57781.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:30:19:bd:ac:1b:14:4d:33:82:d6:09:fb:d4:23:1f:7b:42 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=57781.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:30:19:bd:ac:1b:14:4d:33:82:d6:09:fb:d4:23:1f:7b:42
Serial Number (int): 277704626942206567412069244857631543098178
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6a:45:66:bf:dd:7e:72:c2:d1:25:6e:d2:de:0a:a1:6f:af:be:00:ab
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 38:62:10:f3:09:be:d8:f2:14:40:bc:02:92:3f:be:e9:76:76:f7:d8
Fingerprint (sha256): 72:2b:05:ed:7d:82:79:39:82:b1:a7:c3:dd:f6:18:b5:7a:2e:cc:fe:b3:c7:f2:4f:41:57:af:ed:c6:4f:85:78

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 57781.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 57781.com

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

57781.com

Other certificates including the domain name 57781.com

(limited to 100 certificates)
www.28951.com
57781.com
www.57781.com
www.57781.com
www.57781.com
31981.com
www.57781.com
braylen.org
www.28911.com
57781.com
57781.com
www.57781.com
57781.com
57781.com
www.57781.com
57781.com
www.57781.com

Certificate

The complete raw certificate details for 57781.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGSTCCBTGgAwIBAgISAzAZvawbFE0zgtYJ+9QjH3tCMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjMwMjI0MTdaFw0x
OTA2MjEwMjI0MTdaMBQxEjAQBgNVBAMTCTU3NzgxLmNvbTCCAiIwDQYJKoZIhvcN
AQEBBQADggIPADCCAgoCggIBALmxfZkmobJ5O84BQwCGQmAmLA6kY5GyNinlKZL/
zN4Lu/oxIW5xV8Z+U2JziejpS3N9s8ieU7kjnZkmLkpEQ5mqmPUc1KZ4wwKGjav3
+x53lhdOGd+TQUP4Oot9pJY0KrzUcdJqBpWj6Cr/FYa/5DzcBBQr0l0zmF5l1MhL
qOm8A47iS0Jz8dHPc+2w8xoMCv07l1Fx5h2KHPlfGq9kTfr1wohsYanAreVTOrJ9
NA3HVK8Kh+wR/Pmhgfr6NEQnEaEvhI5p3SIRiPb1adCh0lWVCFVw+Nw4sbMFu15x
WvzDetN2Tr+pNgSkn8aRay7xec+l6ReU+0OxM11YC90oqO3bv3JVo2mKnWdW6ymd
YsZ8lkkcfCA7w2rNLxxd0MJjXZkhl2bvMqzHr4E1mq06K9mN24mZGJrwCfQxFAW8
hQu8oGoXLl3z41vb+L7eKW9P6UVpphYVog2ZTerTXtZgNnP02ZHfnOS1K8jqBnIu
6a0dYWPYciZ1oC+JfEzKwaL3SAfLIP4INdj6xx71Lp3JHF8Zv7DTjgDuKfU6FDjs
6TSbZrneEY0h7EXLexLqbBq5hsZhnk8gdExDjEibT4EdF1XrogOEpl9b+rPaXSEJ
g9UfA1myg4j3rNfK5Mpdv0HUKyAXlwHYfkh+Y+UgLveN6UvlBIJDYZpXJQk0yWJV
moMpAgMBAAGjggJdMIICWTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB
BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFGpFZr/dfnLC
0SVu0t4KoW+vvgCrMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G
CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJNTc3ODEuY29tMEwGA1UdIARFMEMw
CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j
cHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYA4mlL
ribo6UAJ6IYbtjuD1D7n/nSI+6SPKJMBnd3x2/4AAAFpqJPfIQAABAMARzBFAiEA
pDs7UrEeIjp3NWSXkSWHNpXY3igRhHHLQdpzLHD4uT0CIGMiNqVeKIKSUubjAQEG
/B73Br5GuMp+GDitHyj8zr4TAHUAY/Lbzeg7zCzPC3KEJ1drM6SNYXePvXWmOLHH
aFRL2I0AAAFpqJPfLQAABAMARjBEAiA606cNz+0Frrk5uIg3pi41PBF/PfQo3ZZl
PK2d75VHAwIgfUJjIrKtjOuzRpWDAoA81APYpGCxBwsaVtQ4eYtJwXQwDQYJKoZI
hvcNAQELBQADggEBABfCXOzGe7wNIhzSEtZVSTV1g8RX1cwzVnz1Ckgtgsz+wsBq
IOolEhySFjvNCt9PhLUXrNrj6AuyKfKl61giN0b2eI625KoC+1lqEZzaE8D31iMi
K/un9iRz30ktSYp+2fqKZOLVq1D/8A4PghZzJvwxoE/9+/M9Y1Y6EJEY59+csra+
dWZ37lYpNz80BD1ZNgzb84GIv3lP5/ArMoJeaq1E7SbdZORw1YF0jXCqkq7XsWpW
Gu67KmcrBBIGUnSaZhmmWBWtCXM2BSJrhdmFdkXhc/HSuMx37T//HtZo0Mc1Ax9U
87o435eUIicoizW7ISwq8OVkkBwS07NmJ8WqWoM=
-----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 277704626942206567412069244857631543098178
 . . . . . . . . [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 2019-03-23 02:24:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-21 02:24:17 +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 '57781.com'
 . . . . . . . . [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 757562662534715938390192034359732242330279559565478230944375214581634463275826388922660636002569180714072709157318466838658323119259335443782578959933029615573719405220553109810638572792470212675719153410302711563231962611021422072340376438225681638124637635810679526231271169440276812239061719042195032904840632440867719588330032956997980333875195968698264119808285212818032479214905852588476781736579043334090990106500074862080355340260192217489811637927267304035358265570221201830681261561430708925308079309814235223934910808213913059672115456095790629432952793637414866288050922954725239159085029550189753141514228795683119830706413088632264147227752622232781616767798496414421777340453615226338368113318822167783833357619527271136672859830283204716626876939083287322491885385487443773262245087110090865680579554486437797357121786950024321438897731992294385013551017561220755943493314216968714736374111876785443715705987223889239949053829197412907654389321208577561414928539206837952312127973472392347408847134833785933393213512685301031886723268742575259172506417548773834198027240341840076171274599855413441638756587174769250889640890795383704001444733621261155473220127623473091304203000087557202645595018188429062145580892969
 . . . . . . . . . . . . . . . . . . . . [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)
							6a4566bfdd7e72c2d1256ed2de0aa16fafbe00ab
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '57781.com'
 . . . . . . . . . . . . . . . . [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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169a893df210000040300473045022100a43b3b52b11e223a773564979125873695d8de28118471cb41da732c70f8b93d0220632236a55e28829252e6e3010106fc1ef706be46b8ca7e1838ad1f28fccebe1300750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000169a893df2d000004030046304402203ad3a70dcfed05aeb939b88837a62e353c117f3df428dd96653cad9def95470302207d426322b2ad8cebb346958302803cd403d8a460b1070b1a56d438798b49c174
 . . . . [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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