Ok, verovatno rade blocking na samom sajtu, koristeci neku Geo-IP white/black listu. Inace, evo razlike izmedju toga kada se koristi EU i US adresa:
Adresa iz EU
Code:
traceroute to byjus.com (52.77.80.199), 64 hops max, 52 byte packets
[snipped]
7 ae-4.r25.amstnl02.nl.bb.gin.ntt.net (129.250.3.222) 59.959 ms 63.594 ms 60.414 ms
8 ae-9.r23.sngpsi07.sg.bb.gin.ntt.net (129.250.4.9) 224.726 ms * *
9 ae-1.r01.sngpsi07.sg.bb.gin.ntt.net (129.250.4.94) 231.233 ms
ae-1.r00.sngpsi07.sg.bb.gin.ntt.net (129.250.4.134) 222.844 ms
ae-1.r01.sngpsi07.sg.bb.gin.ntt.net (129.250.4.94) 223.420 ms
10 ae-0.amazon.sngpsi07.sg.bb.gin.ntt.net (116.51.17.26) 224.925 ms
ae-1.amazon.sngpsi07.sg.bb.gin.ntt.net (116.51.18.166) 223.874 ms
ae-0.amazon.sngpsi07.sg.bb.gin.ntt.net (116.51.17.26) 224.002 ms
11 52.93.10.206 (52.93.10.206) 232.374 ms * *
12 52.93.11.91 (52.93.11.91) 230.218 ms
52.93.11.85 (52.93.11.85) 226.647 ms
52.93.11.11 (52.93.11.11) 224.437 ms
13 * 52.93.11.24 (52.93.11.24) 238.193 ms
52.93.11.30 (52.93.11.30) 224.605 ms
14 52.93.9.137 (52.93.9.137) 230.585 ms
52.93.9.27 (52.93.9.27) 223.607 ms
150.222.108.161 (150.222.108.161) 229.246 ms
15 15.230.29.118 (15.230.29.118) 224.766 ms
150.222.108.170 (150.222.108.170) 227.957 ms
150.222.108.150 (150.222.108.150) 225.091 ms
16 * * *
17 * * *
18 * * *
s% curl -vvv -L https://byjus.com/
* Trying 52.77.80.199...
* TCP_NODELAY set
* Connected to byjus.com (52.77.80.199) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/cert.pem
CApath: none
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: OU=Domain Control Validated; CN=byjus.com
* start date: May 7 12:37:53 2020 GMT
* expire date: May 7 12:37:53 2022 GMT
* subjectAltName: host "byjus.com" matched cert's "byjus.com"
* issuer: C=US; ST=Arizona; L=Scottsdale; O=GoDaddy.com, Inc.; OU=http://certs.godaddy.com/repository/; CN=Go Daddy Secure Certificate Authority - G2
* SSL certificate verify ok.
> GET / HTTP/1.1
> Host: byjus.com
> User-Agent: curl/7.64.1
> Accept: */*
>
* HTTP 1.0, assume close after body
< HTTP/1.0 200
< Cache-Control: no-cache
< Connection: close
< Content-Type: text/html
<
<html>
<head>
<title> GDPR </title>
</head>
<body style="text-align: center; margin-top: 6%">
<h1>Service Unavailable in EU region</h1>
Adresa iz US
Code:
[snipped]
8 saiqa-ext-gw2-et-1-3-0.jnpr.net (66.129.224.2) 6.003 ms sea-edge-13.inet.qwest.net (65.152.21.9) 4.433 ms saiqa-ext-gw2-et-1-3-0.jnpr.net (66.129.224.2) 5.821 ms
9 sea-edge-15.inet.qwest.net (67.14.41.158) 4.553 ms sea-edge-15.inet.qwest.net (67.14.41.162) 4.506 ms sea-edge-13.inet.qwest.net (65.152.21.9) 4.359 ms
10 63-235-42-186.dia.static.qwest.net (63.235.42.186) 4.481 ms sea-edge-15.inet.qwest.net (67.14.41.158) 4.584 ms 4.571 ms
11 ae-2-3615.edge6.Seattle1.Level3.net (4.69.219.210) 4.856 ms 4.818 ms 63-235-42-186.dia.static.qwest.net (63.235.42.186) 4.552 ms
12 ae-1-3515.edge6.Seattle1.Level3.net (4.69.219.206) 4.865 ms 4.861 ms ae-7.r05.sttlwa01.us.bb.gin.ntt.net (129.250.9.180) 5.099 ms
13 ae-2.r22.sttlwa01.us.bb.gin.ntt.net (129.250.2.44) 5.148 ms ae-6.r23.sttlwa01.us.bb.gin.ntt.net (129.250.2.88) 5.404 ms ae-7.r05.sttlwa01.us.bb.gin.ntt.net (129.250.9.180) 5.050 ms
