SSL Report: cdn.redacto.io (136.110.255.33)
Assessed on:  Thu, 04 Dec 2025 12:50:33 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
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 is vulnerable to the Return Of Bleichenbacher's Oracle Threat (ROBOT) vulnerability. Grade set to F.  MORE INFO »
HTTP request to this server failed, see below for details.
This server supports TLS 1.0. Grade capped to B. MORE INFO »
This server supports TLS 1.3.  MORE INFO »
DNS Certification Authority Authorization (CAA) Policy found for this domain.  MORE INFO »
Certificate #1: RSA 2048 bits (SHA256withRSA)
Server Key and Certificate #1
Subject cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=
Common names cdn.redacto.io
Alternative names cdn.redacto.io
Serial Number 0620c9ed6cec4dc305e9ff62ff6b3bd23f6c
Valid from Mon, 24 Nov 2025 06:11:01 UTC
Valid until Sun, 22 Feb 2026 06:11:00 UTC (expires in 2 months and 17 days)
Key RSA 2048 bits (e 65537)
Weak key (Debian) No
Issuer R13
AIA: http://r13.i.lencr.org/
Signature algorithm SHA256withRSA
Extended Validation No
Certificate Transparency Yes (certificate)
OCSP Must Staple No
Revocation information CRL
CRL: http://r13.c.lencr.org/109.crl
Revocation status Validation error
CRL ERROR: IOException occurred
DNS CAA Yes
policy host: redacto.io
issue: letsencrypt.org flags:0
Trusted Yes
Mozilla  Apple  Android  Java  Windows 


Additional Certificates (if supplied)
Certificates provided 2 (2567 bytes)
Chain issues None
#2
Subject R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=
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 cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=

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 cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=

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 cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=

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 cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=

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 cdn.redacto.io
Fingerprint SHA256: 7a783a543d16f31e26d58ea03522282941d2d155bafd8fb501d95a74722d39f7
Pin SHA256: VwpcKCHTVj3r706SFi2nmd1hLRKOZiLrIthYh+sGU+Y=

RSA 2048 bits (e 65537) / SHA256withRSA
CRL ERROR: IOException occurred
2 Sent by server R13
Fingerprint SHA256: d3b128216a843f8ef1321501f5df52a5df52939ee2c19297712cd3de4d419354
Pin SHA256: AlSQhgtJirc8ahLyekmtX+Iw+v46yPYRLJt9Cq1GlB0=

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

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


Cipher Suites
# TLS 1.3 (server has no preference)
TLS_AES_128_GCM_SHA256 (0x1301)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_AES_256_GCM_SHA384 (0x1302)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_CHACHA20_POLY1305_SHA256 (0x1303)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
# TLS 1.2 (we could not determine if the server has a preference)
TLS_RSA_WITH_3DES_EDE_CBC_SHA (0xa)   WEAK 112
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (0xc02f)   ECDH x25519 (eq. 3072 bits RSA)   FS 128
TLS_RSA_WITH_AES_256_CBC_SHA (0x35)   WEAK 256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (0xc030)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (0xcca8)   ECDH x25519 (eq. 3072 bits RSA)   FS 256
# TLS 1.0 (we could not determine if the server has a preference)
TLS_RSA_WITH_AES_128_CBC_SHA (0x2f)   WEAK 128
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 128
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014)   ECDH x25519 (eq. 3072 bits RSA)   FS   WEAK 256


