www.flatty.app

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:06:fe:34:22:33:65:a7:df:c2:79:6c:15:41:b0:65:aa:2b 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.flatty.app

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:06:fe:34:22:33:65:a7:df:c2:79:6c:15:41:b0:65:aa:2b
Serial Number (int): 350828732532606653555693346782110734985771
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: c0:a0:79:b5:e8:49:5b:ce:7e:b3:58:70:a4:cf:ad:9c:a6:74:13:37
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 12:8c:46:95:18:ff:c4:7e:a1:e1:be:f2:0a:b7:0c:f4:81:04:3f:42
Fingerprint (sha256): 41:e8:11:1c:69:85:28:6d:61:bf:a8:e0:6a:8e:30:0e:7f:e1:e1:52:31:e2:ad:6b:18:d9:0f:b8:8e:8a:04:b1

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.flatty.app

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.flatty.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

www.flatty.app

Other certificates including the domain name flatty.app

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 350828732532606653555693346782110734985771
 . . . . . . . . [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 2019-09-17 03:23:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-16 03:23:26 +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.flatty.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 822180207456809948392534281771116488320756707751543286842370189321835439931456395268493013093333142531335820075900354241740305069746782896299644417252919370573759575848878366372594019347947511184440907162154679920796621474894755154604020698597991086354802541107393459669166349460826447025139858249131498178411974199928124494284889048414677134861076225569847111368563973282851971556258592574974790647033370714356867007819894343129439333029085222187572819707658358278549169434542251521365425813839246331095644403158245348522960792813751902699333261724069519633867604679402431534204341373077972920047363097701075424203417671758083889609376301934575912669652128796867787378120757214946270201800010303338256535674552753353169431588640448939367373467561628176329264026407079300213433937098603153993450472860480097189124382736197349400734602302795733939196426445978120211593718056653122745850584279213693605434953845847523243498449865082930777089604552867511911090813934157783841053758606637758424737488631058584070495193454494039389545360228200239999991216792111190472735875677406487510922754128781808090151426866566682916574932234285472871329209202339290613388403468542646252777991740975301817154468314650626859771585433391179584302661451
 . . . . . . . . . . . . . . . . . . . . [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)
							c0a079b5e8495bce7eb35870a4cfad9ca6741337
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.flatty.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)
							00f00076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016d3d75ff150000040300473045022100fcf909748e0e75239414a81fa056b87fbc73253fcfd785a30c945e6dae607287022025abdaba82f45bb46c3012b08746013fbbbc46820259eb3b19eaba31f299d114007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d3d75fee100000403004730450220402aedb67d394c1968eee99374acda5a601ad3782dff830228400fc7d82b4b6d02210096ccceae1b7fd92b855d3e256478155c73aa3677a452dca8f145c263384ef92b
 . . . . [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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