calendar.ai

Issued by R3

About this certificate

This digital certificate with serial number 03:27:8c:0c:48:64:26:7c:54:e8:5b:ed:d2:7c:7b:4d:ba:37 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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=calendar.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:27:8c:0c:48:64:26:7c:54:e8:5b:ed:d2:7c:7b:4d:ba:37
Serial Number (int): 274794025800437749107567984530227670661687
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c7:ea:c0:1e:34:75:f4:7a:6a:e5:03:ce:70:eb:39:0f:52:c2:17:89
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 50:7b:9a:3c:28:06:c8:25:d3:e9:b9:e1:73:20:4a:44:cc:5f:3a:14
Fingerprint (sha256): 9f:b6:0c:63:9b:8f:2c:fe:31:af:d6:f2:68:15:78:c3:c8:f5:a5:0a:ed:d3:80:9b:bb:e4:ff:16:e9:a7:10:ba

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

Revocation information

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

Check the revocation status for certificate calendar.ai

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for calendar.ai

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

calendar.ai
www.calendar.ai

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www.quicklyupdate.com
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www.customfit.dev
www.quicklyupdate.com
www.calendar.ai
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Certificate

The complete raw certificate details for calendar.ai in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtf3n1iH7lDGE/9k4yvT0
XFb9N4ZSeQojZx1pwzkSc5ppJna90vYL/hlWR7oOxs++MihmOZa6k3q/7LWtqC9U
iEX/cSWUh5BQpUPymd9i6aZAm0QZE4oKhQJ2cvI/5HjvThOVSRcsUjnNT5Lv/OSG
1/4jvjmf+6DXC5K3mOY0Ww4swOqbAy29FGgVe8g2mQngr4fN9Gr8OTU57Kv0GBZQ
NBfyY3B/JuO6ZSQ8EegZ1ASusMyp4Rk+w+8tz1WlVFVU851PHhrAGZTL4v4BCRSf
Ie8w5Y0EYkWH/YwPMIcjngQR6LpoknK/CNM2phXOtmJw4GzfPjkSNsj4SHqg125k
wQIDAQAB
-----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 274794025800437749107567984530227670661687
 . . . . . . . . [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 2023-07-15 13:09:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-13 13:09:03 +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 'calendar.ai'
 . . . . . . . . [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 22974338722191585612437456595566615962783673676385100611890775096798586176595534177244271340181849382474567816635540741183313070966166880159770240076465997103106329828887368905291382856415854709760453689447788907601662224682848616556194501686447079195526560455689025668801700293561296392709976627084674359150084624712749234287469371816993720093099544695221689034403178610539909836508521135471862009489942493927885273381753434802489983154656266949980355506267266737691314623394597282995450914738733701041282234177509982883575921228158270243503099994491670858857798905512438824757707381409481593556194350626597506016449
 . . . . . . . . . . . . . . . . . . . . [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)
							c7eac01e3475f47a6ae503ce70eb390f52c21789
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'calendar.ai'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.calendar.ai'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018959e2364000000403004630440220213721d021dc2f11a53e06cc831607ad516cd6d620902c7a24214eefebc7536a02200f5f3239e40db3789d678485859005314dcfcaefe808e8ecaf0f772ab8cdb78c007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018959e2363b0000040300473045022100ae5fb886475fa55a0f99474686d72027ebd354b50af5c9d9cf3d8f9e69ecee62022053be34675403b4191f8afaf1eaaecf56f49d50a170f0db57277fdb6a6a47a659
 . . . . [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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