www.flatty.app

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:79:5a:0d:3c:d0:3b:d1:7a:05:db:6c:24:66:f0:08:12:6c 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): 04:79:5a:0d:3c:d0:3b:d1:7a:05:db:6c:24:66:f0:08:12:6c
Serial Number (int): 389743009377396890926264161196978194616940
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 3a:42:c1:1c:a3:e6:4a:f2:ad:bc:e2:b2:0c:64:94:ac:3a:7b:cb:bd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a6:3b:34:80:f4:48:66:e3:d8:cb:31:88:78:20:5c:de:7a:7e:71:ff
Fingerprint (sha256): d9:05:42:de:b6:c6:5a:7c:65:f5:53:db:5c:6c:aa:d1:3c:c7:06:15:ca:66:03:08:85:48:1e:46:34:e5:dc:8a

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 389743009377396890926264161196978194616940
 . . . . . . . . [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 2019-11-26 02:55:41 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-24 02:55:41 +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 771964388638394505474423668826471145173803704379226048285032019747237020631485365154365181284881430388190845179003043330121480131980798230765313729358132415704487658985787973572260544509936540880591605823563776863851656972446534519431039972362041373335009265933480703778614292324103108512851368690851570787728549976245219077959076479406383887268772444757133462852807118646814424726877790537285581844036865298850075565488663022836702757193525127411619974992623954423387241788012974932308125184874375510235443503549951204602232250395237143168219000598950312512389706054638792604639920555532052375109627074174061904127061439521001467309859534365712917140170656189258502825945042025809394553202071960148945719259056876456165044042139297715038679968801257606517000153833523602236300200030505051524667309654766637748603242975087086784335206294985679410825583709028992058106914531584857464297625780716302510125606958492033643465188119707874211649340499986713896249825577246409691420188200120199258572127796991309886350555917302567481745917753507776808411617006370384379641248508496107946466609896376096391781704387365235501045540655011111403683652461305663444137245767644361795481836817993638576513750855640081287070859568704492301241027043
 . . . . . . . . . . . . . . . . . . . . [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)
							3a42c11ca3e64af2adbce2b20c6494ac3a7bcbbd
 . . . . . . . . . . . . . . . . [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)
							00f0007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ea5d9c1c1000004030046304402200235e5cbed79075a9e125b0764ae09f4f2955c99f598ad8625200c637dfddd9402201a442463f2c34d645dbea9b9c822ae6d8c2e9904021746420214edd465d0676e007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ea5d9c1b20000040300483046022100ad1b9d86f121f120a74aac3491a63a540b1b858646f923aa8cd66f85e6cbcc11022100c75c30fc5c52488d0442d35d8d9fbdbb5add0fcf0361e3f7c77991945fd52ff0
 . . . . [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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