mail.kairos-consulting.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:14:96:46:97:32:5f:00:ba:23:1c:b5:a7:1b:ab:12:44:74 was issued on by Let's Encrypt.

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=mail.kairos-consulting.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:14:96:46:97:32:5f:00:ba:23:1c:b5:a7:1b:ab:12:44:74
Serial Number (int): 268342255860482004260065108126934410347636
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ad:5c:59:a7:0a:bb:0c:f6:e7:58:fc:d5:22:9c:27:15:5d:ff:71:98
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 36:b4:7a:cc:e4:cd:85:7a:e2:7b:b2:ae:b8:5d:36:e9:20:b2:af:2a
Fingerprint (sha256): 03:79:6f:5a:ea:c3:1a:bd:c6:24:42:49:92:dd:b3:81:6e:9b:86:80:34:1a:19:75:11:b2:c5:7d:ac:a6:e3:e1

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate mail.kairos-consulting.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.kairos-consulting.com

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

mail.kairos-consulting.com

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Certificate

The complete raw certificate details for mail.kairos-consulting.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFazCCBFOgAwIBAgISAxSWRpcyXwC6Ixy1pxurEkR0MA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMDUwODIzNDZaFw0y
MDAxMDMwODIzNDZaMCUxIzAhBgNVBAMTGm1haWwua2Fpcm9zLWNvbnN1bHRpbmcu
Y29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwa4z/Q140Xhq/wRU
+6T1xfLGmo3Hl96QoXeSYLG/v2+Dlq4614FHGdpUxlAihxjj5D6E7K4/VuFaBlsu
MSCMLdND1/OqzalXaF7O6BbtgqRZKWeEYjr/f17VgY4Bj6px/D9djU8APadWtnMo
RsO/dAE5l8pKw/13hOgVWkdUXBkBuAxaBpll8SquHGwBL9YxQ8+wypPxtUSr3EBs
QPVDgnGKC/p7WtJNtanoqkuPmd69Ri9YQUkIc4GfCxLpnYbtGqz4zN5YP5NFKSVg
y6RJHSouBTVpAdST19GpF/YYJEL1yVXGkfixT5H0lwkH67j7cTqM0YIg4gQkJUkw
XOeQrQIDAQABo4ICbjCCAmowDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBStXFmnCrsM
9udY/NUinCcVXf9xmDAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBv
BggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5s
ZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5s
ZXRzZW5jcnlwdC5vcmcvMCUGA1UdEQQeMByCGm1haWwua2Fpcm9zLWNvbnN1bHRp
bmcuY29tMEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYI
KwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHW
eQIEAgSB9ASB8QDvAHUA8JWkWfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMA
AAFtmztukQAABAMARjBEAiBCyFViiXuHl2VDFmt3of/oGjzEcCMVPi9QqL8iGo7S
qwIgTzs0laZHG4D21cXzT6Oro8L2CQnVN64NEU++sxZPL64AdgCyHgXMi6LNiiBO
h2b5K7mKJSBna9r6cOeySVMt74uQXgAAAW2bO26/AAAEAwBHMEUCIQCOTZJ7GdsW
MEN/VbU162fOGVbhmTv7ohj7SbAz08U2agIgOUHQ2H4BtJZ0PaGlaP8Dsq3ihFpx
ZUNhqRrHg8JQ/REwDQYJKoZIhvcNAQELBQADggEBAB6wNrjJLslScyS/Nsa9YQUa
kOU0TuJ/EQrk+ehT4V6BsttjfRUffmI7fxTxFpB9usznOMJC/0cw7MMJgmHN8WCR
0vlzQwNEoVMfUt3MP2klQwjtxd2VSVfJAD+9XiI4WW1KJFEw71/k2BayI3YRQiyT
FrMg4m1K9rwzydhuY1dFa81Tqtr2cHxn7KRreTb3KfDqCRLF4zOCF3ZA1aYmnOTO
OydHxOiiaxFW9uP0ckM15E1BCqrqd4DND1Gd5Uux+kkdVZeGnFaV5dROfUaCFlHo
/tzDJ2XVO3xRTP6t/wYlDM/pjlpBZYOoApsFEbgJuL6bNULKNUEsIPLVrVXhx20=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwa4z/Q140Xhq/wRU+6T1
xfLGmo3Hl96QoXeSYLG/v2+Dlq4614FHGdpUxlAihxjj5D6E7K4/VuFaBlsuMSCM
LdND1/OqzalXaF7O6BbtgqRZKWeEYjr/f17VgY4Bj6px/D9djU8APadWtnMoRsO/
dAE5l8pKw/13hOgVWkdUXBkBuAxaBpll8SquHGwBL9YxQ8+wypPxtUSr3EBsQPVD
gnGKC/p7WtJNtanoqkuPmd69Ri9YQUkIc4GfCxLpnYbtGqz4zN5YP5NFKSVgy6RJ
HSouBTVpAdST19GpF/YYJEL1yVXGkfixT5H0lwkH67j7cTqM0YIg4gQkJUkwXOeQ
rQIDAQAB
-----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 268342255860482004260065108126934410347636
 . . . . . . . . [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 2019-10-05 08:23:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-03 08:23:46 +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 'mail.kairos-consulting.com'
 . . . . . . . . [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 24449895598849421903785347895446966252194510844756944294801891430247906698615985902280349135627870885903757594268052669951661179340744107669051857887470571396423674949265981958808335099246271490804526918453772007165449035512487819877154694319938657500664783183129355174098781209186664907504885730780085323872859178960254611933950891141148558166178043617219649453921519275942022852444689394940103093441219806112089763738321021284326720771214017755334578046286154310912243144319916046433575254731673688367620074572323909509379339809388081889542314671363054564402293471200503893157058342826128203838531848592784611578029
 . . . . . . . . . . . . . . . . . . . . [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)
							ad5c59a70abb0cf6e758fcd5229c27155dff7198
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.kairos-consulting.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016d9b3b6e910000040300463044022042c85562897b87976543166b77a1ffe81a3cc47023153e2f50a8bf221a8ed2ab02204f3b3495a6471b80f6d5c5f34fa3aba3c2f60909d537ae0d114fbeb3164f2fae007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016d9b3b6ebf00000403004730450221008e4d927b19db1630437f55b535eb67ce1956e1993bfba218fb49b033d3c5366a02203941d0d87e01b496743da1a568ff03b2ade2845a71654361a91ac783c250fd11
 . . . . [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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