SSL Server Test: cyt.rec.uba.ar (Powered by Qualys SSL Labs)

SSL Report: cyt.rec.uba.ar (186.33.228.42)

Assessed on: Wed, 26 Nov 2025 03:28:56 UTC | Clear cache

Due to a recently discovered bug in Apple's code, your browser is exposed to MITM attacks. Click here for more information.

Summary

Overall Rating

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 TLS 1.0 and TLS 1.1. Grade capped to B. MORE INFO »

This server does not support TLS 1.3. MORE INFO »

This site works only in browsers with SNI support.

Certificate #1: RSA 2048 bits (SHA256withRSA)

Server Key and Certificate #1
Subject	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00=
Common names	cyt.rec.uba.ar
Alternative names	cyt.rec.uba.ar
Serial Number	05e8f275c009046babd31bf701ab4c295c29
Valid from	Thu, 30 Oct 2025 14:56:39 UTC
Valid until	Wed, 28 Jan 2026 14:56:38 UTC (expires in 2 months and 2 days)
Key	RSA 2048 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/42.crl
Revocation status	Validation error CRL ERROR: IOException occurred
DNS CAA	No (more info)
Trusted	Yes Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	2 (2565 bytes)
Chain issues	None
#2
Subject	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ=
Valid until	Fri, 12 Mar 2027 23:59:59 UTC (expires in 1 year and 3 months)
Key	RSA 2048 bits (e 65537)
Issuer	ISRG Root X1
Signature algorithm	SHA256withRSA

Certification Paths


Path #1: Trusted
1	Sent by server	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
2	Sent by server	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
3	In trust store	ISRG Root X1 Self-signed Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6 Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M= RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
2	Sent by server	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
3	In trust store	ISRG Root X1 Self-signed Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6 Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M= RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
2	Sent by server	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
3	In trust store	ISRG Root X1 Self-signed Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6 Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M= RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
2	Sent by server	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
3	In trust store	ISRG Root X1 Self-signed Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6 Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M= RSA 4096 bits (e 65537) / SHA256withRSA
Path #1: Trusted
1	Sent by server	cyt.rec.uba.ar Fingerprint SHA256: cbe091cb71125d94eb4b88a31b1420b64d4eaf4d843b255fb9510d7803f32488 Pin SHA256: Wm5U1lGj8oyXMO2AS7rs10OH+Qvu7JzIUnRq+g1tt00= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
2	Sent by server	R12 Fingerprint SHA256: 131fce7784016899a5a00203a9efc80f18ebbd75580717edc1553580930836ec Pin SHA256: kZwN96eHtZftBWrOZUsd6cA4es80n3NzSk/XtYz2EqQ= RSA 2048 bits (e 65537) / SHA256withRSA CRL ERROR: IOException occurred
3	In trust store	ISRG Root X1 Self-signed Fingerprint SHA256: 96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6 Pin SHA256: C5+lpZ7tcVwmwQIMcRtPbsQtWLABXhQzejna0wHFr8M= RSA 4096 bits (e 65537) / SHA256withRSA

Click here to expand

Certificate #2: RSA 2048 bits (SHA256withRSA) No SNI

Server Key and Certificate #1
Subject	*.uba.ar Fingerprint SHA256: 07f5d2807217cef99118599c202e8ca8d97327017e004bcfe8f4d00a3106ddd7 Pin SHA256: i4BXX2E2W6VRgWli4UuJpi/0+bJHlD049jTzC5SuHZM=
Common names	*.uba.ar
Alternative names	.uba.ar MISMATCH*
Serial Number	03c5812c0dc0dd8bfc343b5d297641c525c2
Valid from	Mon, 10 Feb 2020 16:20:26 UTC
Valid until	Sun, 10 May 2020 16:20:26 UTC (expired 5 years and 6 months ago) EXPIRED
Key	RSA 2048 bits (e 65537)
Weak key (Debian)	No
Issuer	Let's Encrypt Authority X3 AIA: http://cert.int-x3.letsencrypt.org/
Signature algorithm	SHA256withRSA
Extended Validation	No
Certificate Transparency	Yes (certificate)
OCSP Must Staple	No
Revocation information	OCSP OCSP: http://ocsp.int-x3.letsencrypt.org
Revocation status	Unchecked (only trusted certificates can be checked)
Trusted	No NOT TRUSTED Mozilla Apple Android Java Windows

Additional Certificates (if supplied)
Certificates provided	2 (2530 bytes)
Chain issues	Incomplete
#2
Subject	Let's Encrypt Authority X3 Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg=
Valid until	Wed, 17 Mar 2021 16:40:46 UTC (expired 4 years and 8 months ago) EXPIRED
Key	RSA 2048 bits (e 65537)
Issuer	DST Root CA X3
Signature algorithm	SHA256withRSA

