SSL Report: www.tkdl.res.in (164.100.129.185)
Assessed on:  Sat, 31 Jan 2026 18:09:50 UTC | Clear cache
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Summary
Overall Rating
F
0
20
40
60
80
100
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This server supports SSL 2, which is obsolete and insecure, and can be used against TLS (DROWN attack). Grade set to F.   MORE INFO »
This server accepts RC4 cipher, but only with older protocols. Grade capped to B.  MORE INFO »
This server does not support Forward Secrecy with the reference browsers. Grade capped to B.  MORE INFO »
This server does not support Authenticated encryption (AEAD) cipher suites. Grade capped to B.  MORE INFO »
This server supports TLS 1.0. Grade capped to B. MORE INFO »
This server does not support TLS 1.3.  MORE INFO »
HTTP Strict Transport Security (HSTS) with long duration deployed on this server.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA384withRSA)
Server Key and Certificate #1
Subject tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
Common names tkdl.res.in
Alternative names www.tkdl.res.in tkdl.res.in
Serial Number 3642f39deb551b96aa497f6c79fda3
Valid from Wed, 14 Jan 2026 07:44:56 UTC
Valid until Tue, 14 Apr 2026 07:44:56 UTC (expires in 2 months and 13 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer EM DV TLS CA - G2A-1
AIA: http://repository.emsign.com/certs/EMDVTLSCAG2A1EE.p7c
Signature algorithm SHA384withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL, OCSP
CRL: http://crl.emsign.com?EMDVTLSCAG2A1.crl
OCSP: http://ocsp-a.emsign.com
Revocation status Good (not revoked)
DNS CAA No (more info)
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 3 (5038 bytes)
Chain issues None
#2
Subject EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
Valid until Mon, 28 May 2040 07:16:12 UTC (expires in 14 years and 3 months)
Key RSA 4096 bits (e 65537)
Issuer emSign Root TLS CA - G1
Signature algorithm SHA384withRSA
#3
Subject emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
Valid until Sat, 09 Jul 2039 18:30:00 UTC (expires in 13 years and 5 months)
Key RSA 4096 bits (e 65537)
Issuer emSign Root CA - G1
Signature algorithm SHA256withRSA


