nextstepbooks.com

Issued by GTS CA 1P5

About this certificate

This digital certificate with serial number d9:2d:3d:a9:0c:b0:3c:5a:0d:ac:63:03:07:c1:75:5f was issued on by Google Trust Services LLC.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=nextstepbooks.com

Google Trust Services LLC

Organization: Google Trust Services LLC
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): d9:2d:3d:a9:0c:b0:3c:5a:0d:ac:63:03:07:c1:75:5f
Serial Number (int): 288677379064432975391268444162077324639
Serial Number lenght: 128 bits, 16 octets

SubjectKeyId: 51:ef:62:ef:a6:64:83:06:10:98:be:f3:a0:b7:be:b2:82:01:34:71
AuthorityKeyId: d5:fc:9e:0d:df:1e:ca:dd:08:97:97:6e:2b:c5:5f:c5:2b:f5:ec:b8

Fingerprint (sha1): ab:1b:b0:03:9a:64:df:84:b6:53:08:93:40:d7:bb:08:e4:01:45:44
Fingerprint (sha256): 1d:63:fc:a1:be:11:57:47:fd:55:c7:94:42:de:6c:0d:8c:33:42:62:c6:c1:f6:fd:88:d6:3b:5b:7d:fa:aa:12

Issuing Certificate URL: http://pki.goog/repo/certs/gts1p5.der

Revocation information

OCSP Server: http://ocsp.pki.goog/s/gts1p5/XlEkYZsmrgs
CRL Distribution Point: http://crls.pki.goog/gts1p5/FCDFzEATB9g.crl

Check the revocation status for certificate nextstepbooks.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for nextstepbooks.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication

Extensions

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

nextstepbooks.com
*.nextstepbooks.com

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqyfwzfCxoAYjNI2c2aov
HDljaLvGjo+vHHBxLoWhecV0T8Q5lywSB3up2XUi7RAxmLlgPVG4JFRfLTcBeIE0
Rg60OWncLjrj9GfEra6XS9ZI5geRgo+xmYFV0WLwJwk5L1uk/p4EZNZ/gQE0djyN
vy1xUOVGcKAoEfpGmMaE90j7pUGOHeUk4eV9mHOuzGyr7MXLiOSQkHahctVqk6xk
PbQaPr+KPO4rvrrzzCMokAeaGlujDlX3M1dteUVpuduPugpUKGy6toKllEa3Bx6P
A9m1BKR99cP2K6VauYdpEM1p+RZgbcZ20BQo9YarbSEjHyKlpr+IrCrQPaiZAUrI
WQIDAQAB
-----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 288677379064432975391268444162077324639
 . . . . . . . . [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 'Google Trust Services LLC'
 . . . . . . . . . . . . [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 'GTS CA 1P5'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-03 08:55:32 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-09-01 08:55:31 +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 'nextstepbooks.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21606445614022617920082868302118307548906783730651459887632248026300793877524757726260810099865733631014036291821671699928619131204867296898616780948845829912070643149745224272758702297640684976658380784585003484263976826217191597902883065735604679083672433394983506493630564716937966647076556137261615676373744543599679189964402008611277906650440075572239499356132332320486120581200058046419982470477685611424580338570478363911288581842733950630478858073455064103301695159016474136969238272816759240356154022632119674158573614453345412455047744201296009706772955143589040000265421721513245873536602384307690490480729
 . . . . . . . . . . . . . . . . . . . . [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 (12 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: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)
							51ef62efa66483061098bef3a0b7beb282013471
 . . . . . . . . . . . . . . . . [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 d5fc9e0ddf1ecadd0897976e2bc55fc52bf5ecb8
 . . . . . . . . . . . . . . . . [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 (108 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.pki.goog/s/gts1p5/XlEkYZsmrgs'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://pki.goog/repo/certs/gts1p5.der'
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nextstepbooks.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.nextstepbooks.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 (26 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 1.3.6.1.4.1.11129.2.5.3
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (53 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crls.pki.goog/gts1p5/FCDFzEATB9g.crl'
 . . . . . . . . . . . . . . . . [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)
							00ef00760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018fdd868c15000004030047304502204fe8cb7e53317cead498965b4124e93a3a5a312b374399947b729ca2c7985720022100fc75deb3e6e9b5486246fc1edad544c775b48e3916d4b70b36f5363c308d4b040075001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018fdd868c080000040300463044022039fd8c5e87c321e6093ed8536459e0f67ecd771511c9b8c4a0d8d331b55f6f2002205eefbaeb7c702c06aead1da422b8254a08827d68756bf1dbbe1e7ba7791fffc9
 . . . . [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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