colfesnet.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:6b:11:78:c9:18:c8:6d:ce:ad:31:5e:0e:84:d5:bf:10:d6 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=colfesnet.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:6b:11:78:c9:18:c8:6d:ce:ad:31:5e:0e:84:d5:bf:10:d6
Serial Number (int): 384882581017860605911440515201499702169814
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: f6:b5:0c:0a:94:0b:ca:32:48:bc:f8:b0:d4:34:55:9c:b6:bb:cd:96
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 5e:91:98:f3:80:af:54:8a:80:2c:74:fc:24:66:01:a3:c9:b4:55:fb
Fingerprint (sha256): 45:13:2d:f9:7b:31:43:0a:47:f6:9b:f7:af:b1:44:e0:c8:7d:b2:41:ae:49:df:44:99:9a:d7:1f:fa:77:e9:f2

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 colfesnet.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for colfesnet.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

colfesnet.com
www.colfesnet.com

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campionalumni.org
charterhouseconnect.org.uk
graduway.co.uk
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m.colfesnet.com
campionalumni.org
campionalumni.org
community.mancosa.co.za
campionalumni.org
campionalumni.org
campionalumni.org
campionalumni.org
connected.cardiff.ac.uk
m.colfesnet.com
colfesnet.com
challonershighnetwork.com
cettalumni.com
challonershighnetwork.com
www.vivesconnect9.be
campionalumni.org
graduway.co.uk
m.colfesnet.com
graduway.co.uk
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campionalumni.org
graduway.co.uk
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m.colfesnet.com
campionalumni.org
graduway.co.uk
graduway.co.uk
campionalumni.org
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graduway.co.uk
campionalumni.org
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campionalumni.org
www.vivesconnect9.be
campionalumni.org
campionalumni.org
colfesnet.com
community.mancosa.co.za
community.mancosa.co.za
campionalumni.org
community.mancosa.co.za
campionalumni.org
campionalumni.org
campionalumni.org
community.mancosa.co.za
campionalumni.org
campionalumni.org
m.colfesnet.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiDOKEwdRJh8ufdTiHhIz
k8X1qgfPcyRF2xXa67laxg6YciCoX+Z+0BjqymbBJ91YxARGaNXjJ4rDVNeNHQMd
ncfLMuztpuY2D8UO0lCTTGaeupR8l3mK/77hUw5upqydBsrhv5QPSpkoPk38+EUm
fR0a79vNg/KaJZuM0gsEHTcPkaTAEppoDyJTaxVvEdtB2gsXcPGX0AuX6LIgOXhb
LLzRLJNNG5l9CKh1TaTMXVzkvH6KyMQUSZOpJEUvmlb3rZVNJf1sa1BBKi6/SjFK
liQ8ejmuQO6801nIbTLtzxU845Nm2e/qqhflP6hyCQjTd41yISzDcip324KUNB/3
NwIDAQAB
-----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 384882581017860605911440515201499702169814
 . . . . . . . . [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 2019-09-26 11:31:48 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-25 11:31:48 +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 'colfesnet.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 17193824477505946442108755439097124135528554591034517222173401371953130192971291656539433731590038416200562836070439106405033641669270388896586570500438717421762317333458267909273751737468826865909891849820414506187028399069907398066017947784311332086037660476068609364927943702566430776752483879476699624651418215178226831131621039598506193219915791623715958946469353823931697305475257574472445029045924226907760888044759482294689880550433740688023755950052805526091890614770452877904607417422155211370458594873883326482322975438813893377690757803889082386782402282794268256378043745833795056842195887404605732026167
 . . . . . . . . . . . . . . . . . . . . [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)
							f6b50c0a940bca3248bcf8b0d434559cb6bbcd96
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'colfesnet.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.colfesnet.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d6d8e5775000004030046304402201a4f97341521868da150ed55e650225169dad7b3a101ececa98a8f2d3d246e5102205df9f63980ed4d6369cc7aa8a95c5783432969a61369b54732fe152e86a952ac00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016d6d8e574f000004030047304502204cdf5362a663a4d002056281715f5ca82f7e809f673a39cd525418a0e71df4ee022100c0e1f5be856e008badcadac534af0169ca42e67e6a6a55435b63f448899da7b5
 . . . . [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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