*.notanumber.ch

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b7:96:7d:56:30:e4:42:26:d3:fd:fc:88:06:f4:95:71:aa 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=*.notanumber.ch

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b7:96:7d:56:30:e4:42:26:d3:fd:fc:88:06:f4:95:71:aa
Serial Number (int): 323808565926448353257490585944991689175466
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: e6:cd:1a:1d:97:fa:91:28:1d:ac:3c:91:94:69:25:98:c4:ed:31:f9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2f:49:f9:c9:d7:f4:12:c6:17:57:8c:3a:25:8e:77:ef:d3:60:db:2e
Fingerprint (sha256): a2:fe:9d:86:b7:47:ac:f8:c3:f0:97:61:c8:26:ee:8d:5e:54:3f:ae:25:2c:3f:5c:ef:38:aa:6c:90:b5:e4:2b

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 *.notanumber.ch

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.notanumber.ch

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

*.notanumber.ch
notanumber.ch

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*.notanumber.ch

Certificate

The complete raw certificate details for *.notanumber.ch in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsPS+FG7ULQDZXzHNNljl
LsSG+/wccWL5K9SR/H/IEkzLD/900L761i2AeIXi0/WrJrTCij+gjg5NLseuJxEw
2iK1Mv+TGabk6Osred1vubXLrdUknHd7I9xFpVepoCI25K9hQVP7lfOD5IrlK9R4
NhbHc304YZcDZMKJQQ3AJ/+9zdUv84430mprPq+5Kw9rRGl84+2bV8IhXx1d+8vn
wJFr1Gn46TrJ6cMY1bEDTZiO1s6a53+32TrYIqcdRx927bKzmHFDyvuH6RtpPZ2b
KAKred0iehRdhVH+AZ28flnKPvs3j7kdRMztpsGENAP9yBOdYBD9jQRfcirxGx6Q
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 323808565926448353257490585944991689175466
 . . . . . . . . [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 2019-05-07 08:28:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-08-05 08:28:38 +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:12|false] UTF8String '*.notanumber.ch'
 . . . . . . . . [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 22338628698489121307283154396268236314650853136468633933410539273636542235504662436015359555552936174702490803797596789406647255475743896944777424008419818826736793756416807266677603622903986711805458878443191500281629609918222872791581695803329191109868160199678795111405557196912558283015399361651067820515424627604437331057063337109629932572020100579968905869107864353254093889537088997796784804914509764181074307370178386772737484183114696780073137847436152053360903251928791265825921611262125475699196103904023188923783022868829270861220952957283531603453970757525425696794073579202979091288882888384470121877559
 . . . . . . . . . . . . . . . . . . . . [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)
							e6cd1a1d97fa91281dac3c9194692598c4ed31f9
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.notanumber.ch'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'notanumber.ch'
 . . . . . . . . . . . . . . . . [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)
							00f0007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016a919fa147000004030046304402204287b731842a8690792c764a97b957958ba33920febda3534b545d0340c5d607022034e65c28bb6c741fd2608ee959a7c0df8015d4bde792cfeef71a85a5ba5836c0007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016a919fa0aa0000040300483046022100bb1b03f20a919b7491762cea501b337b7f5e876e9be76ab20fd80cb473b7a33b022100a0c8f9b73dfb810b88a690cc5515b0d8bb9262009e0512970d6780dc85e730da
 . . . . [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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