obt.org

Issued by R3

About this certificate

This digital certificate with serial number 03:2f:5c:48:e2:ba:d0:d2:8b:e4:9b:4c:b4:9c:5b:2f:56:c6 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=obt.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:2f:5c:48:e2:ba:d0:d2:8b:e4:9b:4c:b4:9c:5b:2f:56:c6
Serial Number (int): 277452796460176510560568340238516205082310
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 04:af:9b:ce:b6:e5:50:fb:32:dd:68:7a:29:17:cb:71:02:80:43:36
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 34:a6:87:7b:8d:43:6c:0e:02:91:9e:fe:ea:27:4a:b6:ef:19:8d:6a
Fingerprint (sha256): be:ce:a2:19:54:f5:ac:b3:c9:17:9f:77:ff:93:a0:a4:cc:4f:93:b3:36:5d:8a:1c:06:59:74:af:ea:ce:8f:00

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate obt.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for obt.org

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

obt.org

Other certificates including the domain name obt.org

(limited to 100 certificates)
www.school.obt.org
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school.obt.org
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obt.org
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obt.org
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obt.org
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school.obt.org
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obt.org
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www.school.obt.org
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obt.org
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school.obt.org
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school.obt.org
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school.obt.org
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obt.org
obt.org
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obt.org
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school.obt.org
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secure-uswe2-1.tessituranetwork.com
obt.org
secure-uswe2-1.tessituranetwork.com
www.obt.org
mail.obt.org
secure-uswe2-1.tessituranetwork.com
www.obt.org
secure-uswe2-1.tessituranetwork.com
obt.org
obt.org
secure-uswe2-1.tessituranetwork.com
obt.org
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obt.org
mail.obt.org
www.school.obt.org
secure-uswe2-1.tessituranetwork.com
school.obt.org
www.obt.org
obt.org
www.obt.org

Certificate

The complete raw certificate details for obt.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxBlwB+/uOz2tBaGUYF63
kf65ch+7Fd1WXnQdu8iWfaAs+ivbQl5QI8Y8NIEmpMVCw3+dcZA/iVTWp8HHTWjZ
jHiqFZQrCJi02NF1wHGLy2d7PCGSGpV/H6OuaQkAmPT8K8908PLh//XnIrE3d43R
icZKjsp0K7LkgL9ZuRhz28r7vA9vDxh5ihQW0R+DbrBcDUmbdtJuxkWoVmIs50CA
5tHR46P4lH9+rJR+uVB52qs3kpzoljKyo+/OeELi2VWPJv9A8WqN3zuDqpRwBrkK
dPVHyj3OwtPOuu1Fnwxbhn461QSGlhqfKT4S4dI9fgKFhvB9LJ6WTlbHAnNEY8z7
bQIDAQAB
-----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 277452796460176510560568340238516205082310
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-03-28 20:25:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-06-26 20:25:42 +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 'obt.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 24755251531830345303265613669286026836811308069587667946103410145635273244211002082139950430040203801516723504553214156926308216662020776220005525812908604202843304979362161751081417471604472622786290507803756404556952946250917289239005795414217494866714174323368694189060449650332682209186558395729154891256571747143232601652082370744582093009319667126724133261552717064575361036840648170977272745297324111066089071396242492433450735347225781548475414220976966725116459023490371725707739048392129033680625866060172097406962963107967636047098253358967078755936134432547608953967405613584965334354008931342727577926509
 . . . . . . . . . . . . . . . . . . . . [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)
							04af9bceb6e550fb32dd687a2917cb7102804336
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'obt.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001872a1ccf2900000403004830460221009ceb730faadc4b428645730716177ef8079947c38b3a2f89f905e2580b593480022100b8ce00861cbd0517abba83e6441a148e4e5583e5c58876d08dd75b31c29bad3a0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb52000001872a1ccf360000040300463044022020a025a50f65850e488cdafb9368e1cbc99be618dcc40d40b8a1c7ed7fabe3fc022074aab18df5aab3bd98bf17a75e471707ab765aa4ad326f5ee2bd0454e0995bf8
 . . . . [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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