rocketnews24.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:01:eb:71:e8:f9:28:aa:28:48:e5:40:3b:10:ef:37:02:67 was issued on by Let's Encrypt.

With 3 subject alternative names this certificate can be used to secure multiple fqdn's. 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=rocketnews24.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:01:eb:71:e8:f9:28:aa:28:48:e5:40:3b:10:ef:37:02:67
Serial Number (int): 261990100196015573690250382583014280856167
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2c:bd:6d:15:73:7b:b6:f9:79:52:b4:96:33:c0:31:3d:21:89:bc:e9
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0e:de:f5:c2:52:33:5c:be:12:cd:9c:5e:14:c5:e6:d2:a8:ed:3d:86
Fingerprint (sha256): 6e:fa:57:e0:31:a9:6f:fa:52:d5:ce:de:1e:44:72:11:0b:9c:cb:8c:1e:5f:29:df:57:8b:8d:21:55:01:d2:0d

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 rocketnews24.com

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for rocketnews24.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

en.rocketnews24.com
rocketnews24.com
www.rocketnews24.com

Other certificates including the domain name rocketnews24.com

(limited to 100 certificates)
tools.plan4tr.com
en.rocketnews24.com
rocketnews24.com
edgeapp.live
auth.rocketnews24.com
rocketnews24.com
tools.plan4tr.com
rocketnews24.com
www.proctr.tv
rocketnews24.com
rocketnews24.com
app.rocketnews24.com
website1230.estore.business
rocketnews24.com
rocketnews24.com
app.rocketnews24.com
edgeapp.live
tools.plan4tr.com
accounts.rocketnews24.com
tools.plan4tr.com
oaks-lab.com
rocketnews24.com
rocketnews24.com
hyppatia.com
tools.plan4tr.com
www.trade.blockonix.com
rocketnews24.com
tools.plan4tr.com
www.adrianoartesanatos.com
app.rocketnews24.com
app.rocketnews24.com
app.rocketnews24.com
rocketnews24.com
app.rocketnews24.com
rocketnews24.com
www.ajmermandur.ca
tools.plan4tr.com
warhead-solutions.com
spotaspot.link
phygitalhive.neonichevirtual.com
rocketnews24.com
rocketnews24.com
staging.charitypixel.org
healthfromnature.co
rocketnews24.com
www.rocket-hog.com
balance.investments
rocketnews24.com
tls.automattic.com
rocketnews24.com
tools.plan4tr.com
app.rocketnews24.com
en.rocketnews24.com
www.onautocustom.com
rocketnews24.com
en.rocketnews24.com
rocketnews24.com
rocketnews24.com
www.ajmermandur.ca
rocketnews24.com
app.rocketnews24.com
rocketnews24.com
myst.stomprocket.io
tools.plan4tr.com
papyrusrt.jahed.ca
rocketnews24.com
tls.automattic.com
rocketnews24.com
rocketnews24.com
rocketnews24.com
chnops42.xyz
firepad.fastapps.co
rocketnews24.com
en.rocketnews24.com
shadowwizardsllc.com
rocketnews24.com
rockeconomist.com
vcard.rvfsocietaagricola.bio
astorfotballklubb.dugnadsanbudet.no
www.creacl.co
website1230.estore.business
games.rocketnews24.com
rocketnews24.com
tools.plan4tr.com
en.rocketnews24.com
good360-test.cpptl.co
rocketnews24.com
rocketnews24.com
tools.plan4tr.com
rocketnews24.com
tools.plan4tr.com
tools.plan4tr.com
tools.plan4tr.com
rocketnews24.com
rocketnews24.com
auth.rocketnews24.com

Certificate

The complete raw certificate details for rocketnews24.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqye6apZvyoQnnRTTQDQQ
Rj77+Y4uN7DQcqxnInhrDXTLpmeTfs8cRosz+jl7HbzT/1azD6f2gVUNTdjrqsji
0DIwlp7AXw3ru6OHvoW0VTaIXIA3FW0aiBvd/+bDHAOuMrISWhXGF69YmZJInkFq
FkxewFlRSEzwzhLCknilDVNjBntK1jAHs0nKM2gyEfIYNWUEDdwv6w9eYuXfetek
4jZxBTQHfrSnSurIC4Gx8Y2M+LQbqk0ZBLCNb9WweyQhcz688r3+ZOv0nkYIYzOs
b2h312QMN1WLEqHN37F2TT+1+lCiGtPOXatiONGeFdSetFhQUhvJF91WRGsncYOQ
VwIDAQAB
-----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 261990100196015573690250382583014280856167
 . . . . . . . . [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 2017-09-11 12:35:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-12-10 12:35:00 +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 'rocketnews24.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 21606340849297200492210015038283992218762676714474837441332240330908137844981621602247769392927751920642272775574375446877832897720658904522455290734423857491239205283408827460242316213897738980555747819522632724790216825391784024906474790979416337318872858006033285049464859608270352707981937672889924882003101802096925246316521463710939785739545660156818055472217671969421200984806429327425309957638395565378374075054023045020164821929624460412277214520458792382070934707629745643259155575629755014599927017169523681119167656463534488624850182815251072726285373476041520397985271762662424529767836892355680081776727
 . . . . . . . . . . . . . . . . . . . . [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)
							2cbd6d15737bb6f97952b49633c0313d2189bce9
 . . . . . . . . . . . . . . . . [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 (63 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'en.rocketnews24.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rocketnews24.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rocketnews24.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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