alumniserv.com

Issued by R3

About this certificate

This digital certificate with serial number 04:71:d5:63:a4:3b:20:d1:df:48:c1:bf:f7:06:37:43:47:29 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:
  • 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=alumniserv.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:71:d5:63:a4:3b:20:d1:df:48:c1:bf:f7:06:37:43:47:29
Serial Number (int): 387184694120598008814176644420175684388649
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 77:a3:c0:74:bb:26:b8:eb:bb:84:0a:a7:c8:a1:64:83:40:56:d9:5e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 56:ec:61:e1:1d:b0:19:cb:b7:c1:9c:8b:7d:64:ab:03:9f:92:4a:53
Fingerprint (sha256): 1b:88:1c:cc:cd:91:32:15:ae:c9:ff:7d:98:4d:f5:56:c6:a2:b7:fc:66:51:0d:e9:26:cc:da:22:ff:2a:72:8d

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

Revocation information

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

Check the revocation status for certificate alumniserv.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for alumniserv.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

alumniserv.com

Other certificates including the domain name alumniserv.com

(limited to 100 certificates)
alumniserv.com
alumniserv.com
www.alumniserv.com
alumniserv.com
www.alumniserv.com
alumniserv.com
alumniserv.com
alumniserv.com
alumniserv.com
www.alumniserv.com
alumniserv.com
monitoring.terrifictech.co.zw
alumniserv.com
alumniserv.com
monitoring.alumniserv.com
www.alumniserv.com

Certificate

The complete raw certificate details for alumniserv.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApeuCwExylPk+dr6nHPeG
bNJCPlyRiTI7VJYNvqqSCZrahOa6tH+vI/hhVPaBT3ahg9I8Sk7gvTvdmOHQZe0g
LQ5d2CKBDqjw4oSwNMqZfsuF9+KJjAtZiB+YMhO6cwTQ5B4PY37xDwSZrnsIfBNF
sK+oBO6vKzCPMjcfN7LhrlgdS6O5Ste1keEFTBRPNV4ZkL45UnNG5J3OWvD1EP6V
I1vkAeEC6+rl+bVT/PyY8lbQSWCZsiS7YUFx3gUsbEQrGBBxYRtCLO3vn7klCLut
P51P1vUebptoYBUmGKszjedVjMOJzyTl1in8dUGbDQCLitsXf6gCBuf7aKxsqhhl
bwIDAQAB
-----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 387184694120598008814176644420175684388649
 . . . . . . . . [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 2024-02-08 16:11:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-08 16:11:36 +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 'alumniserv.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 20945454997017914199801692766253662526668081221384664264755399057745867255374798935422204876365072446357270792464652601227180144999668118755792016055919334631792916130669652438228647938680312789601292138344350064554703525686503075980512291290365086604487394659384349529388458371877151202350936379092910198514786559192480644068263024917887028500244482467059263870336074294749903658271088118109853232003443294086427152478739011394225655810810790958049150137805182786899140114731336824131867837804942094404596398956623530118280101831257550981255050650189328715537340292407269619377452349591986299881856639641393917617519
 . . . . . . . . . . . . . . . . . . . . [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)
							77a3c074bb26b8ebbb840aa7c8a164834056d95e
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'alumniserv.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d89b418670000040300473045022100b3d4bd0a50827c00cc20254e80558da91b623867eb4936f533c81137bc35baa102205643cd9a0a65d58a3ec319e03fac194de0b313bae65fd3b2db39e5285020d03300760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018d89b41af10000040300473045022100e6865001eb06cc169a48e16165468b7963c8026c2abbc02c2941146e37de125502201a6fcfeea1d62eebe377b55b54f5805a591f726fb6a6a4c66d08237ed7f0f589
 . . . . [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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