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HTTP/1.1 200 OK Date: Mon, 21 Sep 2026 04:07:07 GMT Server: Apache Content-Language: vi Content-Script-Type: text/javascript Content-Style-Type: text/css X-UA-Compatible: IE=edge Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, no-transform Pragma: no-cache Expires: Mon, 20 Aug 1969 09:23:00 GMT Accept-Ranges: none X-Frame-Options: sameorigin Set-Cookie: MoodleSession=q9s5lvvm25mohv6fdr7akqr3n7; path=/; secure Upgrade: h2 Connection: Upgrade, close Last-Modified: Mon, 21 Sep 2026 04:07:07 GMT Vary: Accept-Encoding Transfer-Encoding: chunked Content-Type: text/html; charset=utf-8
SSL Certificate
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
05:c6:69:ca:b9:28:f4:39:ac:93:79:bf:cb:b6:fa:a4:23:be
Signature Algorithm: sha256WithRSAEncryption
Issuer: C=US, O=Let's Encrypt, CN=YR1
Validity
Not Before: Aug 6 01:21:53 2026 GMT
Not After : Nov 4 01:21:52 2026 GMT
Subject: CN=thcsah.id.vn
Subject Public Key Info:
Public Key Algorithm: rsaEncryption
Public-Key: (2048 bit)
Modulus:
b1:bb:02:a1:42:f7:88:44:2f:da:7f:05:28:60:aa:05:
59:aa:7f:aa:9f:b3:59:f0:1d:00:86:93:95:8b:02:4f:
93:a9:a4:99:60:54:f6:f3:cf:89:8f:5e:2d:3e:05:ce:
30:75:ef:5f:e8:59:e7:51:d1:d9:5b:32:e8:8b:ae:71:
78:5b:6c:fa:0f:5c:50:7a:21:66:08:cf:89:32:58:1a:
af:b9:7b:d8:69:cd:d8:60:67:c6:d4:bd:38:81:99:f1:
60:01:65:bf:82:29:ef:2e:36:e2:11:43:da:10:8b:58:
4e:c5:d6:45:7d:fa:10:fd:a8:6f:3c:81:8f:ad:1b:12:
69:c3:fd:47:98:e6:2d:26:bc:71:e1:f6:ec:51:44:66:
11:24:81:93:d1:f9:b2:6b:b7:09:45:81:17:99:ef:5f:
86:b0:fc:6b:87:7a:3d:55:6c:f6:f4:72:fc:ea:78:70:
25:e2:c9:e6:c2:da:35:30:da:b5:37:b7:13:bf:e1:5b:
16:91:da:36:57:dc:a5:f8:77:db:99:ef:62:58:6f:35:
3b:6c:5e:22:3d:b5:e8:59:27:24:a6:a0:37:b1:34:36:
00:cd:c2:78:7b:aa:f1:89:c3:ba:12:0b:a5:21:ac:27:
09:67:0e:60:c9:45:ab:5a:c8:f3:aa:a3:b6:d5:80:f9
Exponent: 65537 (0x10001)
X509v3 extensions:
X509v3 Key Usage: critical
Digital Signature, Key Encipherment
X509v3 Extended Key Usage:
TLS Web Server Authentication
X509v3 Basic Constraints: critical
CA:FALSE
X509v3 Subject Key Identifier:
66:55:68:AE:2E:60:03:B7:AA:A3:DA:7F:3F:88:E9:B5:0E:28:C1:FB
X509v3 Authority Key Identifier:
1F:2F:35:BE:46:14:82:CD:40:B1:AE:79:2C:55:78:FA:F7:D4:68:FB
Authority Information Access:
CA Issuers - URI:http://yr1.i.lencr.org/
X509v3 Subject Alternative Name:
DNS:thcsah.id.vn, DNS:www.thcsah.id.vn
X509v3 Certificate Policies:
Policy: 2.23.140.1.2.1
X509v3 CRL Distribution Points:
Full Name:
URI:http://yr1.c.lencr.org/63.crl
CT Precertificate SCTs:
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D:
E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A
Timestamp : Aug 6 02:20:23.679 2026 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:D3:84:C8:A7:F7:B6:5C:D1:6E:6A:2F:
B6:1E:E9:C5:29:D7:64:0B:20:CC:51:57:90:73:76:17:
39:1C:C9:70:BD:02:21:00:A4:B7:24:43:7A:73:DC:8C:
43:D5:62:82:BD:CA:FC:49:31:0C:1D:7C:F4:34:15:25:
CE:34:19:E2:83:5E:EF:8D
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 26:E3:64:6E:58:69:21:23:BC:34:3F:47:24:35:9B:37:
92:CD:24:5A:88:D8:15:D3:93:33:FD:99:18:AB:47:23
Timestamp : Aug 6 02:20:22.506 2026 GMT
Extensions: 00:00:05:00:31:BC:2B:8F
Signature : ecdsa-with-SHA256
30:45:02:21:00:8D:C8:75:37:28:17:24:76:B5:5F:52:
A0:C1:C0:73:EA:F9:14:7A:EC:D1:26:29:02:7E:97:36:
82:D5:A0:38:1C:02:20:55:A1:EA:C7:37:74:27:3E:2F:
9B:21:C7:FA:0C:2F:3B:C9:91:8D:0E:6B:AB:55:C6:D2:
BC:31:E8:63:E2:A3:22
Signature Algorithm: sha256WithRSAEncryption
Signature Value:
59:a6:4a:54:ee:aa:11:9b:be:7c:0f:a4:53:74:36:4a:6e:22:63:cb:7e:db:a9:2d:
69:f4:76:3c:dd:65:6a:a8:ab:57:8a:5d:b0:7b:bc:83:64:b3:b7:5a:77:f4:1b:b6:
0a:08:04:96:13:88:26:8e:92:b1:a7:5b:ed:54:69:83:66:c0:da:6a:27:20:de:77:
c0:f3:83:fe:c8:5d:5a:42:6f:8d:cb:6c:f8:31:46:c1:95:99:c2:10:84:1b:68:61:
82:f1:f1:fd:93:f4:bf:1b:a9:eb:36:02:b7:37:24:48:ba:cd:64:d0:ed:7a:6e:83:
9d:3a:b5:b8:2e:ae:9f:72:1e:59:40:bd:6a:1f:7c:08:67:46:4d:8b:1a:14:3c:10:
73:18:8d:c8:2d:8e:12:57:2b:ef:8f:e5:a4:d2:72:66:59:aa:6f:a1:a9:3c:5e:a1:
15:42:1b:0e:95:db:fb:3e:5b:ca:6f:39:44:47:db:dd:b9:1c:33:95:bc:ca:07:36:
1f:2c:b4:6e:d2:03:bb:2a:97:e1:e4:ba:03:69:69:17:32:5d:06:83:8e:3e:83:94:
29:01:27:d2:72:b9:3c:9e:4d:34:18:a7:5f:d7:5b:41:8b:96:e9:cb:da:e1:a0:d4:
45:ba:1a:6f:ca:dd:98:0c:50:50:9f:d4:ef:3c:2a:1b