Certification Paths
Path #1: Trusted
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA256withRSA
4 In trust store emSign Root CA - G1   Self-signed
Fingerprint SHA256: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367
Pin SHA256: N2oacIKlk9zMINVh0Rnpq40w8RzDIdCjf6QfDfKE4Bw=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Extra download
  Not in trust store 		emSign Root TLS CA - G1   Self-signed
Fingerprint SHA256: cef71e70b7c29addf6c30cd19e614b38fd5f02a435a0eeddd0087e183d101a51
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA256withRSA
4 In trust store emSign Root CA - G1   Self-signed
Fingerprint SHA256: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367
Pin SHA256: N2oacIKlk9zMINVh0Rnpq40w8RzDIdCjf6QfDfKE4Bw=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Extra download
  Not in trust store 		emSign Root TLS CA - G1   Self-signed
Fingerprint SHA256: cef71e70b7c29addf6c30cd19e614b38fd5f02a435a0eeddd0087e183d101a51
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA256withRSA
4 In trust store emSign Root CA - G1   Self-signed
Fingerprint SHA256: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367
Pin SHA256: N2oacIKlk9zMINVh0Rnpq40w8RzDIdCjf6QfDfKE4Bw=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Extra download
  Not in trust store 		emSign Root TLS CA - G1   Self-signed
Fingerprint SHA256: cef71e70b7c29addf6c30cd19e614b38fd5f02a435a0eeddd0087e183d101a51
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA256withRSA
4 In trust store emSign Root CA - G1   Self-signed
Fingerprint SHA256: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367
Pin SHA256: N2oacIKlk9zMINVh0Rnpq40w8RzDIdCjf6QfDfKE4Bw=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Extra download
  Not in trust store 		emSign Root TLS CA - G1   Self-signed
Fingerprint SHA256: cef71e70b7c29addf6c30cd19e614b38fd5f02a435a0eeddd0087e183d101a51
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA384withRSA
Path #1: Trusted
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Sent by server emSign Root TLS CA - G1
Fingerprint SHA256: 9b913476eab476e21e0887dbcde44345d1359d28116b83b7cd3e87bd807ebf68
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA256withRSA
4 In trust store emSign Root CA - G1   Self-signed
Fingerprint SHA256: 40f6af0346a99aa1cd1d555a4e9cce62c7f9634603ee406615833dc8c8d00367
Pin SHA256: N2oacIKlk9zMINVh0Rnpq40w8RzDIdCjf6QfDfKE4Bw=
RSA 2048 bits (e 65537) / SHA256withRSA
Path #2: Not trusted (path does not chain to a trusted anchor)
1 Sent by server tkdl.res.in
Fingerprint SHA256: 53294cbdba896c9c4504bf3a426388715b4dbe7f1af5a354f592f1ed86b8c7eb
Pin SHA256: /eyYn0oCFEeXG2vDLx3KjxsQ74HA29RWd4d6s6+hceY=
RSA 2048 bits (e 65537) / SHA384withRSA
2 Sent by server EM DV TLS CA - G2A-1
Fingerprint SHA256: 3f13597d3355d341bd09328aee567d7f4e002d9919b986f9962daff197ea75d1
Pin SHA256: zrUpja649ZJ5SAtGACyJ93Vcw6FpUUsRuBC+/BlaANg=
RSA 4096 bits (e 65537) / SHA384withRSA
3 Extra download
  Not in trust store 		emSign Root TLS CA - G1   Self-signed
Fingerprint SHA256: cef71e70b7c29addf6c30cd19e614b38fd5f02a435a0eeddd0087e183d101a51
Pin SHA256: 7OKONSic6GIcckB5SeUFAFKtRgfMMy6vm1RgKarL+3o=
RSA 4096 bits (e 65537) / SHA384withRSA

Click here to expand

Configuration
Protocols
TLS 1.3 No
TLS 1.2 Yes
TLS 1.1 No
TLS 1.0 Yes
SSL 3 No
SSL 2   INSECURE Yes


Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
# TLS 1.0 (suites in server-preferred order)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_RSA_WITH_RC4_128_SHA (0x5)   INSECURE 128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH secp256r1 (eq. 3072 bits RSA)   FS   WEAK 256
TLS_RSA_WITH_RC4_128_MD5 (0x4)   INSECURE 128
# SSL 2 (client selects suite)
SSL_CK_RC4_128_WITH_MD5 (0x10080)   INSECURE 128
SSL_CK_DES_192_EDE3_CBC_WITH_MD5 (0x700c0)   INSECURE 112


