www.steraflex.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:73:07:ac:37:57:d8:81:23:ef:2c:98:bf:0f:62:7d:95:49 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.steraflex.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:73:07:ac:37:57:d8:81:23:ef:2c:98:bf:0f:62:7d:95:49
Serial Number (int): 300479528784711208862452036029248245175625
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c9:eb:52:9d:e6:7a:69:58:02:b3:34:91:d2:98:91:ea:eb:4c:89:a7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8f:f0:0f:e1:68:b3:23:96:a2:11:13:fe:69:c6:9e:1c:ce:06:07:8c
Fingerprint (sha256): d5:ee:83:65:9b:80:a8:9f:13:de:01:27:d1:9b:38:7f:61:19:10:af:b5:dd:3b:bc:04:67:1b:e3:75:0c:69:17

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.steraflex.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.steraflex.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

www.steraflex.com

Other certificates including the domain name steraflex.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.steraflex.com 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 300479528784711208862452036029248245175625
 . . . . . . . . [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 2020-02-13 05:15:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-13 05:15:43 +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.steraflex.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 941270625730859078686712152232944970527409141878189968802146545794051016157952767269960964669495288195712529340141179957444249350211115854300672874059360400319816203662723098173866699622009336065733763829985185283702691938864010063931741708158813882324538857840326165280050777344953964318726132149885243573328682902053069708826293532413005226794079265786840001764770250492855425124033413836803041590058220207791149388142528240268151423119518763853673363471240836131323183734410600687947939492811436913589685776028509625161168647443796240291136893307281917008322824263455687960994192198398251504684811836367484609311362695029436322634448457121708451812004619778307904994524594057989596923142124296297813028418343353228659098214484106434289607739271706146961436202112356758665303350844090509223938143788590142057326446292360998225881867289598990900736742141381681739897776845095002731958745758825211758939417242328806740790195492345373992659522717432085598694064560769607078165416258605023022451897545334364368166364234925637611534449111244161509698749598552838250782476258046552753411143663392943866693673477233937526579246404535435200400533954943166117436913996664840229945838629033872423739408544211814749820117240414223158585320021
 . . . . . . . . . . . . . . . . . . . . [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)
							c9eb529de67a695802b33491d29891eaeb4c89a7
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.steraflex.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001703d30570e000004030047304502202e14cb5ffd8c3e14f5d7430858045b13bf95d85a92360db6090f084d946ed48e022100a63ca65555f68478716ff056f228cfabfd25d0a0d1c0b68afe9cac5a3181f83500760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001703d3057380000040300473045022100d61ad5296d2899fd6649760fdf50fa22c3e096bb7bee22471461ed322f4b504b02203f4ee9bc895baad8335ebe4b0512f77533de4db8d5fe2d6c0c514dfdd02085d7
 . . . . [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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