calendar.ai

Issued by R3

About this certificate

This digital certificate with serial number 03:99:75:cf:a9:59:2c:d8:6a:eb:0c:87:c4:63:4e:5f:e4:ef 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:
  • 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=calendar.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:99:75:cf:a9:59:2c:d8:6a:eb:0c:87:c4:63:4e:5f:e4:ef
Serial Number (int): 313556657849933285170434603266973221512431
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4e:ac:14:95:29:5b:55:4d:bb:fe:e6:ac:72:60:1d:e1:63:dd:fd:b5
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 6a:34:0f:4a:fe:60:81:cf:57:4e:e0:a5:ba:5d:7a:92:2c:d6:7f:d5
Fingerprint (sha256): e8:95:73:26:5c:d9:bc:57:2d:6c:4e:35:ca:e4:25:f8:9f:0c:9e:67:18:84:b6:b4:99:e4:4f:94:38:c5:f1:10

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

Other certificates including the domain name calendar.ai

(limited to 100 certificates)
support-ios.calendar.ai
www.calendar.ai
links.calendar.ai
infowebbmedia.com
www.bestotaxi.com
www.calendar.ai
www.cointh.com
zehy.me
www.cointh.com
calendar.ai
electronicscalculator.schlez.page
support-ios.calendar.ai
fairy.mahoumorning.com
sqkii.land
ricshowdepremios.com.br
sqkii.land
calendar.ai
sixsens.holywood5000.shop
www.quicklyupdate.com
tuckeryazdani.com
calendar.ai
assets.jenosize.io
pro.calendar.ai
www.customfit.dev
www.quicklyupdate.com
www.calendar.ai
ricshowdepremios.com.br
www.ricobeti.ch
lascandelassf.com
support-android.calendar.ai
calendar.ai
www.bestotaxi.com
calendar.ai
gdgcloudhanoi.dev
bydlic.cz

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0E070RgFkzLlpPfX0QAh
0ZTYuHMgG5WlEAidIYVeTlXBNhretNjWWTgh43mzBOcu6/ANmm/W1bYB7BNDNUBb
MPbL6GHpe22mDqwaM+SSvTBNaApA+Wx0u28OapPTyDRfU9vGR9urmXKofmYKTiaV
NO59Ty1E490uFe94JYI9AbboYdKip/LsmrvLOq9e53hzPCJ9Bm9LMj2d+gvUnh4y
hH2LN3KNfgOoFY7jOp5ONhIdVIsk0QL69TPjL8ZjVw9aFdRTQQIdtU8+QEdiDwka
m14VcmGV+lQjeYiFYm/ETNPHkfu0snTBIpqerT0UPatuj2WM+/xveL+S0BJ3UfgZ
nwIDAQAB
-----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 313556657849933285170434603266973221512431
 . . . . . . . . [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 2023-11-12 21:46:01 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-10 21:46:00 +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 26295652769785544157583076828098338593391933337707940877751698825544800439120127911008240019018733981064088158081491486217735254517485075402548478901017232413922052033178789700300850941716183173493258059948768534270719887279480299361375385433512738226053010935870768847544933584167337541817381491643056675845358222940806271192798592865782983362136175158197411607969585944576038094637069658497042351546434027227084588748887671068688113004025633851582779818615815796540758747032373772978269348304672221593951556049661289682251623009680986295272389577225043687578575886482806894762632062088464431807337706886258759309727
 . . . . . . . . . . . . . . . . . . . . [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)
							4eac1495295b554dbbfee6ac72601de163ddfdb5
 . . . . . . . . . . . . . . . . [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)
							00ef00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018bc5b69eb20000040300473045022004adfe81c453087c3d2640644966cab7395f42c722345e4ba5f02caf4f8dc11502210086540b3444ea172e40525877011703810cf4b85e9a998bb41aaa3dbf7292be2f0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018bc5b69ec4000004030046304402204176b734560baf87f35c7961ff75940bcda1df555ba52bf3e244cd44c94de8cd02206730ce69dc21ddfe4e6cfdbc5e9a55ed0ac0c9bf8b7800cada256e1216b91d70
 . . . . [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)
		005d29f857304cef5691dbe1710cd17451c85989de49e121ade513c144574b9836c4912636adc8ccbf4ca7694a3ad8cce9633a193939aaa1937e2800ad427565a050099a45505c3d3292b637faa90ef73a857eb982fd4abad1272b2392422eaf608ef1b63fdec7a85ea2aa08d9ebb0ac28ab6b3dc06ecf027295acbc2926f0afc9aff81fef24445c830bb0bef23a13fcceb6375b3c1092b2fe3082df7ae7e3068d68416330539f56d87a4b98fbd8cda4cacde24053ad4b3ecedf66d4d16617b09d1ccad38476b560061b3d0398a3b659f7c331a63ef360037cc17ac538631b9f16dbca9198dc6fb57af2e3f59ba7fe8c2cd92fe158798a77d4d0d6743430e14a2a