Handshake Simulation
Android 2.3.7   No SNI 2 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.0.4 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.1.1 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.2.2 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.3 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.4.2 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 5.0.0 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 6.0 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 7.0 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 8.0 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 8.1 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 9.0 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Baidu Jan 2015 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
BingPreview Jan 2015 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 49 / XP SP3 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 69 / Win 7  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 70 / Win 10 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Chrome 80 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 31.3.0 ESR / Win 7 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 47 / Win 7  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 49 / XP SP3 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 62 / Win 7  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Firefox 73 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Googlebot Feb 2018 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 6 / XP   No FS 1   No SNI 2 RSA 2048 (SHA384)   SSL 2 Client chooses one of the supported SSL 2 suites
IE 7 / Vista RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 8 / XP   No FS 1   No SNI 2 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_RC4_128_SHA  RC4
IE 8-10 / Win 7  R RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 7  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 8.1  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 10 / Win Phone 8.0 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win Phone 8.1  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win Phone 8.1 Update  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
IE 11 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 15 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 16 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 18 / Win 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 6u45   No SNI 2 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 7u25 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 8u161 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 11.0.3 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Java 12.0.1 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 0.9.8y RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.0.1l  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.0.2s  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.1.0k  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.1.1c  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 5.1.9 / OS X 10.6.8 RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 6 / iOS 6.0.1 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 6.0.4 / OS X 10.8.4  R RSA 2048 (SHA384)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 7 / iOS 7.1  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 7 / OS X 10.9  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 8 / iOS 8.4  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 8 / OS X 10.10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 9 / iOS 9  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 10 / iOS 10  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Safari 12.1.1 / iOS 12.3.1  R RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA384)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
YandexBot Jan 2015 RSA 2048 (SHA384)   TLS 1.2 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
(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.
(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 Not mitigated server-side (more info)   TLS 1.0: 0x2f
POODLE (SSLv3) No, SSL 3 not supported (more info)
POODLE (TLS) No (more info)
Zombie POODLE No (more info)   TLS 1.2 : 0x002f
GOLDENDOODLE No (more info)   TLS 1.2 : 0x002f
OpenSSL 0-Length No (more info)   TLS 1.2 : 0x002f
Sleeping POODLE No (more info)   TLS 1.2 : 0x002f
Downgrade attack prevention No, TLS_FALLBACK_SCSV not supported (more info)
SSL/TLS compression No
RC4 Yes   INSECURE (more info)
Heartbeat (extension) No
Heartbleed (vulnerability) No (more info)
Ticketbleed (vulnerability) No (more info)
OpenSSL CCS vuln. (CVE-2014-0224) Unknown (more info)
OpenSSL Padding Oracle vuln.
(CVE-2016-2107)		 No (more info)
ROBOT (vulnerability) No (more info)
Forward Secrecy With some browsers (more info)
ALPN No
NPN No
Session resumption (caching) Yes
Session resumption (tickets) No
OCSP stapling No
Strict Transport Security (HSTS) Yes
max-age=31536000
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 secp256r1, secp384r1, secp521r1 (server preferred order)
SSL 2 handshake compatibility Yes


HTTP Requests
1 https://www.tkdl.res.in/  (HTTP/1.1 302 Object moved)
1
Cache-Control private
Content-Length 161
Content-Type text/html
Location /tkdl/langdefault/common/Home.asp?GL=Eng
Server
Set-Cookie ASPSESSIONIDSWDTDRCB=MLCKCAEDMHFAJGGHLNNLGLCN; secure; path=/; HttpOnly; SameSite=lax; Secure
X-Frame-Options SAMEORIGIN
Server
X-XSS-Protection 1; mode=block
X-Content-Type-Options nosniff
Strict-Transport-Security max-age=31536000
Referrer-Policy tkdl.res.in
Permissions-Policy no-permissions
X-POWERED-BY
X-ASPNET-VERSION
Date Sun, 01 Feb 2026 07:42:11 GMT
Connection close
2 https://www.tkdl.res.in/tkdl/langdefault/common/Home.asp?GL=Eng  (HTTP/1.1 200 OK)
2
Cache-Control no-store, must-revalidate, private,no-cache,private
Pragma no-cache
Content-Length 28616
Content-Type text/html
Expires -1
Server
Set-Cookie ASPFIXATIONC=DEMO; expires=Sun, 01-Feb-2026 08:03:48 GMT; path=/; HttpOnly; SameSite=lax; Secure; SameSite=lax
X-Frame-Options SAMEORIGIN
Server
X-XSS-Protection 1; mode=block
X-Content-Type-Options nosniff
Strict-Transport-Security max-age=31536000
Referrer-Policy tkdl.res.in
Permissions-Policy no-permissions
X-POWERED-BY
X-ASPNET-VERSION
Date Sun, 01 Feb 2026 07:42:13 GMT
Connection close


Miscellaneous
Test date Sat, 31 Jan 2026 18:06:15 UTC
Test duration 214.913 seconds
HTTP status code 200
HTTP server signature -
Server hostname -


SSL Report v2.4.1