14 * * ae-6.r23.sttlwa01.us.bb.gin.ntt.net (129.250.2.88) 5.246 ms
15 ae-13.r30.tokyjp05.jp.bb.gin.ntt.net (129.250.4.143) 109.027 ms 89.691 ms 108.018 ms
16 ae-0.r31.tokyjp05.jp.bb.gin.ntt.net (129.250.5.22) 95.413 ms ae-0.r25.osakjp02.jp.bb.gin.ntt.net (129.250.2.151) 96.812 ms ae-0.r31.tokyjp05.jp.bb.gin.ntt.net (129.250.5.22) 89.816 ms
17 ae-1.r01.sngpsi07.sg.bb.gin.ntt.net (129.250.4.94) 162.331 ms ae-4.r23.sngpsi07.sg.bb.gin.ntt.net (129.250.2.242) 156.900 ms ae-1.r00.sngpsi07.sg.bb.gin.ntt.net (129.250.4.134) 154.004 ms
18 ae-0.amazon.sngpsi07.sg.bb.gin.ntt.net (116.51.17.26) 157.640 ms ae-3.r00.sngpsi07.sg.bb.gin.ntt.net (129.250.2.97) 163.358 ms ae-29.r01.sngpsi07.sg.bb.gin.ntt.net (129.250.2.149) 157.727 ms
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
]$ curl -vvv -L https://byjus.com/
* Trying 52.77.80.199...
* TCP_NODELAY set
* Connected to byjus.com (52.77.80.199) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: OU=Domain Control Validated; CN=byjus.com
* start date: May 7 12:37:53 2020 GMT
* expire date: May 7 12:37:53 2022 GMT
* subjectAltName: host "byjus.com" matched cert's "byjus.com"
* issuer: C=US; ST=Arizona; L=Scottsdale; O=GoDaddy.com, Inc.; OU=http://certs.godaddy.com/repository/; CN=Go Daddy Secure Certificate Authority - G2
* SSL certificate verify ok.
> GET / HTTP/1.1
> Host: byjus.com
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 303 See Other
< Cache-Control: no-cache
< Content-length: 0
< Location: https://byjus.com/us/
<
* Connection #0 to host byjus.com left intact
* Issue another request to this URL: 'https://byjus.com/us/'
* Found bundle for host byjus.com: 0x55860008ba50 [can pipeline]
* Connection 0 seems to be dead!
* Closing connection 0
* TLSv1.2 (OUT), TLS alert, Client hello (1):
* Hostname byjus.com was found in DNS cache
* Trying 52.77.80.199...
* TCP_NODELAY set
* Connected to byjus.com (52.77.80.199) port 443 (#1)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* SSL re-using session ID
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-AES256-GCM-SHA384
* ALPN, server did not agree to a protocol
* Server certificate:
* subject: OU=Domain Control Validated; CN=byjus.com
* start date: May 7 12:37:53 2020 GMT
* expire date: May 7 12:37:53 2022 GMT
* subjectAltName: host "byjus.com" matched cert's "byjus.com"
* issuer: C=US; ST=Arizona; L=Scottsdale; O=GoDaddy.com, Inc.; OU=http://certs.godaddy.com/repository/; CN=Go Daddy Secure Certificate Authority - G2
* SSL certificate verify ok.
> GET /us/ HTTP/1.1
> Host: byjus.com
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Sun, 31 Jan 2021 12:30:13 GMT
< Content-Type: text/html; charset=UTF-8
< Transfer-Encoding: chunked
< Server: Apache
< Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
< X-Frame-Options: SAMEORIGIN
< Vary: Accept-Encoding,User-Agent
<
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<base href="https://byjus.com/" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="robots" content="index,follow">
<title>The BYJU'S Learning App featuring Disney</title><meta name="description" content="Help fuel your child's love
...