch (not simulated) |
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| IE 6 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 7 / Vista |
Protocol mismatch (not simulated) |
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| IE 8 / XP No FS 1 No SNI 2 |
Protocol mismatch (not simulated) |
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| IE 8-10 / Win 7 R |
Protocol mismatch (not simulated) |
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| IE 10 / Win Phone 8.0 |
Protocol mismatch (not simulated) |
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| Java 6u45 No SNI 2 |
Protocol mismatch (not simulated) |
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| Java 7u25 |
Protocol mismatch (not simulated) |
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| OpenSSL 0.9.8y |
Protocol mismatch (not simulated) |
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| Safari 5.1.9 / OS X 10.6.8 |
Protocol mismatch (not simulated) |
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| Safari 6.0.4 / OS X 10.8.4 R |
Protocol mismatch (not simulated) |
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| (1) Clients that do not support Forward Secrecy (FS) are excluded when determining support for it. | |||
| (2) No support for virtual SSL hosting (SNI). Connects to the default site if the server uses SNI. | |||
| (3) Only first connection attempt simulated. Browsers sometimes retry with a lower protocol version. | |||
| (R) Denotes a reference browser or client, with which we expect better effective security. | |||
| (All) We use defaults, but some platforms do not use their best protocols and features (e.g., Java 6 & 7, older IE). | |||
| (All) Certificate trust is not checked in handshake simulation, we only perform TLS handshake. | |||
| Protocol Details | |
| Secure Renegotiation | Supported |
| Secure Client-Initiated Renegotiation | No |
| Insecure Client-Initiated Renegotiation | No |
| BEAST attack | Mitigated server-side (more info) |
| POODLE (SSLv3) | No, SSL 3 not supported (more info) |
| POODLE (TLS) | No (more info) |
| Zombie POODLE | Unknown (more info) |
| GOLDENDOODLE | Unknown (more info) |
| OpenSSL 0-Length | Unknown (more info) |
| Sleeping POODLE | Unknown (more info) |
| Downgrade attack prevention | Unknown (requires support for at least two protocols, excl. SSL2) |
| SSL/TLS compression | No |
| RC4 | No |
| Heartbeat (extension) | No |
| Heartbleed (vulnerability) | No (more info) |
| Ticketbleed (vulnerability) | No (more info) |
| OpenSSL CCS vuln. (CVE-2014-0224) | No (more info) |
| OpenSSL Padding Oracle vuln. (CVE-2016-2107) |
No (more info) |
| ROBOT (vulnerability) | No (more info) |
| Forward Secrecy | Yes (with most browsers) ROBUST (more info) |
| ALPN | No |
| NPN | No |
| Session resumption (caching) | No (IDs assigned but not accepted) |
| Session resumption (tickets) | No |
| OCSP stapling | No |
| Strict Transport Security (HSTS) | No |
| HSTS Preloading | Not in: Chrome Edge Firefox IE |
| Public Key Pinning (HPKP) | No (more info) |
| Public Key Pinning Report-Only | No |
| Public Key Pinning (Static) | No (more info) |
| Long handshake intolerance | No |
| TLS extension intolerance | No |
| TLS version intolerance | No |
| Incorrect SNI alerts | No |
| Uses common DH primes | No, DHE suites not supported |
| DH public server param (Ys) reuse | No, DHE suites not supported |
| ECDH public server param reuse | Yes |
| Supported Named Groups | secp384r1, x25519, secp256r1 (server preferred order) |
| SSL 2 handshake compatibility | No |
|
HTTP Requests
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1 https://mail.modulcentr.ru/
(HTTP/1.1 302 Moved Temporarily)
| 1 | |
| Cache-Control | no-cache | |
| Pragma | no-cache | |
| Location | https://mail.modulcentr.ru/owa/ | |
| Server | Microsoft-IIS/10.0 | |
| X-FEServer | ||
| X-RequestId | cf6c9e05-058e-4474-b3ef-c4f57f68b386 | |
| Date | Wed, 21 Jan 2026 11:32:22 GMT | |
| Connection | close | |
| Content-Length | 0 | |
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2 https://mail.modulcentr.ru/owa/
(HTTP/1.1 302 Found)
| 2 | |
| Content-Type | text/html; charset=utf-8 | |
| Location | https://mail.modulcentr.ru/owa/auth/logon.aspx?url=https%3a%2f%2fmail.modulcentr.ru%2fowa%2f&reason=0 | |
| Server | Microsoft-IIS/10.0 | |
| request-id | 53541cd4-22e4-421d-8b0c-bc718814c86b | |
| X-Powered-By | ASP.NET | |
| X-FEServer | ||
| Date | Wed, 21 Jan 2026 11:32:23 GMT | |
| Connection | close | |
| Content-Length | 222 | |
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3 https://mail.modulcentr.ru/owa/auth/logon.aspx?url=https%3a%2f%2fmail.modulcentr.ru%2fowa%2f&reason=0
(HTTP/1.1 200 OK)
| 3 | |
| Cache-Control | no-cache, no-store | |
| Pragma | no-cache | |
| Content-Type | text/html; charset=utf-8 | |
| Expires | -1 | |
| Server | Microsoft-IIS/10.0 | |
| request-id | 68350d30-748c-4720-9f96-be9a9cfe7710 | |
| X-Frame-Options | SAMEORIGIN | |
| X-AspNet-Version | 4.0.30319 | |
| X-Powered-By | ASP.NET | |
| Date | Wed, 21 Jan 2026 11:32:24 GMT | |
| Connection | close | |
| Content-Length | 27957 | |
| Miscellaneous | |
| Test date | Wed, 21 Jan 2026 11:32:07 UTC |
| Test duration | 143.448 seconds |
| HTTP status code | 200 |
| HTTP server signature | Microsoft-IIS/10.0 |
| Server hostname | modulcentr.ru |
SSL Report v2.4.1