Certification Paths


No trust paths available Issuer unknown, or intermediate certificate(s) missing.
No trust paths available Issuer unknown, or intermediate certificate(s) missing.
No trust paths available Issuer unknown, or intermediate certificate(s) missing.
No trust paths available Issuer unknown, or intermediate certificate(s) missing.
Path #1: Not trusted (validity check failed)
1	Sent by server	.uba.ar Fingerprint SHA256: 07f5d2807217cef99118599c202e8ca8d97327017e004bcfe8f4d00a3106ddd7 Pin SHA256: i4BXX2E2W6VRgWli4UuJpi/0+bJHlD049jTzC5SuHZM= RSA 2048 bits (e 65537) / SHA256withRSA Valid until: Sun, 10 May 2020 16:20:26 UTC EXPIRED*
2	Sent by server	Let's Encrypt Authority X3 Fingerprint SHA256: 25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d Pin SHA256: YLh1dUR9y6Kja30RrAn7JKnbQG/uEtLMkBgFF2Fuihg= RSA 2048 bits (e 65537) / SHA256withRSA Valid until: Wed, 17 Mar 2021 16:40:46 UTC EXPIRED
3	In trust store	DST Root CA X3 Self-signed Fingerprint SHA256: 0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739 Pin SHA256: Vjs8r4z+80wjNcr1YKepWQboSIRi63WsWXhIMN+eWys= RSA 2048 bits (e 65537) / SHA1withRSA Valid until: Thu, 30 Sep 2021 14:01:15 UTC EXPIRED Weak or insecure signature, but no impact on root certificate

Click here to expand

Configuration

Protocols
TLS 1.3	No
TLS 1.2	Yes^*
TLS 1.1	Yes
TLS 1.0	Yes^*
SSL 3	No
SSL 2	No
(*) Experimental: Server negotiated using No-SNI

Cipher Suites
# TLS 1.2 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (`0xc030`) ECDH secp256r1 (eq. 3072 bits RSA) FS	256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (`0xc02f`) ECDH secp256r1 (eq. 3072 bits RSA) FS	128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (`0xc028`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 (`0xc027`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	112
TLS_RSA_WITH_AES_256_GCM_SHA384 (`0x9d`) WEAK	256
TLS_RSA_WITH_AES_128_GCM_SHA256 (`0x9c`) WEAK	128
TLS_RSA_WITH_AES_256_CBC_SHA256 (`0x3d`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA256 (`0x3c`) WEAK	128
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x84`) WEAK	256
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x41`) WEAK	128
# TLS 1.1 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	112
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x84`) WEAK	256
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x41`) WEAK	128
# TLS 1.0 (suites in server-preferred order)
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (`0xc014`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (`0xc013`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	128
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA (`0xc012`) ECDH secp256r1 (eq. 3072 bits RSA) FS WEAK	112
TLS_RSA_WITH_AES_256_CBC_SHA (`0x35`) WEAK	256
TLS_RSA_WITH_AES_128_CBC_SHA (`0x2f`) WEAK	128
TLS_RSA_WITH_3DES_EDE_CBC_SHA (`0xa`) WEAK	112
TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (`0x84`) WEAK	256
TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (`0x41`) WEAK	128

