Future-Proof Your Business' internet Connectivity
The Speedify Bonding Protocol: Advantages Over Multipath TCP (MPTCP)
The Speedify protocol is engineered to deliver reliable, high-performance connectivity by bonding multiple internet links (e.g. Wi-Fi, Ethernet, cellular, satellite) and transmitting encrypted traffic over them via multiple TCP/UDP/HTTP(s) sockets.
Rather than relying on a single socket per link, Speedify creates multiple parallel sockets per connection - up to 8 sockets per link - enabling a single physical connection (e.g. Wi-Fi) to carry more throughput and be more resilient to packet loss or latency.
At any given moment, Speedify monitors each available link for latency, packet loss, and throughput, dynamically distributing traffic based on link quality, user preferences (cost, latency, metered vs non-metered), and overall optimization goals.
Speedify Protocol Architecture
How Speedify's Protocol Works
For each available internet source (e.g. Wi-Fi, 4G/5G, Ethernet), Speedify establishes multiple TCP (or UDP/HTTPS) sockets instead of a single one. This increases parallelism at the transport layer, allowing better utilization of high-speed or high-latency links.
If one socket experiences packet loss or latency spikes, only the packets on that socket are affected. Other sockets continue transmitting unaffected data, reducing the performance impact of unstable links. When a socket’s performance remains poor, Speedify can reassign its remaining packets to better-performing sockets.
This “multi-socket bonding + dynamic link management” ensures that aggregate throughput, latency, and reliability remain optimized — even when some links are degraded or drop completely.
Additionally, Speedify employs a component called Performance Enhancing Proxy (PEP) that accelerates TCP traffic over high-latency or lossy links (e.g. satellite, cellular). PEP re-packages outgoing TCP traffic into Speedify’s optimized transport protocol, then reassembles it at the server side. This mitigates the inefficiencies that standard TCP would suffer under adverse conditions.
Benefits for Enterprise & Distributed Teams / Product Infrastructure
For CTOs, product owners and business leaders managing distributed infrastructure, remote teams or globally dispersed users — the architectural advantages of Speedify’s protocol translate into:
- Consistent performance across heterogeneous networks: Whether users are on cellular, Wi-Fi, satellite or Ethernet, Speedify dynamically adapts to deliver the best usable throughput and minimal latency.
- Resilience against link failure or variability: Unlike single-path VPNs or MPTCP-based bonding (which degrade under packet loss/latency), Speedify maintains encryption, connectivity, and throughput, minimizing interruptions for video conferencing, remote operations, data sync, etc.
- Flexible deployment across platforms & device types: Broad OS/device support ensures that infrastructure works regardless of device type or operating system - useful for BYOD scenarios, remote contractors, and global teams.
- Bandwidth optimization and cost control: By prioritizing non-metered / wired / Wi-Fi links over cellular or metered ones, Speedify helps control data costs while maximizing performance.
- Simplified networking architecture: Instead of requiring specialized hardware or complex MPTCP configurations at each end, Speedify delivers a software-based bonding + encryption layer, reducing infrastructure overhead and easing rollout across an organization.
Speedify's Bonding Protocol Overview
Unlike round-robin schemes that treat all paths equally, Speedify's bonding algorithm weighs packet distribution decisions based on current path quality. The Speedify system accounts for:
Latency variance: Packets are preferentially routed through lower-latency paths to minimize out-of-order delivery at the receiver, reducing reassembly overhead
Asymmetric capacity: Paths with higher throughput capacity receive proportionally more traffic to maximize aggregate utilization
Loss characteristics: Paths experiencing elevated packet loss receive reduced traffic allocation or redundant packet transmission depending on application requirements
Cost considerations: User-defined policies can restrict expensive interfaces (metered cellular) to overflow traffic or backup scenarios
This results in typical efficiency rates approaching 95% of theoretical aggregate capacity under optimal conditions.
Benefit from the Smart Speedify Protocol in a Hardware Device
SPOTLIGHT: POWERED BY SPEEDIFY
Miri X510 Bonding Router
Bond up to 7 Links Simultaneously
Combine wired, Wi-Fi, 5G, and LTE connections plus Pair & Share with other Speedify users.
Battery-powered Portability
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Speedify scalable solutions for businesses of all sizes
Speedify's suite of networking tools can be deployed at any scale to deliver faster, more reliable internet to your entire office, campus, fleet, or user base.
Speedify's protocol uses multiple sockets per internet connection, enabling higher throughput even on a single link with high capacity or latency.
With its native AES-256 / ChaCha20 with DTLS encryption, the smart bonding protocol takes link quality handling to the next level, rerouting packets dynamically across sockets / links, minimizing the impact of packet loss, latency or link dropouts.
For environments with heterogenous networks - users switching between 5G / 4G cellular, Wi-Fi, satellite, Ethernet, etc.
For secure applications, where encryption is needed alongside bonding
For remote contractors, global teams, roaming users and everything in between
For operating environments with variable connectivity (mobility, remote locations)
Speedify Proven Track Record, Global Scale
Speedify has powered stronger Internet for millions since 2014
15M
Millions of Speedify downloads worldwide, and growing every day5⭐️
More than 75,000 Speedify 5-star reviews in the iOS and Android app stores82
Speedify points of presence in datacenters around the globe500TB
Hundreds of terabytes of fast, secure data streamed every week through SpeedifyThousands of organizations trust Speedify
Speedify Enterprise-Grade Solutions
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Speedify for Routers
Power your OpenWRT, GL.iNET, or Miri router with Speedify and combine Wi-Fi, Ethernet, 4G, 5G, Starlink and other satellite internet connections together.
Speedify Embedded Solutions and Integrations
Embed Speedify software into your app or hardware products and leverage the core channel bonding technology of Speedify in new and interesting ways.