learningandteaching.com

Issued by R3

About this certificate

This digital certificate with serial number 03:07:19:cf:66:b6:de:04:25:9c:08:39:7a:66:fd:81:a9:0e 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=learningandteaching.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:07:19:cf:66:b6:de:04:25:9c:08:39:7a:66:fd:81:a9:0e
Serial Number (int): 263753141952365664625812976078370048682254
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a0:32:d0:95:43:4e:c0:8f:13:88:2c:5a:ad:0e:3c:c8:55:5d:f5:fb
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:68:a0:9a:94:fb:26:e1:03:d8:11:7a:d2:f7:1a:5b:79:e0:4d:d0
Fingerprint (sha256): 90:eb:2f:4b:bf:60:a2:d3:48:41:86:e9:ea:2f:36:ea:50:ff:7c:3d:5c:ad:14:2b:64:5a:f7:68:9e:cc:d6:3e

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

Revocation information

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

Check the revocation status for certificate learningandteaching.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for learningandteaching.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

learningandteaching.com

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Certificate

The complete raw certificate details for learningandteaching.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 263753141952365664625812976078370048682254
 . . . . . . . . [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 2024-01-19 18:38:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-18 18:38:43 +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 'learningandteaching.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 743666593258256254946748518680560549293019082386576152667075807156452631345700338323731884554101168736991250680908920833764858084402701087371742549542932792241560254743208347094697120502640529631882419251651860240397384402684522800901883062371628123366660337622686720288172695439678250106488501888627519415909438805899529997166616099634741458312043816047270751050525489018359197201191092280618967500127158500292940906635501142162142521698801387219680709914048417937173209225821810539798417065323247302298850987590194358246813374155653935527506355897230297741039406703764927555402928827798262240208237881574301167407278561192795885460193185945081483460508966107764325122159887528050006326641045533299929905306243301395724895855341407256211914453220982742210035797737283232038866830614631330067798431500250407043904895520476397931303976151132684143522090770408831434201046914050802308592062196767274352036977892711306928984894591475083188093830656933766711453888746610470214220622870744329272171233703643739302900633700538917879885122451680515351548894573251267002810474101731752003716602796161538439817324039105125645332646230200909853829755527940188796338770394198749395694492199965695397901252391445176293423993852699408726744954791
 . . . . . . . . . . . . . . . . . . . . [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)
							a032d095434ec08f13882c5aad0e3cc8555df5fb
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learningandteaching.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d233b97d900000403004830460221009d59db6715b560a503b3e21a340c4390ee475a5feb3000c2be0fd2a452172eaa022100e1ed496aeb56dfe18b3bbdcce144b7346431b81bb12ab54d72089e9443b821b4007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d233b97ef00000403004830460221009d41c8bb968017b3a17706b0d361e88415636ddc49b8aff0db10ed7fda6a61f6022100d46a26ff820b8582c16ffcf718d3170d48e839727890ec7bc816f4689a55dd82
 . . . . [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)
		0034fe4227cf83b41bacab6f604d6c218609d3b510afe164842ec651e20189e310f88c2e905e5778434a6a124ed16739fdb1a222d0b3c9f9820296e168314964af28b37425b7f50316ee674db9892cc64f4d48ac7b03535fbdff2d209c4f3b815e832657b2cd2efaeeeba1ed39f9d94791dc184530c98411e0677d1b753f693ffd2fdd659d662ed6dc2b89ff9d1135aa768abaaf27ad36789ddb811e53783efa4191ca5a8f6dc22f5ae129a24427951badad28ac2a0dda7e174aab2d14e9c237a7e351ed42bf0c158d865bb90d354b2f12eb642826fe690f59e37cf26d7a2def32af04591031d7e66b2afcbe8ede596e86892fcea93d92937968132761a2656e49