Knowledge Base & FAQ

HTTPS Proxies operate at the application layer (HTTP/HTTPS) and understand web traffic, headers, and SSL tunneling via the CONNECT method.

SOCKS4 Proxies operate at the transport layer (layer 4) and forward raw TCP streams without understanding application payload. They do not support UDP or authentication.

SOCKS5 Proxies are the most versatile: they support both TCP and UDP packets, client-side domain resolution (preventing DNS leaks), and optional authentication mechanisms.

No. When connecting to HTTPS websites, the client issues an HTTP CONNECT request to create a blind TCP tunnel. The TLS handshake occurs directly between your computer and the destination website. The proxy server sees only encrypted ciphertext and the target hostname/port.

Choose SOCKS5 when using non-HTTP applications, such as P2P clients, gaming connections, SSH sessions, streaming tools, or when you need UDP packet routing. SOCKS5 is also preferred for automation scripts where you want remote DNS resolution.

Telegram dedicated proxies utilize custom wire protocols encrypted with AES-CTR 256-bit cryptography. They employ domain fronting techniques and TLS SNI emulation (often masquerading as legitimate CDN traffic or major cloud services) so Deep Packet Inspection (DPI) firewalls cannot recognize the traffic as Telegram.

No. Telegram messages and media remain end-to-end encrypted with Telegram's client-to-server 256-bit protocol encryption. The proxy operator only acts as a network bridge and cannot read message plaintext or access your account credentials. Furthermore, your real IP is masked from destination servers.

Secrets starting with ee indicate "Fake TLS" emulation mode. This mode wraps the Telegram connection in a TLS envelope simulating a visit to a trusted public domain (e.g. google.com, cloudflare.com), successfully evading strict national and enterprise firewalls.

Yes. You can add as many proxies as you want into your Telegram app. Telegram maintains a list of proxies in its settings and automatically falls back to the fastest responsive node if one goes offline.

For Playwright:

const browser = await chromium.launch({
  proxy: { server: 'http://138.201.223.97:8443' }
});

For Puppeteer:

const browser = await puppeteer.launch({
  args: ['--proxy-server=http://138.201.223.97:8443']
});

We recommend a hard request timeout between 3,000ms and 5,000ms. Because transit latencies on public nodes can fluctuate, failing fast and retrying with another proxy from the live pool yields significantly higher throughput than waiting 30 seconds on a slow node.

NextProxy's backend runs an asynchronous background daemon that polls multiple edge mirrors every 10 seconds. It sanitizes records, discards invalid formats, updates protocol tallies, and replaces the in-memory cache atomically so client requests always access the latest pool.

Public proxies are volunteer or public transit servers. Network administrators frequently reboot nodes, adjust firewall rules, or cycle dynamic IPs. Our 10-second ingestion cycle and live socket verifier are specifically designed to filter out dead nodes in real-time.

ECONNREFUSED: The target IP reached the host, but the proxy daemon on that port is inactive or rejecting connections.

Connection Timed Out (ETIMEDOUT): The host dropped the TCP SYN packet, the host is offline, or an intermediate firewall (such as your local ISP or country gateway) dropped traffic to that destination. Use our Live Socket Verifier to benchmark the node before making bulk requests.

Use Telegram Dedicated Proxies or HTTPS proxies configured on standard web ports like 443 or 80. Firewalls typically permit outbound traffic on port 443 (standard HTTPS), allowing proxies on that port to pass through without being blocked.