Handshake Simulation
Android 2.3.7   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
Android 4.0.4 RSA 2048 (SHA256)   TLS 1.0 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Android 4.1.1 Server sent fatal alert: protocol_version
Android 4.2.2 Server sent fatal alert: protocol_version
Android 4.3 Server sent fatal alert: protocol_version
Android 4.4.2 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.0 RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 8.1 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Android 9.0 -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Baidu Jan 2015 Server sent fatal alert: protocol_version
BingPreview Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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_128_GCM_SHA256   ECDH x25519  FS
Chrome 70 / Win 10 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Chrome 80 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  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_128_GCM_SHA256   ECDH secp256r1  FS
Firefox 62 / Win 7  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Firefox 73 / Win 10  R -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH x25519  FS
Googlebot Feb 2018 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
IE 7 / Vista Server sent fatal alert: protocol_version
IE 8 / XP   No FS 1   No SNI 2 RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_3DES_EDE_CBC_SHA
IE 8-10 / Win 7  R Server sent fatal alert: protocol_version
IE 11 / Win 7  R Server sent fatal alert: handshake_failure
IE 11 / Win 8.1  R RSA 2048 (SHA256)   TLS 1.2 > http/1.1   TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
IE 10 / Win Phone 8.0 Server sent fatal alert: protocol_version
IE 11 / Win Phone 8.1  R Server sent fatal alert: handshake_failure
IE 11 / Win Phone 8.1 Update  R Server sent fatal alert: handshake_failure
IE 11 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Edge 15 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 16 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 18 / Win 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH x25519  FS
Edge 13 / Win Phone 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 6u45   No SNI 2 Server sent fatal alert: protocol_version
Java 7u25 Server sent fatal alert: protocol_version
Java 8u161 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 11.0.3 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
Java 12.0.1 -   TLS 1.3 TLS_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 0.9.8y RSA 2048 (SHA256)   TLS 1.0 TLS_RSA_WITH_AES_128_CBC_SHA  No FS
OpenSSL 1.0.1l  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.0.2s  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
OpenSSL 1.1.0k  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
OpenSSL 1.1.1c  R -   TLS 1.3 TLS_AES_256_GCM_SHA384   ECDH x25519  FS
Safari 5.1.9 / OS X 10.6.8 Server sent fatal alert: protocol_version
Safari 6 / iOS 6.0.1 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 6.0.4 / OS X 10.8.4  R Server sent fatal alert: protocol_version
Safari 7 / iOS 7.1  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 7 / OS X 10.9  R Server sent fatal alert: handshake_failure
Safari 8 / iOS 8.4  R RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA   ECDH secp256r1  FS
Safari 8 / OS X 10.10  R Server sent fatal alert: handshake_failure
Safari 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 9 / OS X 10.11  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / iOS 10  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 10 / OS X 10.12  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Safari 12.1.2 / MacOS 10.14.6 Beta  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Safari 12.1.1 / iOS 12.3.1  R -   TLS 1.3 TLS_CHACHA20_POLY1305_SHA256   ECDH x25519  FS
Apple ATS 9 / iOS 9  R RSA 2048 (SHA256)   TLS 1.2 > h2   TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
Yahoo Slurp Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   ECDH secp256r1  FS
YandexBot Jan 2015 RSA 2048 (SHA256)   TLS 1.2 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256   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 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 Yes, TLS_FALLBACK_SCSV supported (more info)
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) Yes,  but oracle is weak (more info)
Forward Secrecy With modern browsers (more info)
ALPN Yes   h2 http/1.1
NPN Yes   grpc-exp h2 http/1.1 http/1.0
Session resumption (caching) No (IDs empty)
Session resumption (tickets) Yes
OCSP stapling No
Strict Transport Security (HSTS) Unknown (failed HTTP request?)
HSTS Preloading Not in: Chrome  Edge  Firefox  IE 
Public Key Pinning (HPKP) Unknown (failed HTTP request?)
Public Key Pinning Report-Only Unknown (failed HTTP request?)
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 x25519, secp256r1 (server preferred order)
SSL 2 handshake compatibility Yes
0-RTT enabled No


HTTP Requests
1 https://cdn.redacto.io/  (Request failed)


Miscellaneous
Test date Thu, 04 Dec 2025 12:49:40 UTC
Test duration 53.221 seconds
HTTP status code Request failed
HTTP server signature Unknown
Server hostname 33.255.110.136.bc.googleusercontent.com


SSL Report v2.4.1