=== REQUEST HEADERS ===
Accept: application/json
Accept-Encoding: gzip
User-Agent: Dalvik/2.1.0 (Android) OkHttp
X-Package-Name: vpn.goldenvpn.unblock
X-App-Version: 2.1.0
X-Firebase-App: 1:250249565590:android:b4cef1cddc09a3c95c39b7
X-Persistence-Key: [DEFAULT]
X-SID: 2261
X-Requested-With: XMLHttpRequest
Accept-Language: en-US,en;q=0.9
Referer: https://newversion-app-data.com/
Origin: https://newversion-app-data.com

=== CURL INFO ===
{
    "url": "https:\/\/newversion-app-data.com\/api\/v4\/apps\/settings",
    "content_type": "application\/json; charset=utf-8",
    "http_code": 521,
    "header_size": 416,
    "request_size": 477,
    "filetime": -1,
    "ssl_verify_result": 0,
    "redirect_count": 0,
    "total_time": 0.086607,
    "namelookup_time": 0.006339,
    "connect_time": 0.018123,
    "pretransfer_time": 0.039627,
    "size_upload": 0,
    "size_download": 962,
    "speed_download": 11107,
    "speed_upload": 0,
    "download_content_length": 962,
    "upload_content_length": 0,
    "starttransfer_time": 0.086563,
    "redirect_time": 0,
    "redirect_url": "",
    "primary_ip": "172.67.177.102",
    "certinfo": [],
    "primary_port": 443,
    "local_ip": "5.9.74.58",
    "local_port": 43204,
    "http_version": 3,
    "protocol": 2,
    "ssl_verifyresult": 0,
    "scheme": "https",
    "appconnect_time_us": 39572,
    "connect_time_us": 18123,
    "namelookup_time_us": 6339,
    "pretransfer_time_us": 39627,
    "redirect_time_us": 0,
    "starttransfer_time_us": 86563,
    "total_time_us": 86607,
    "effective_method": "GET",
    "capath": "",
    "cainfo": "\/etc\/pki\/tls\/certs\/ca-bundle.crt"
}

=== HTTP STATUS: 521 ===

=== RESPONSE HEADERS & BODY ===
{
    "type": "https://developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-521/",
    "title": "Error 521: Web server is down",
    "status": 521,
    "detail": "Cloudflare attempted to connect to the origin web server, but the connection was refused. The origin is down, blocking Cloudflare IPs, or not accepting connections on the configured port.",
    "instance": "a1461cab4c7e2dc1",
    "error_code": 521,
    "error_name": "origin_down",
    "error_category": "origin",
    "ray_id": "a1461cab4c7e2dc1",
    "timestamp": "2026-07-01T14:31:01Z",
    "zone": "newversion-app-data.com",
    "cloudflare_error": true,
    "retryable": true,
    "retry_after": 120,
    "owner_action_required": true,
    "what_you_should_do": "**Wait and retry.** Back off for at least 120 seconds. If the error persists, the origin is offline or blocking Cloudflare — the website operator must restart the origin or whitelist Cloudflare IPs.",
    "footer": "This error was generated by Cloudflare on behalf of the website owner."
}