chalkboards.ns02.us

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:03:97:4b:bd:82:a1:77:e0:dc:92:2f:98:b6:0d:47:76:c1 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=chalkboards.ns02.us

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:03:97:4b:bd:82:a1:77:e0:dc:92:2f:98:b6:0d:47:76:c1
Serial Number (int): 262558811589396515966795191358325747316417
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ca:f7:56:50:9d:14:05:eb:a8:30:7e:d4:3c:1b:df:48:55:ee:33:01
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 98:9f:cb:9c:c4:5c:31:92:cd:0b:8a:4a:04:d3:af:51:b7:43:50:14
Fingerprint (sha256): 26:72:d1:67:24:8b:ac:7e:ca:90:e3:0b:80:5b:d9:e5:e0:ab:3f:ad:1a:c4:f2:00:2a:3a:82:a8:e2:70:c2:27

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 chalkboards.ns02.us

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for chalkboards.ns02.us

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

chalkboards.ns02.us

Other certificates including the domain name ns02.us

(limited to 100 certificates)

Certificate

The complete raw certificate details for chalkboards.ns02.us 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 262558811589396515966795191358325747316417
 . . . . . . . . [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 2019-07-23 23:55:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-21 23:55:18 +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 'chalkboards.ns02.us'
 . . . . . . . . [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 825601174818381796056430934428078577719486377141213224403818155530443987526460791299574179160162392402686085321881118220313759263126170099518596904394350135737472606475113151993614520138715261686127973029310551737709918474606430119718886364027513064328660847820326260222687097831986329108864055270732080753520213202999774263869301718803221264513007381498289262361900842086190508409631784079769081960022964096977383780568101034589228453734256378627056770491697986809605896397491466236537263959213523621998012479240450440222104456458705720796091462775763766203334619624946430160614203969539731086749193510030703685818426338807983753238270813116073692192117024579903997132163517048626241255789078517687999657035317822364057425427456534524694676231255043368803169102531381903424343808287008248379586973257147761460491674942863306862262146746238884214247157560287484856244774445166658515464451502174195334628402598318665765792066884154989950340452863504216791487058533667084754314428516609359815227111154753236870583139175821555928663855582509193580864224113710920983967401754772126161666708118436031137859590783456739949745964740153492983801777973628931734463936827523099063967662034037461814083958502728644700880842261222558471312868387
 . . . . . . . . . . . . . . . . . . . . [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)
							caf756509d1405eba8307ed43c1bdf4855ee3301
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'chalkboards.ns02.us'
 . . . . . . . . . . . . . . . . [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)
							00ef007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c2179b0de00000403004730450221008e03549dbff19ea887d523f9ccd6d86a129a2d621435963a7a4b306751b6186e022005f39e6fd68be54357c5d9f6a6540c7672ebc53d7087aa329ebfbb540a257d34007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c2179b1020000040300463044022042e9b63d6bfdf983c6795f1eb8b3d6e1b2d2178e7bfa53272eacf02277c4a7a5022039094a26f2d22959f3028ed455b27e2908ab7f6536c927dfdc05f13d708f7a1a
 . . . . [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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