www.hotelpallada.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e6:9c:85:ab:ae:6b:d3:58:05:84:21:d9:ef:47:df:0a:b1 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=www.hotelpallada.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e6:9c:85:ab:ae:6b:d3:58:05:84:21:d9:ef:47:df:0a:b1
Serial Number (int): 339809855812032331441681911863292517616305
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 24:66:a4:c0:5e:56:b7:62:7b:f8:0e:95:7d:61:14:b3:42:2b:d4:df
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 47:a6:f0:21:01:3c:2e:2b:e0:8c:8a:0d:c3:bc:50:d0:55:f7:d0:e4
Fingerprint (sha256): 30:a3:98:93:a8:31:25:93:97:e2:f8:04:02:e3:d9:da:f5:04:d7:42:10:d1:73:2c:9f:eb:10:75:d5:f7:83:a0

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 www.hotelpallada.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.hotelpallada.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

www.hotelpallada.com

Other certificates including the domain name hotelpallada.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.hotelpallada.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 339809855812032331441681911863292517616305
 . . . . . . . . [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 2019-11-30 03:52:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-28 03:52:12 +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 'www.hotelpallada.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 634336938463967079223810346815166876730576999058170008307116031310552635190880731663776808634955723064723604586774189143889083859515094239427210118077226356661674096211712563702556253184254746815939461912860604985779106914043216761404297763644383876483924962587827481461786728114082728097749527306538400481370343913143108393119859430150025507609686985600220868200125645838286555556152747041392325667801968562930338621619813818287446773944581368684520510031163390983584516583286006292001879804975525385484893711933192668190109117237815575905285471869379942660508967856608382036161853062756270202229539980065749390932663686069734097335463893244627875801552698063972811952559196055412313243608378293904011621976310928495932127946392634741522567778441565796900193253563435024788971025875759905404077028033033995377643399814350250722557165118478890387058354340205863780184662560187872559684530427536323813015560016279452191456805044902647426136800685936449925362426923510233862674091420263809266040825541233231342465076596160163871432867233149622040186706754040160173596812477810907004913734280797577487334842596464907624238128018222344588831610209437292926349959762080884678840873709420511255230750768802490213267436554111781000758322541
 . . . . . . . . . . . . . . . . . . . . [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)
							2466a4c05e56b7627bf80e957d6114b3422bd4df
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.hotelpallada.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 (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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ebaa6efbe0000040300483046022100cf759064cb46caff3844505a321ce03a5b4318d87753ebdbc97b5d231dd76a8e022100e22760eec6f328bbb48c1ac15aba347b398f3e84b55b5d67bbf512fab10f53f2007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016ebaa6efb00000040300483046022100a132839b7fb510e63ddf4c2881934bcadb356b3cc6f1f1a8119f37784658ff2a0221008238369626b8d11cbdeebf0f8c245d78ad2907a179dfe57044153cdb6a8ee2a1
 . . . . [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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