comunik.io
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:7e:7a:af:ba:f1:fd:14:a6:ce:60:52:f4:63:61:49:37:4c was issued on by Let's Encrypt.
With 3 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=comunik.io
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:7e:7a:af:ba:f1:fd:14:a6:ce:60:52:f4:63:61:49:37:4cSerial Number (int): 304375514286455487786455559465644967147340
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 6d:3d:1f:6c:eb:b0:8e:61:43:1e:e4:16:39:1a:d0:04:d6:47:6a:4b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 3c:c8:01:40:3b:0f:82:fb:e8:c9:08:01:72:55:5b:da:72:f6:95:1b
Fingerprint (sha256): 56:13:50:bc:0c:a1:e0:05:58:78:41:69:d1:34:5d:26:e8:4a:00:ed:5a:d2:98:99:24:b2:d0:e8:40:21:11:b3
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate comunik.io
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for comunik.io
Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
comunik.io
mail.comunik.io
www.comunik.io
mail.comunik.io
www.comunik.io
Other certificates including the domain name comunik.io
(limited to 100 certificates)
Certificate
The complete raw certificate details for comunik.io in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFbjCCBFagAwIBAgISA356r7rx/RSmzmBS9GNhSTdMMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMjQxNzE1MjhaFw0y MDAyMjIxNzE1MjhaMBUxEzARBgNVBAMTCmNvbXVuaWsuaW8wggEiMA0GCSqGSIb3 DQEBAQUAA4IBDwAwggEKAoIBAQCjCf9x7Iy4IBxZqR1iiDMm7Peu5ii+brp++Y7r 1xskJ8HzypwqSOK8x6cFbWDIcwLOjdZNhC6WQkyN294NwjRgRisVuSl9tfh1axVJ RnKQlgOaSE/JyARC4aqyvkXRW2vGToU5YQ2USn9MY+79GapjvfwQxQw56WaYacw7 IPFGyGpqFQcCbP+FXx9iT1Bn1wN4rZPWaQqFDYSjPysbxuHp4NG/4899Orb/uhtw FCuhUo1ZpXemJD6tNiyK5CW4uLgQgCMk3956FeV+yjXLKRbCA0kSM2B5qqBAbMft W51C5zSBWQoFTRW5w/TcnyH8aDwxUV7/+DRt6UvqMRFSy00zAgMBAAGjggKBMIIC fTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMC MAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFG09H2zrsI5hQx7kFjka0ATWR2pLMB8G A1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAu BggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAv BggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8w NgYDVR0RBC8wLYIKY29tdW5pay5pb4IPbWFpbC5jb211bmlrLmlvgg53d3cuY29t dW5pay5pbzBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB 1nkCBAIEgfYEgfMA8QB3AAe3XBvlfWj/8bDGHSMVx7rmV3xXlLdq7rxhOhpp06Ic AAABbp6gMXcAAAQDAEgwRgIhALbp3q1t7v3EKpZLcK+1agCN9WLw8cZOfYmeHo4R tgifAiEA8TS+kkLPzTmS4kcr3nW5Uhv3Pngz/4s0frYYuASi3J8AdgBvU3asMfAx GdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAW6eoDG1AAAEAwBHMEUCIQC1C6ON rdSgYima0R9zA/V3vT6KUhtG9HQx1Ov4O2R3zQIgVlVEJTdZUJNPzp1I94KFKJYj 7S96Z5+RoRHKh5RTBU8wDQYJKoZIhvcNAQELBQADggEBAAANvDWgSrBcLdTc7b4z PlUzMixjb+XwmzyXIxohfzUCVw9JhUzsWxIlhHp+zW1YPpgfVHNyCVF6t54hfoJl QkRAsdx2rrJDKCePhwtdemKil7sa6lo3e08eqVakymssX1E+Mprmm7N3DXXbVzTQ wpxPCtWtfbLt4FMHMiNm579kKUWGz/zsKwfLx1jzvVC7TOcZnx/b2CP3N0wU97nF AYAyH60A75sbmAmNTpa439EaC6o7fgeTwN3W1fu6NX2gzKmFnqBbThvFm5S8k5aG tfEhtHMxCgvdTJcFODEpmasN8T817shFi71XIVKfbg931VqIDewjXZYvHcV65KT/ e1E= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAown/ceyMuCAcWakdYogz Juz3ruYovm66fvmO69cbJCfB88qcKkjivMenBW1gyHMCzo3WTYQulkJMjdveDcI0 YEYrFbkpfbX4dWsVSUZykJYDmkhPycgEQuGqsr5F0Vtrxk6FOWENlEp/TGPu/Rmq Y738EMUMOelmmGnMOyDxRshqahUHAmz/hV8fYk9QZ9cDeK2T1mkKhQ2Eoz8rG8bh 6eDRv+PPfTq2/7obcBQroVKNWaV3piQ+rTYsiuQluLi4EIAjJN/eehXlfso1yykW wgNJEjNgeaqgQGzH7VudQuc0gVkKBU0VucP03J8h/Gg8MVFe//g0belL6jERUstN MwIDAQAB -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 304375514286455487786455559465644967147340 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-11-24 17:15:28 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-22 17:15:28 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'comunik.io' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 20581773824220321500578303526775507540709309066582022036599650921265706603285618034655340492552823779826224426517618192166422967053308351234418719805661262402867223168064989962465400091459936444099897838357906093860600578278337581448909878460385815593796368992055790468185836459183121621181285996661826492862321847581036807905510865332645183418354703664828100235349737122216741549252931128943613054296473745438401171853238737309714919740571626458567469694937863857061648916458047997966011677132332699756740225500991804967487974102743814365736344124453366672940282804254311336004362124805479758854017809383951925202227 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) 6d3d1f6cebb08e61431ee416391ad004d6476a4b . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (47 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'comunik.io' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.comunik.io' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.comunik.io' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f100770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e9ea031770000040300483046022100b6e9dead6deefdc42a964b70afb56a008df562f0f1c64e7d899e1e8e11b6089f022100f134be9242cfcd3992e2472bde75b9521bf73e7833ff8b347eb618b804a2dc9f0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016e9ea031b50000040300473045022100b50ba38dadd4a062299ad11f7303f577bd3e8a521b46f47431d4ebf83b6477cd022056554425375950934fce9d48f78285289623ed2f7a679f91a111ca879453054f . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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