mta-sts.alexandercsd.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:30:ff:30:14:00:43:6f:01:5a:25:77:30:e8:13:41:9f:eb 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=mta-sts.alexandercsd.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:30:ff:30:14:00:43:6f:01:5a:25:77:30:e8:13:41:9f:eb
Serial Number (int): 278009614182329211171273008880684579790827
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d8:8c:73:36:d9:de:92:91:3a:46:78:0d:fc:c6:0b:fc:8d:6a:8f:41
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 00:ba:b8:f7:f0:eb:28:ae:9f:58:14:36:39:11:d3:8e:16:04:40:bb
Fingerprint (sha256): a4:68:b1:77:bf:fd:62:5c:8a:5b:02:2a:67:92:21:c1:9e:87:af:4b:fc:aa:11:d0:5e:18:21:a1:1f:9c:d6:7b

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 mta-sts.alexandercsd.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mta-sts.alexandercsd.org

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

mta-sts.alexandercsd.org

Other certificates including the domain name alexandercsd.org

(limited to 100 certificates)

Certificate

The complete raw certificate details for mta-sts.alexandercsd.org 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 278009614182329211171273008880684579790827
 . . . . . . . . [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 2020-01-23 12:00:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-22 12:00:43 +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 'mta-sts.alexandercsd.org'
 . . . . . . . . [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 935541049486074557248379849139591064623876360146868011261833755055516691715219518632745954262456485920583919357519475275979578362020576670087695989229550709306345029863194841357295298499559328270157371792724713092276614793402296264800367669698545340505330807937072584391929718255585631944909843548367931362331975495840611506969319598396842267676315190591874272405058585518718048510392050507469795704543223403379606280268881815745129118118967764273739085019250603438187220858881197112280291654425777445138918959075001784505484240254211423350519099727794313176573753228312033356906328043814822243921146448228097212990313057714537548054388517770992754275873478010485382754101794693527743407446940445269544686662223903945546670063322027374962395644802248583115916266424263949453765237949119712671600863028397216346950282870067171220996118095773926072960353756828680658635832502865027781255751900813556227427111538831709303659416030252030585182424937462992165065601034431160298576536004926333496010501563638280649815527185308872375724711616976435942977740889830335184742109312118811076417644415849187803401215490674427568463614723913437375688486268859858332525373940439780414024587490866980770612157340527400784620407142784340401408359801
 . . . . . . . . . . . . . . . . . . . . [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)
							d88c7336d9de92913a46780dfcc60bfc8d6a8f41
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mta-sts.alexandercsd.org'
 . . . . . . . . . . . . . . . . [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)
							00f1007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016fd27d97500000040300473045022100bab315e83c5dc736afc35317d2aac345fd141a35e12b25653602cca9619f261602201f2b598a66f7d11ea4298ef4b9cbdb5377994998d91cc73230db6629137287b10077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016fd27d97810000040300483046022100be79fcfe1aa147c170d5322063e0599c1709f95f0bc52b5f9e80d48fadf7e0ce022100bc31536841fd263b86789e39fce0dda9146d57b3fff0313f003952d9726147f1
 . . . . [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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