www.o2.lk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:28:48:1a:d7:3b:78:4a:f0:7f:b5:37:d9:f9:32:86:80:bb 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.o2.lk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:28:48:1a:d7:3b:78:4a:f0:7f:b5:37:d9:f9:32:86:80:bb
Serial Number (int): 275043996252962869497637799194982347079867
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 77:93:dd:47:11:32:64:e8:35:f8:bf:5f:9c:68:ca:19:7c:49:8d:93
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 01:28:74:13:3b:42:9c:a7:c4:3f:56:eb:f5:a4:f7:c2:92:3f:52:7d
Fingerprint (sha256): 40:ec:9b:1c:34:c1:1e:58:12:63:18:77:51:ce:69:45:d7:5d:0c:e7:14:53:a1:b7:07:57:31:7e:13:6c:9f:5b

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.o2.lk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.o2.lk

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

www.o2.lk

Other certificates including the domain name o2.lk

(limited to 100 certificates)
abc.3pm.app
o2.lk
www.o2.lk
o2.lk
o2.lk
www.o2.lk
referralportal.smeyegroup.com
app.o2.lk
o2.lk
demo.traceit.live
pay.o2.lk
www.o2.lk
www.o2.lk
connect.thrivexcel.com
o2.lk
ivf.curocura.com
www.o2.lk
hrm.senate.gov.so
www.o2.lk
o2.lk
o2.lk
o2.lk
pay.o2.lk
o2.lk
www.o2.lk
www.o2.lk
b2b.o2.lk
assistance.follosoft.com
o2.lk
www.o2.lk
www.o2.lk
o2.lk
support.cyrillcase.com
print.o2.lk
o2.lk
www.support.templogic.biz
o2.lk
www.o2.lk
o2.lk
helpdesk.verowave.com
o2.lk
www.o2.lk
o2.lk
pay.o2.lk
o2.lk
support.firstpagelife.com
pay.o2.lk
www.myzylkerportal.online
o2.lk
referralportal.smeyegroup.com
www.o2.lk
teamxhub.xtremesnowpros.com
o2.lk
www.o2.lk
o2.lk
o2.lk
o2.lk
o2.lk
www.o2.lk
www.myzylkerportal.online
pay.o2.lk
careers.avlc.llc
o2.lk
support.hsbintel.com
www.o2.lk
www.o2.lk
www.o2.lk
o2.lk
www.o2.lk
support.atklass.com
www.o2.lk
o2.lk
assistance.follosoft.com
pay.o2.lk
o2.lk
o2.lk
o2.lk
www.o2.lk
www.o2.lk

Certificate

The complete raw certificate details for www.o2.lk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuj2rgMjV7xuhuAVRCxGC
LwA/gaSmQ28DbuInrNV/6ofkGS8dMqefW8TTsrYgKbF1+8hKZotjRZqs+/iKkSIb
+hSZBQ9wQzP5h3ecwYbrPfzml8pw9Xfe+/w3hoINGAJ0M8UUBNSnxs59By5qugAe
L3VUVP0s8dYnkAQPb7LZQsx0MaofGPn+Aje7L6j++TUS02qMZFW5wDwTKiNvrocW
bIE3+69yw6+eeRcDxbHkW218cen1xzRaAQdo8ap0OZGmi4c/PpeHEGBgDNO8peCN
KqB1BDW6e0st6WFluj7DUMfCwtOe+p4ymELygFgXTgaW19+1vIeNAHgpAhgN9NB0
rwIDAQAB
-----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 275043996252962869497637799194982347079867
 . . . . . . . . [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 2020-02-12 02:21:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-12 02:21:52 +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.o2.lk'
 . . . . . . . . [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 23510735301483993993656708642591028271509183551035956890697835261197448940039715762977803142759181805038753359888658233815630090492010306352051635362489097195440290426767243008621273487583907844251323621843504591237325660181332133039273541086027706488961465276952036631557059914132547287666348756923131004402143025629472537046494993203397754109342001898105121466289351962522500595852575824990560248275111503562221432632873639418909098641974694842041010846462901594044105175572739305290983942666695025471810491002323037617718803778272962200036368832425337267446579309988358005934749408110582858453366723819246961325231
 . . . . . . . . . . . . . . . . . . . . [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)
							7793dd47113264e835f8bf5f9c68ca197c498d93
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.o2.lk'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170376ad1e50000040300473045022100dde274002a34584e8d2357e5a490581112c2f2d67a07ebc3a0b891ebdddd96850220790f605490726b4794b1b8a90714f9b7d0fa6ba8ae460173be94935040eb5915007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170376ad1d80000040300463044022046b0305425fe71f8b8f90682e13c44f6afb3dbe49482f1cfdafa4b04b3c8c99b022050ab29b60aff7aadd9d85cb8604e98627c9557fe82b1470bb5a8e40b1449c4fb
 . . . . [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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