mail.espectral.pt

Issued by R3

About this certificate

This digital certificate with serial number 04:e3:fa:43:d0:5c:b1:59:3a:32:cc:2a:3b:47:35:a1:a6:98 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=mail.espectral.pt

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:e3:fa:43:d0:5c:b1:59:3a:32:cc:2a:3b:47:35:a1:a6:98
Serial Number (int): 426025900127014843821189093070696010065560
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 28:8e:22:57:45:cb:69:bd:a9:c2:b8:41:7f:dd:9c:c4:12:fd:0e:5a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ba:ff:f3:df:32:a5:bd:19:e6:2a:f3:72:c6:e4:8f:d3:4a:95:3d:3e
Fingerprint (sha256): c5:fa:25:bc:91:4e:13:d6:bd:23:6d:c0:6c:4b:72:61:03:d6:9f:cd:0e:1a:1a:6b:a8:cb:98:73:aa:e7:30:97

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate mail.espectral.pt

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.espectral.pt

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

espectral.pt
mail.espectral.pt
www.espectral.pt

Other certificates including the domain name espectral.pt

(limited to 100 certificates)
espectral.pt
espectral.pt
espectral.pt
espectral.pt
espectral.pt
espectral.pt
espectral.pt
espectral.pt
*.espectral.pt
mail.espectral.pt
espectral.pt
espectral.pt

Certificate

The complete raw certificate details for mail.espectral.pt in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFDjCCA/agAwIBAgISBOP6Q9BcsVk6MswqO0c1oaaYMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDAzMjgyMDE0NTdaFw0yNDA2MjYyMDE0NTZaMBwxGjAYBgNVBAMT
EW1haWwuZXNwZWN0cmFsLnB0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC
AQEA2EGNQtsf2y0ONLonmzh1iMkE77VoDRb0f3L6vZHy/Zalwaf5gOsZC27G/oSh
1qNA9I9Yo4O+1M05ZR2PzejefX8NCXAIDnbVlv3sz6qjLKRMKfE1e9ErnYjZFB9E
7Uja21p/HPDTGdxFV6fqwqMit/SD65+tjWEwB1d6kVl8woCrK+NTRG1CUthwlGPm
rD7q/KNUgmUt0SC/OJFVqjvskZ5YLQ5B0u0y/mI2XGT48mfAh2tiwMPkeli6LdSx
dwYNIu+dFW+AuX6l7FApBjyZIAcJPJIPrske1q2zgxfu9OQJYYciDLVUezM4WOdK
TwaqCNEfCP4F9zQfl63cs4PtHQIDAQABo4ICMjCCAi4wDgYDVR0PAQH/BAQDAgWg
MB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0G
A1UdDgQWBBQojiJXRctpvanCuEF/3ZzEEv0OWjAfBgNVHSMEGDAWgBQULrMXt1hW
y65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJMEcwIQYIKwYBBQUHMAGGFWh0dHA6
Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcwAoYWaHR0cDovL3IzLmkubGVuY3Iu
b3JnLzA8BgNVHREENTAzggxlc3BlY3RyYWwucHSCEW1haWwuZXNwZWN0cmFsLnB0
ghB3d3cuZXNwZWN0cmFsLnB0MBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYB
BAHWeQIEAgSB9ASB8QDvAHYAO1N3dT4tuYBOizBbBv5AO2fYT8P0x70ADS1yb+H6
1BcAAAGOhup8mAAABAMARzBFAiEA3kS0iIR82f/UwcinEv14FOkZCNCSWh1y65A0
LroIkZ8CIGQheBJlyGtY/VD3cYjNTu/6F3u9asD2rUufOMYF4KSHAHUAouK/1h7e
Ly8HoNZObTen3GVDsMa1LqLat4r4mm31F9gAAAGOhup8rAAABAMARjBEAiBPhwXt
xZQ8VOtAqTGip2HkIV6lkREpnYpz8hg/znrOowIgfd01FIBHGCXrfpsEMKlE7ESo
t969J9YDvSAtbXFrG1gwDQYJKoZIhvcNAQELBQADggEBAJWd0BsGD8hQqC6Iukxz
SU0Q2XnTOS7c4bwmitrobxbNRCeBTvSKJ2MwQMvRX2AQljTvaodQuZ5yzlUwUmYw
KFIIm+3vuMW3uAo+yKc5XW2/zQRbM13Y8Up/PS/mh/q8kSq48xjwm6EBbrqXOYI0
9A7Nxj2nv2zVYFxShMVbcrlkRy4huXrhwf5enWazTzGfJb96fVoAilUks5wgeOA+
5Yk851F5Ro00s/e7zRvzo6kNse6EAemaTbCri63oyTTKjnjIJrb/RN5mdDbwvIw5
fJ1VDYOMU+rUmXgnk3WnzRNRxXmVX8k9EhVsJp09y22C2KeYr3GD9QDEAC/FRY9j
L1A=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2EGNQtsf2y0ONLonmzh1
iMkE77VoDRb0f3L6vZHy/Zalwaf5gOsZC27G/oSh1qNA9I9Yo4O+1M05ZR2Pzeje
fX8NCXAIDnbVlv3sz6qjLKRMKfE1e9ErnYjZFB9E7Uja21p/HPDTGdxFV6fqwqMi
t/SD65+tjWEwB1d6kVl8woCrK+NTRG1CUthwlGPmrD7q/KNUgmUt0SC/OJFVqjvs
kZ5YLQ5B0u0y/mI2XGT48mfAh2tiwMPkeli6LdSxdwYNIu+dFW+AuX6l7FApBjyZ
IAcJPJIPrske1q2zgxfu9OQJYYciDLVUezM4WOdKTwaqCNEfCP4F9zQfl63cs4Pt
HQIDAQAB
-----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 426025900127014843821189093070696010065560
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-28 20:14:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-26 20:14:56 +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.espectral.pt'
 . . . . . . . . [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 27299798670696242518861237394690762160636479344351339972038925252715925199457651318322837963770426905348059286187355474843778210002480303613091387958993083132554751021579470663390862343004541088928278460790822125822282893859269695667817181989931525801007147367802214528190173455272996129751287158017149602109585536494473271775266945219427387986593919477330993074851023593572925918740352135577660070517242453836753937184800414471454587234352819038219274412814668263908797826579140015495596961663592395249100366428166878649860005090168455924142519957916644766402985934294658741390614502306441715796742988019278180248861
 . . . . . . . . . . . . . . . . . . . . [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)
							288e225745cb69bda9c2b8417fdd9cc412fd0e5a
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (53 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'espectral.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.espectral.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.espectral.pt'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e86ea7c980000040300473045022100de44b488847cd9ffd4c1c8a712fd7814e91908d0925a1d72eb90342eba08919f02206421781265c86b58fd50f77188cd4eeffa177bbd6ac0f6ad4b9f38c605e0a487007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e86ea7cac000004030046304402204f8705edc5943c54eb40a931a2a761e4215ea59111299d8a73f2183fce7acea302207ddd351480471825eb7e9b0430a944ec44a8b7debd27d603bd202d6d716b1b58
 . . . . [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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