www.flatty.app

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:18:37:d2:2c:17:d0:a1:f5:ef:4b:86:71:d2:3c:d6:28:f5 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): 04:18:37:d2:2c:17:d0:a1:f5:ef:4b:86:71:d2:3c:d6:28:f5
Serial Number (int): 356690119349564811375423667827987252127989
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 78:e1:c3:a4:ff:06:24:ca:84:a3:23:11:db:e6:f0:2d:c8:48:62:8e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 2c:99:33:85:53:02:08:3b:96:b3:f4:2f:21:7e:61:37:81:a5:3d:f8
Fingerprint (sha256): 43:72:32:9b:53:5a:c3:d5:44:09:25:64:9a:42:c0:4a:c8:72:99:36:8c:dd:3b:48:f0:15:63:2b:0c:b5:da:2d

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 356690119349564811375423667827987252127989
 . . . . . . . . [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 2019-07-09 02:39:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-07 02:39:42 +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 810918208129875762042889869341450444803738328811454954666081752100925806479532155648265368738256230296751764485511116814831489099577375561255086540408034626721390792004591571129580777603316741317315618701284962293894831036005598299551945527970284179651106836655862491055403542258995798681867904360594098345161018324734474378761437771201838341194935613972542815476848738618621321289906273264206758874766262251607696869320781500588976527035313770877483715381962564161262301543744092846623233680624050312667386722334015498854179060083687469137653623008593285427570320514212694230701478701003731842995853024704150596780755649914748783946977176907824575763200344810203897565734109723610738267806355514671014362219660478223606959826794897011656026854862691948833092263891803946048751049248341677516930341342631234584072071027776307419681192205089007675480695068903500632425895161361992332908320558152226280630729950276407891433773340087050387708048126004976454776618362188783194241965230681832104893304764530323676206152938646014288733729898296836736061288404173238422635453068373832852799613119383694270016035301747684959244089435699994179784647614980283917695654816315276446293600733472613396678819759181280197828093865728323472697030251
 . . . . . . . . . . . . . . . . . . . . [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)
							78e1c3a4ff0624ca84a32311dbe6f02dc848628e
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016bd4d0cf0e00000403004630440220690152472ce52b948dd3aa9ffa9a0b9af912d0c15f291d918727e5cd245e1cc70220469dc917f7f9b20ee0689ff6f50410bf6b7cdd1df77a3a6ba047520ba4e3eac0007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016bd4d0cee9000004030047304502210085eb08325451703ec487f799c4e0c4e87b4e46d830f46cbb4f7d5d0e25187cb6022028ce4b383201138318d364ab329305a66a407fd4b97b31344077523b6b187081
 . . . . [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)
		00874a699506529f63a22dd15c1333db71ded387c255c5306bee6d8b90cc0b375137d2c42483c8bff3cb61bf2bba48c7a2f514638448ba99a030f4ed823c2c4b7dc7c6c60f21df928b7ee062a12dc5780a08a6718d72103e97902b34d332cb3ed65da368681437d18251f1ba746c0dc719301f00fd10fa16064398fdde09b0973ce3c5b1740cbe9bc16a3ebe7737cd4c59aa5635066cd3e5709f311f24a8511d7f7e1d4e0f65b85487e372f63c1a2fb43ff974b093a03ee9beabb8d787d833dce0e5555a71bbf090033b6f618a4e423337dcfecc8050d7ab2f6cfa1ce698e75f4988a5f5e87728bcbc80532d47bd7591867bb767dd3d4c5530ee03f1579b60105f