www.alumniserv.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:b2:d9:3e:c1:43:97:2b:82:15:95:bb:ad:b0:5f:bc:13:02 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=www.alumniserv.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:b2:d9:3e:c1:43:97:2b:82:15:95:bb:ad:b0:5f:bc:13:02
Serial Number (int): 409308173356318714214536555937764640297730
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: eb:c2:85:b7:40:56:d7:34:cf:a5:42:7b:51:2b:a4:ae:12:f7:0f:60
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d4:c1:b3:74:23:bc:de:0c:d0:f1:aa:64:10:dd:76:13:be:44:0b:b7
Fingerprint (sha256): 81:0e:ac:6c:d2:46:71:32:6e:a1:ae:88:6e:23:78:9a:b0:82:ce:43:8d:e1:3e:07:96:26:15:45:b9:3b:87:12

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 www.alumniserv.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.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 www.alumniserv.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiE513cQn0bMWiHBGjam9
SkYQpD9VLXDt1Aq9Ifodb0RmGwdZbSNdkcEdpTqth5z0MGoh8eXY21n83Am4BXdo
m1U9VsksUHt2cmUhdeRWvjt4XSaGQjUvILiuO6X6h4kQl5IXKwvXaV4AhcUncsSt
RsGz+l039Z89PO37rozWHwVNfcZEODMre4K2y/MW1rJ3xIzFUckPFc1aoXRzGtzi
FxITddRpt2aB1b7tqgcfnILfczip8/mqooa5uNfKaY1KV6HQ5wsV5hVe+Pl89a1v
GzAhlQ78xODIyvMP09eye0ce5jYLbKEEbXXEDrvQgXkUZWpk8WJ73mrHUCZeQ4Dw
FQIDAQAB
-----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 409308173356318714214536555937764640297730
 . . . . . . . . [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 2019-10-15 04:38:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-13 04:38:12 +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.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 17207099748092840576822027095303675441841835509392030594692784658997849335063853978031950423907764911890532716434441536970536201210209590515634029328108514559760116781820506012266544492787842425558561055763803011422528882077062993420898245270296158710473765939310078461197668985592964247062343869527694501720122746525074387919221910941939494741594301834525267661153841856690530309956367077331176479633660977245574562383090992014604198594246211958777263879533668452039267703893371072954716029559531311988225880774590734086642495675545225330841676755846767245391136896190497473410539822619150148624868138646931452784661
 . . . . . . . . . . . . . . . . . . . . [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)
							ebc285b74056d734cfa5427b512ba4ae12f70f60
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dcdec83010000040300473045022100bd2feba403117951230c28c9b45d06e21558c5e4bcbf60feac7b975715d3be7902202b5cf32557fe095f0cb03248997fe6ba401131d1e675f33c95ec1ea46d238eda0076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016dcdec851f0000040300473045022035ce68d9c9492a8b9cce4448bcfed6398d0de36e5a429243cd6d5921fd1c379302210080f27a9c2761bf6fee33c62e8a3db89ce7e67a59e5ac27dc63b2c207cd7a91c8
 . . . . [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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