edu2.xi.to

Issued by R3

About this certificate

This digital certificate with serial number 04:29:f2:30:70:44:e5:9b:a3:c7:a2:cb:55:e3:52:4e:ad:0b 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=edu2.xi.to

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:29:f2:30:70:44:e5:9b:a3:c7:a2:cb:55:e3:52:4e:ad:0b
Serial Number (int): 362722645453117073785599407756467592146187
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 34:f0:44:78:35:76:db:df:b2:5e:6b:5d:48:a6:e8:28:e8:7a:ee:4a
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 00:45:7e:fd:e7:79:36:46:ac:df:27:57:7f:f9:65:06:a3:2e:7f:cd
Fingerprint (sha256): 3b:21:ba:31:1c:6f:35:31:63:8b:8c:be:4d:6e:a4:f7:6c:14:1c:d8:09:e0:20:bb:55:51:fe:a6:df:ab:f6:cc

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

Revocation information

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

Check the revocation status for certificate edu2.xi.to

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for edu2.xi.to

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

edu2.xi.to
w1.edu2.xi.to

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Certificate

The complete raw certificate details for edu2.xi.to in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAux/GTpsWwjG+HlRlpsj6
sYjrrKcXAdtbt2l5AQ94q5y4CtvCFrdoLC3o5A2jpgG2H1W92GJXimHlni5KwLTB
KoDWo7gaH+aEBawfPuT+Mt8xiennZmUD1zaAj3HIHrIsG+4T8wPkmEhm0cmfzZs7
pW3cXuNvtvMvydFOqebrqteregmp8ChHgBH3aBYUpZV2mWkoIuvyIBrrSYixhlD9
33YrxQexvMFsvwE0GeTRATTpe2DMajD6fOHHV5uA+vd3H4U9b/SzQTXZ5eOjcQJA
zO3iBtLU5jMnAmaIrsj4094JOYiA+7RzUGmvZR7lqRnq2qiOyRadUNSJs00ppMjg
ZQIDAQAB
-----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 362722645453117073785599407756467592146187
 . . . . . . . . [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 2023-10-12 05:16:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-10 05:16:41 +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 'edu2.xi.to'
 . . . . . . . . [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 23622231686101791678314059512613225466300056980936247994161028240212879462585927422671324232269881413889900073474618898288020009046277725556529925615984928014364495870778536540910061018267102223080371384277187850693705207666293908663520632253542500767938409696920417518635728743268874311878261389717092593418768453390232902367912964942963199322178292518660975056626068055886697952129434752738716981867494761300535677340548157855373084344633883116854715412726038957028940535985321320768695890502968692298092110262834779426752589209746648968995241269685371809024108981148519988588511933247726426120827278407880162205797
 . . . . . . . . . . . . . . . . . . . . [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)
							34f044783576dbdfb25e6b5d48a6e828e87aee4a
 . . . . . . . . . . . . . . . . [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 (29 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'edu2.xi.to'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'w1.edu2.xi.to'
 . . . . . . . . . . . . . . . . [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)
							00ef007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b2287bbd7000004030047304502204f5a9c52378086c9d70d58c825c116ff2a195cb16a9f969d11e4a773f95afd30022100b4b42e3b90922cc84c326bb2a20cd14c79df77dd41030f9930886c2a1e3a157000750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b2287bbf900000403004630440220727db17627a55388d78e5c204ec44887f15dcfddf967fccc5911341c0f46490e02201083557604a3c8e0197232a7df8b971402eb29ccc5ad522cc05994ea63b22aa4
 . . . . [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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