webmail.szestabor.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:84:3e:ce:fe:e1:45:86:3b:ed:20:7d:b2:50:57:97:d9:0d 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=webmail.szestabor.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:84:3e:ce:fe:e1:45:86:3b:ed:20:7d:b2:50:57:97:d9:0d
Serial Number (int): 306337617147316032713613766877990897572109
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: a2:fd:b1:2d:9e:48:d7:23:24:82:f2:e7:09:ce:f7:e3:ee:28:7a:1a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 4c:52:76:31:b0:1f:d5:b6:e4:a1:93:b3:56:cc:2e:30:b6:df:1b:3d
Fingerprint (sha256): bf:43:94:d3:f3:04:13:4b:da:dc:78:fc:73:cf:17:7f:b2:a8:fd:14:45:97:8f:55:37:59:66:dd:6a:31:87:94

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 webmail.szestabor.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for webmail.szestabor.cz

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

webmail.szestabor.cz

Other certificates including the domain name szestabor.cz

(limited to 100 certificates)
szestabor.cz
rozvrh.szestabor.cz
szestabor.cz
botanicka.szestabor.cz
mail.szestabor.cz
rozvrh.szestabor.cz
rozvrh.szestabor.cz
szestabor.cz
botanicka.szestabor.cz
szestabor.cz
rozvrh.szestabor.cz
szestabor.cz
szestabor.cz
mail.szestabor.cz
botanicka.szestabor.cz
botanicka.szestabor.cz
szestabor.cz
szestabor.cz
botanicka.szestabor.cz
botanicka.szestabor.cz
szestabor.cz
szestabor.cz
szestabor.cz
szestabor.cz
botanicka.szestabor.cz
rozvrh.szestabor.cz
szestabor.cz
szestabor.cz
szestabor.cz
mail.szestabor.cz
rozvrh.szestabor.cz
rozvrh.szestabor.cz
botanicka.szestabor.cz
botanicka.szestabor.cz
botanicka.szestabor.cz
szestabor.cz
webmail.szestabor.cz
szestabor.cz
szestabor.cz
szestabor.cz
szestabor.cz
mail.szestabor.cz
rozvrh.szestabor.cz
mail.szestabor.cz
rozvrh.szestabor.cz
szestabor.cz
szestabor.cz
bakalari.szestabor.cz
szestabor.cz
mail.szestabor.cz
rozvrh.szestabor.cz
mail.szestabor.cz

Certificate

The complete raw certificate details for webmail.szestabor.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqUenNbww4eWe0rUGZA6M
gFZiWHD5gC2G7o4Wu7ZVJ3FZBiO7VgxLBxg3fe1eD4ERgZyX6UatlhX1pq3gNrfi
hXa4HkH9dRKqUtB7u9lm77zHE1p9f6W3gfsrsQ1LtYVyDsmpKBW9x8Ql2vVIF+JI
o+CRqQ+bp9ULinfkT2lambB0P006Oe/npJ6zq5B0MJkVoXJD4plniVcaK2k39Rq2
nrOvzUoVI80u/034gTUM6WGvrcgFCteWfh9sWIT556KdjQvfMUqlpWrBe9JtgIN3
XXSZtwKef3feJer6W5a5utPPa8Gwfo5i9IMuv7KofC6776r1iwIsuQD3dV32RKxy
qQIDAQAB
-----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 306337617147316032713613766877990897572109
 . . . . . . . . [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 2019-12-17 00:46:10 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-16 00:46:10 +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 'webmail.szestabor.cz'
 . . . . . . . . [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 21369607031173210569251096816135164733142505232678935298117292067605451451488064494466104924906007655258118456233975865995445213491852174388974541595111746836098795305122986501130749013823428559100008415136460005285263785378012509964700658705425264210106797863668697795247151403080948743657527874538307184800742099187300366917761891925487937151833248508814989816090511665001404619023412964590837087220775483873562260481861038512193115348546972626124469535793722751404981804412391378450467777268143530274987955491986600453835363488901966734009820398237069714140580690750640705997883522053144663554765887541890215867049
 . . . . . . . . . . . . . . . . . . . . [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)
							a2fdb12d9e48d7232482f2e709cef7e3ee287a1a
 . . . . . . . . . . . . . . . . [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 'webmail.szestabor.cz'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f1188b7b60000040300483046022100c002c86d4ca2b9d748ca2bfde5b194db8508651bcb1a750f82ee19d203a32276022100ccdadd120dc7fde909b0c4c802c6c693f177142eaaa8ce575cd7fecb60a550a4007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f1188b7ab00000403004730450220389e31485250a486d257af94f7972a9405ec24e85acd7db8a4cc7076f5f269d4022100c4398c71884ae78242dd8acba7fc7f623fd9bb8eb827342d84441c70f1d6885f
 . . . . [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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