www.erasmusmais.pt

Issued by R3

About this certificate

This digital certificate with serial number 04:d3:b0:b2:2d:6a:43:fe:02:f9:bf:62:f0:6b:61:67:ab:2a was issued on by Let's Encrypt.

With 2 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=www.erasmusmais.pt

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d3:b0:b2:2d:6a:43:fe:02:f9:bf:62:f0:6b:61:67:ab:2a
Serial Number (int): 420483592424585626737921752836592502287146
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 3b:bd:c9:f0:20:a1:fd:58:ec:f3:f7:36:21:2c:7f:02:54:1f:67:71
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5a:89:2d:37:da:33:b1:e5:d2:97:54:ed:2d:7b:97:c0:e9:1d:f8:4f
Fingerprint (sha256): 30:da:c2:6e:85:04:26:b5:75:a4:2b:a5:60:99:6b:13:6d:78:b2:91:6c:f7:2f:70:ce:20:5f:67:45:d0:0f:0b

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

Revocation information

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

Check the revocation status for certificate www.erasmusmais.pt

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.erasmusmais.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

erasmusmais.pt
www.erasmusmais.pt

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erasmusmais.pt

Certificate

The complete raw certificate details for www.erasmusmais.pt in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA065/sAhdDJMZ+jnHCbO+
gd6W+2itLtfKXx30sYf/NDLMLsqQpXp4de5WOzbLcV3ndZ+dKzopXZ3S70mszPUG
rIUeW28qgAaR9oXvVFF2jwdPWS+/X5DdiRhVzNNRD0HFgQhhweQb9Lv5Msth2J57
JdrwFmT2BkqkPlyRfRbOt4BX2gmPQ8EuHJTm9biHOw9kNopkMR/JU7ktjCCOkebd
PyybKnugewr8QG3pqio0Ksz+fYu8xBupF68KsdcOZFTUdRWGkyisf2sRAeOKlQsh
DEKI4M8NFOgLFJTZkuimmvTfunAONwteOeN79zdSa5JPraijOhOyR9p5SVpKHdP4
ywIDAQAB
-----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 420483592424585626737921752836592502287146
 . . . . . . . . [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 2023-09-30 12:24:01 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-29 12:24:00 +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 'www.erasmusmais.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 26722330903229048559186578816137268433503811956890361186597526714016853899722848931506203786228482872265457434559885675969216076975590351355521750771448317746488158649327570339242509947486065137765786649090201628089430416785069779762247145160552234096989421836081366800533303946839132280956391969287351451615814210351494174164439606690749307322555127122668452503190867887456522064897798197594689630310064206754752948469134560717069682127803264740702241660971369436098013312656354485128931943586641377547107122122702718570341351040956100948168294569898147113257196994361223725535579456953045069633194915074704177101003
 . . . . . . . . . . . . . . . . . . . . [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)
							3bbdc9f020a1fd58ecf3f736212c7f02541f6771
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'erasmusmais.pt'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.erasmusmais.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ae642a44f0000040300483046022100913164656472af4f1ed04f569b488bd7753dffc21a446c933a7f8cd141e19b5f022100c72d3ac2ca6b6a47a84885f12d131bf20b541452a1342a24b428af0caeb53aef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ae642a45300000403004730450221008fd7c8295912a58a7a06b76743c8ab48c3dbfcfe6e50f46b64bab149d5baa90702205cd5bbd94d8ec13c36c546f7e0b97bc0cce92acfc4c7d8c6d2be61d5df422d54
 . . . . [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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