www.steraflex.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8f:44:27:4e:4a:91:40:ad:f4:f9:2b:fc:33:c4:f6:56:88 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): 03:8f:44:27:4e:4a:91:40:ad:f4:f9:2b:fc:33:c4:f6:56:88
Serial Number (int): 310087827856201583982820005172909343921800
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b2:c8:08:04:de:80:40:b5:cd:1b:22:03:d8:ff:fa:d3:85:75:7b:fb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): de:02:1e:a3:b9:5f:a1:c1:95:19:8d:cf:6e:13:13:d2:28:38:e2:4d
Fingerprint (sha256): b0:4d:ef:02:d3:b9:17:1e:04:ae:7b:d4:94:d2:bd:d3:41:7a:77:88:f8:4c:41:e0:ae:48:ba:34:b4:9d:0d:6b

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 310087827856201583982820005172909343921800
 . . . . . . . . [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 2019-10-12 07:04:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 07:04:09 +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 795885864321067960877561386561360983689525646278684690061533455945083201964470835851752118620276675216505695676166923631585875684870312889760764293940877241055105808512163421844716059470798591097212854792441830448060216188588435741515301769192122337184806881757083010405403162131461468260123843059380290040576607390233272895599040939133879579394429418204408901204910647567447029817175898532508491937224303526575971829002253852743982252856357944146701254773322859684465041518507863620502893945144720575382751495759976007285391016457088547168224060409945483835158500644351449098656259137767923026466454929995785627213499565221758707757221371848345890232537583183515484259805311004661111514770753221562256968510776795652998978321041481260054271379121127109757804609777114154042912539276217229381505647139154098324318528091552359977520293943250542054623802106601889437633999777738838203180178773280722509364410000609019490582824187598445106030484260460556476940319920897309476858212532707971247497749174274566766812425358473360514689573619717509299389397006648878916727572007926619436621307922222217031581452627519323689331229126441512545598441474656283197179585024131020319780707359296041346769419459131930367621035873617214427973986067
 . . . . . . . . . . . . . . . . . . . . [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)
							b2c80804de8040b5cd1b2203d8fffad385757bfb
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dbeff0fce0000040300473045022100b4b009f3bbb837027172b4c57d829aacc1d03b83d963935892d16651ad21866902204a614ca9ed44502951fcb08cc52aa3f89f6ed0dc6c26b41175e7a3ef33e70f29007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dbeff1237000004030048304602210096c09dc804f74d0d9c8b057673896832b4e5696864fc36943a84e66e10177d930221008ffda8c4eed949b41293f86334b5503ab3350b43e1c07a3071823fa80a87b229
 . . . . [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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