Handshake Simulation
Android 2.3.7 No SNI ²	Incorrect certificate because this client doesn't support SNI RSA 2048 (SHA256) \| TLS 1.0 \| TLS_RSA_WITH_AES_128_CBC_SHA
Android 4.0.4	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.1.1	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.2.2	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.3	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Android 4.4.2	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Android 5.0.0	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Android 6.0	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Android 7.0	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Android 8.0	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Android 8.1	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Android 9.0	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Baidu Jan 2015	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
BingPreview Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Chrome 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Chrome 69 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Chrome 70 / Win 10	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Chrome 80 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Firefox 31.3.0 ESR / Win 7	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 47 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ECDH secp256r1 FS
Firefox 49 / XP SP3	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Firefox 62 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Firefox 73 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Googlebot Feb 2018	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
IE 7 / Vista	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
IE 8 / XP No FS ¹ No SNI ²	Server sent fatal alert: handshake_failure
IE 8-10 / Win 7 R	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
IE 11 / Win 7 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 11 / Win 8.1 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 10 / Win Phone 8.0	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
IE 11 / Win Phone 8.1 R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
IE 11 / Win Phone 8.1 Update R	RSA 2048 (SHA256)	TLS 1.2 > http/1.1	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
IE 11 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 15 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 16 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 18 / Win 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Edge 13 / Win Phone 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 6u45 No SNI ²	Incorrect certificate because this client doesn't support SNI RSA 2048 (SHA256) \| TLS 1.0 \| TLS_RSA_WITH_AES_128_CBC_SHA
Java 7u25	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA ECDH secp256r1 FS
Java 8u161	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 11.0.3	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Java 12.0.1	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 0.9.8y	RSA 2048 (SHA256)	TLS 1.0	TLS_RSA_WITH_AES_256_CBC_SHA No FS
OpenSSL 1.0.1l R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.0.2s R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.1.0k R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
OpenSSL 1.1.1c R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 5.1.9 / OS X 10.6.8	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Safari 6 / iOS 6.0.1	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 6.0.4 / OS X 10.8.4 R	RSA 2048 (SHA256)	TLS 1.0	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA ECDH secp256r1 FS
Safari 7 / iOS 7.1 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 7 / OS X 10.9 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / iOS 8.4 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 8 / OS X 10.10 R	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 ECDH secp256r1 FS
Safari 9 / iOS 9 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 9 / OS X 10.11 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 10 / iOS 10 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 10 / OS X 10.12 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 12.1.2 / MacOS 10.14.6 Beta R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Safari 12.1.1 / iOS 12.3.1 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Apple ATS 9 / iOS 9 R	RSA 2048 (SHA256)	TLS 1.2 > h2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
Yahoo Slurp Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
YandexBot Jan 2015	RSA 2048 (SHA256)	TLS 1.2	TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 ECDH secp256r1 FS
# Not simulated clients (Protocol mismatch)
IE 6 / XP No FS ¹ No SNI ²	Protocol mismatch (not simulated)
Click here to expand
(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	Not mitigated server-side (more info) TLS 1.0: `0xc014`
POODLE (SSLv3)	No, SSL 3 not supported (more info)
POODLE (TLS)	No (more info)
Zombie POODLE	No (more info) TLS 1.2 : `0xc014`
GOLDENDOODLE	No (more info) TLS 1.2 : `0xc014`
OpenSSL 0-Length	No (more info) TLS 1.2 : `0xc014`
Sleeping POODLE	No (more info) TLS 1.2 : `0xc014`
Downgrade attack prevention	Yes, TLS_FALLBACK_SCSV supported (more info)
SSL/TLS compression	No
RC4	No
Heartbeat (extension)	Yes
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	With modern browsers (more info)
ALPN	Yes h2 http/1.1
NPN	Yes h2 http/1.1
Session resumption (caching)	Yes
Session resumption (tickets)	Yes
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	No
Supported Named Groups	secp256r1, secp521r1, secp384r1, secp256k1 (server preferred order)
SSL 2 handshake compatibility	Yes

HTTP Requests

1 https://cyt.rec.uba.ar/ (HTTP/1.1 200 OK)
1
	Server	nginx
	Date	Wed, 26 Nov 2025 03:26:11 GMT
	Content-Type	text/html; charset=UTF-8
	Transfer-Encoding	chunked
	Connection	close
	Vary	Accept-Encoding
	Cache-Control	no-store, no-cache, must-revalidate
	Content-Security-Policy	default-src * data: 'unsafe-eval' 'unsafe-inline'
	Expires	Thu, 19 Nov 1981 08:52:00 GMT
	Link	<https://cyt.rec.uba.ar/wp-json/>; rel="https://api.w.org/"
	Link	<https://cyt.rec.uba.ar/wp-json/wp/v2/pages/1103>; rel="alternate"; title="JSON"; type="application/json"
	Link	<https://cyt.rec.uba.ar/>; rel=shortlink
	Pragma	no-cache
	Referrer-Policy	no-referrer-when-downgrade
	Set-Cookie	PHPSESSID=a0347f0f65be85ba0e4738f7d550a152; path=/
	X-Content-Type-Options	nosniff
	X-Dlm-No-Waypoints	true
	X-Frame-Options	SAMEORIGIN
	X-Powered-By	PHP/8.2.29
	X-Tec-Api-Origin	https://cyt.rec.uba.ar
	X-Tec-Api-Root	https://cyt.rec.uba.ar/wp-json/tribe/events/v1/
	X-Tec-Api-Version	v1
	X-Xss-Protection	1; mode=block

Miscellaneous
Test date	Wed, 26 Nov 2025 03:25:56 UTC
Test duration	180.293 seconds
HTTP status code	200
HTTP server signature	nginx
Server hostname	42.228.33.186.in-addr.arpa

SSL Report v2.4.1

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