Postfix smtpd

220 server.ruvimkondratyev.com ESMTP Postfix (Ubuntu)
250-server.ruvimkondratyev.com
250-PIPELINING
250-SIZE 10240000
250-VRFY
250-ETRN
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250-SMTPUTF8
250 CHUNKING

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            38:c3:ad:19:03:cb:db:25:36:2a:51:ad:f7:03:15:de:d3:d9:be:f0
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: CN=localhost.localdomain
        Validity
            Not Before: Feb 27 15:51:41 2022 GMT
            Not After : Feb 25 15:51:41 2032 GMT
        Subject: CN=localhost.localdomain
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:d1:b1:03:6d:ff:71:d6:81:23:5e:f0:c9:f4:52:
                    12:ed:9b:c5:24:2a:ea:a9:f3:b1:2c:1e:0a:8c:90:
                    1a:07:7d:f4:d9:73:9e:0e:ea:42:bf:cd:6d:66:46:
                    a2:14:3e:ea:2c:0c:80:32:33:09:3f:24:3d:73:03:
                    f3:66:14:d2:89:05:7e:f1:0a:c6:28:d1:50:5e:20:
                    2b:be:12:34:08:4c:50:04:27:0e:23:73:6d:a8:bf:
                    58:48:85:b3:31:12:97:99:b9:df:df:93:ee:92:89:
                    67:70:34:6a:03:28:4b:e4:0e:75:01:a0:fa:9a:0e:
                    7c:80:59:7b:7b:f5:b3:78:ee:b5:b6:52:16:28:e5:
                    71:29:10:08:bf:0f:02:31:dc:83:1f:2b:fc:1f:34:
                    3f:20:0f:9b:06:f1:83:57:37:43:a9:9b:6e:9c:49:
                    a9:c8:88:42:4a:06:5b:8e:99:57:ce:2e:d8:a8:db:
                    47:26:b2:6f:33:5f:d4:ef:1c:fe:62:ed:46:ce:48:
                    d3:4a:4c:49:ce:98:81:dd:a9:61:bd:be:9f:8c:30:
                    6f:55:46:50:d3:a5:8f:41:9c:af:ee:ba:e5:9e:3c:
                    68:6b:50:b8:21:42:4a:48:dd:6d:ac:ca:c6:d0:c7:
                    11:f1:0f:74:1c:31:c3:23:64:38:a8:6c:c4:48:4d:
                    9a:ab
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Subject Alternative Name: 
                DNS:localhost.localdomain
    Signature Algorithm: sha256WithRSAEncryption
    Signature Value:
        8f:c4:00:e8:79:9b:84:28:39:a5:aa:8e:ce:78:df:0e:09:27:
        ac:ef:b3:b4:bd:03:5a:27:cc:22:19:a9:b3:ee:9b:be:c1:e7:
        bf:2e:42:d0:cf:62:ea:5c:7f:1f:76:27:db:5f:39:c9:16:7e:
        ea:1a:e6:70:52:4a:29:bc:1e:ec:97:18:74:b6:a2:12:8b:09:
        42:2a:65:d5:86:4a:45:4e:fc:f1:a3:2a:2e:c9:81:ef:47:0d:
        1e:49:47:3d:4b:a6:ff:25:9e:58:db:8f:dc:d3:e1:34:c4:a1:
        b7:c8:72:16:77:52:60:7d:79:f4:d4:7a:2f:b3:fc:3d:e2:1c:
        5c:0a:b5:d8:96:eb:b6:f8:85:54:8b:1e:f9:13:e1:1c:3c:ad:
        88:23:73:d2:f9:c6:0e:0c:2b:b0:db:7f:07:29:eb:58:8d:6f:
        57:ca:e7:b5:97:c1:f0:eb:f6:4f:2f:88:0d:06:de:02:42:52:
        4a:de:10:56:2c:d4:7b:40:69:dd:c9:10:f9:49:89:22:77:57:
        b4:f6:de:1e:54:17:ed:c0:a1:03:9c:d9:5e:60:c4:0a:4b:2d:
        fc:b0:cb:c4:7f:7e:20:6f:2f:5c:17:b7:88:04:07:b3:20:3b:
        eb:2b:2a:00:91:79:35:f2:54:c1:dc:bb:3b:52:c7:8d:e2:cd:
        cc:65:02:37

nginx1.18.0

HTTP/1.1 200 OK
Server: nginx/1.18.0 (Ubuntu)
Date: Fri, 11 Apr 2025 00:32:39 GMT
Content-Type: text/html
Content-Length: 355
Last-Modified: Sat, 24 Dec 2022 01:14:12 GMT
Connection: keep-alive
ETag: "63a65264-163"
Accept-Ranges: bytes

Node.js

HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: text/html; charset=utf-8
Content-Length: 2633
ETag: W/"a49-dE2J3fY2bZe+b6DY8wgkoWtRphI"
Date: Mon, 07 Apr 2025 23:07:02 GMT
Connection: keep-alive
Keep-Alive: timeout=5

Apache httpd2.4.41

HTTP/1.1 200 OK
Date: Mon, 17 Mar 2025 17:12:06 GMT
Server: Apache/2.4.41 (Ubuntu)
Last-Modified: Sat, 24 Dec 2022 01:14:12 GMT
ETag: "163-5f0889eb2ac57"
Accept-Ranges: bytes
Content-Length: 355
Vary: Accept-Encoding
Content-Type: text/html