spicer.app

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6b:a6:a1:5e:2f:cd:18:a3:a3:98:dd:02:96:5a:25:6e:5c 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=spicer.app

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:6b:a6:a1:5e:2f:cd:18:a3:a3:98:dd:02:96:5a:25:6e:5c
Serial Number (int): 297968560773249376268027068047714911874652
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 81:39:6e:81:fe:f9:26:37:ee:3f:d0:72:bb:06:a9:39:d7:45:33:3d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a3:d0:e1:09:9f:de:c2:1d:20:67:f5:4d:66:eb:25:31:d4:05:a6:e3
Fingerprint (sha256): 71:24:2f:53:f9:cd:bf:d4:15:d9:0b:0b:0e:4c:fb:c6:bd:42:c6:13:33:28:bb:7b:77:08:94:e0:d5:bc:1a:42

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 spicer.app

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for spicer.app

Public Key Algorithm

RSA

Key Size

4096

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

spicer.app
www.spicer.app

Other certificates including the domain name spicer.app

(limited to 100 certificates)

Certificate

The complete raw certificate details for spicer.app in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAvKmefMMntdYsPSJHPGmP
ZGWKel8fTsqnHQjKV13svtI7Hyc6LXcdqAud8ATfSPJ4F/QXzTdiVYryLmLhI74V
gg0tEgzEPQJfqcQ911Sh1bHDD2xGigUgljqM0EtKSSQUgmctteb5P8SW+pUoxwWd
Oi2g6drSNKzPG0Zq/oLhnKcu1IkFEOTXlcKIOkWi9nDK1/E8AAk/E7j1ooLDjRXg
q/FD2nEcFgXqdY6LYCm1uyDJzi3kDmXHlGGjlZmyyzl7nVUi5v0kAGBicdAzu9PM
NnlJjK45Mt222OWa2+tBJxgXH6HUAJ9KkQFfq0IoGf6vYY4e0hW26iwPs9t9KWXk
4xCDEffNzu+geXzrl37CL/glGxmMatX+qqW78D8AilspkWsm3l6RMzLT6v7XzSuS
jAg4qHg6zcebX4YwHD4N2jEwMYnyjNJC8wQMOacNxGvYnnFWebYPzr8APMjY/2HI
SAQsb/aoTo2P/O87kXrLSwA1ScO9HOWyaBSTjoLkbysksYH2e2cTZyePCBO+FRe8
mN3h8WnvKCgPUILh/H+6PXgw2yVcX1r/hsSqR9JQpXA0fb9JdnmAYJiKByL2CQl1
PB6E8K1ofaCEMxiNtH1MN84veY2tJa2DQ6q//gt2HRM+cMbhocsG3wKyUkTFtKjO
bNX2SOmZI4LAa2FZ71Ncrc8CAwEAAQ==
-----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 297968560773249376268027068047714911874652
 . . . . . . . . [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 2020-01-22 11:38:21 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-21 11:38:21 +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 'spicer.app'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 769676153222654097633525931977841793730063647844240870281687849374779854942879036099943345098195905475220586361000874034526292045201613584780272807362366266288393940683518013921639751515913014960946862169291108048704108139920148360052629649883778374631893415128099959915527904805528613445129201009292639668727089708536306502704193302038074094156957817366433174503144802274202103578617538623257234943985113342202401648050953523275213912636035932038243076120169303196097253915055456669167275754871251619189978779060263429720715919259461618826460972376697345584591815609213318296149042801123827459004152230387291795023147452869903493243061266391628519701109807047934393756357461335654306920265795635495157354729841474237977230238055800979726059168894374620262393797852953845337100773022863164118992625756037800938626578096188012756822522834686668894060573798641433178013928728715633061147462336569780579258456407361137298950573663502322403448655065721235549106173514779762513202784155198162883639736498501832705816299061145645354297251556613221235116781650658395093998644255234501329339764225401032354046449891013501872984136800249064924081559520275658760080582332156460510178255130228845865361256425309556011707433163500270745131199951
 . . . . . . . . . . . . . . . . . . . . [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)
							81396e81fef92637ee3fd072bb06a939d745333d
 . . . . . . . . . . . . . . . . [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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'spicer.app'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.spicer.app'
 . . . . . . . . . . . . . . . . [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)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016fcd42c0d300000403004730450221009fcac5f9c750368ca7dbde459343ae7b4964064f8ec165e0b85bdac64934457a022061baa4a0602b6063195f32734e8342db6ea3cdc16ae38106e2857c070b63058700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016fcd42c0cf000004030047304502205587b4c9982695f8eca4c0678aa1e55e23727beda2d768746f9176e788c19552022100e21b36fa6395dbb3c7db72fd60ed1e126a1ac953e97ee70687473cdf7d531c66
 . . . . [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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