About

This is not just a speedometer; it is a comprehensive diagnostic dashboard for your digital infrastructure. While standard tools provide a single throughput number, this utility dissects the quality of your connection. It analyzes Latency under Load (Bufferbloat), measures Jitter (packet delay variation), and cross-references your results against a database of real-world requirements.

Understanding network quality is critical. High throughput (Mbps) is useless for gaming if Jitter (ms) is high. Similarly, low latency is irrelevant for 4K streaming if bandwidth is insufficient. This tool provides a holistic audit, simulating traffic patterns to determine if your network is ready for 8K streaming, competitive eSports, or enterprise-grade video conferencing. All tests run client-side using the browser's Fetch API and Resource Timing API, ensuring privacy by design.

Formulas

The Throughput (T) is calculated using the payload size S (bits) and the duration d (seconds) of the transfer window, filtering out TCP Slow Start anomalies:

T = S_total − S_rampupt_end − t_start

Bufferbloat is derived by comparing unloaded latency (L_idle) with latency during active download (L_load). The bloat score B is the delta:

B = | L_load − L_idle |

If B > 100ms, the connection is graded poorly for real-time interaction.

Reference Data

Standard / Tech	Max Speed	Freq / Medium	Real-World Scenario & Limit
Dial-up (V.92)	56 Kbps	Phone Line	Text emails only. Unusable for modern web.
GPRS (2G)	114 Kbps	Cellular	Emergency GPS data, IoT sensors.
EDGE (2.5G)	384 Kbps	Cellular	Basic mobile sites (slow load).
3G HSPA+	42 Mbps	Cellular	Music streaming, 480p video.
4G LTE Cat 4	150 Mbps	Cellular	HD Video, Zoom calls.
4G LTE-A (Cat 16)	1 Gbps	Cellular	4K Streaming, Tethering multiple devices.
5G (Sub-6 GHz)	900 Mbps	Cellular	City-wide coverage, Low latency gaming.
5G (mmWave)	4 Gbps	Cellular (Line of Sight)	Instant downloads, Stadium connectivity.
WiFi 4 (802.11n)	600 Mbps	2.4 / 5 GHz	Legacy devices, IoT interference common.
WiFi 5 (802.11ac)	3.5 Gbps	5 GHz	Standard home WiFi. Good for VR/4K.
WiFi 6/6E (802.11ax)	9.6 Gbps	2.4 / 5 / 6 GHz	High density, low latency (OFDMA).
WiFi 7 (802.11be)	46 Gbps	Multi-Link	8K/16K Video, Industrial AR.
Ethernet Cat5e	1 Gbps	Copper (UTP)	Standard Gigabit home network.
Ethernet Cat6a	10 Gbps	Copper (STP)	Future-proof home, SMB Backbone.
Ethernet Cat8	40 Gbps	Copper (Shielded)	Data centers, Server uplinks.
Thunderbolt 4	40 Gbps	Active Cable	External GPU, 8K Monitors.

Frequently Asked Questions

Bufferbloat occurs when your router buffers (queues) too much data before sending it. When you max out your download connection (like someone streaming Netflix), your gaming packets get stuck in line behind the video packets. This causes massive lag spikes even if your speed is high. A low Bufferbloat score is crucial for smooth gaming.

WiFi is half-duplex and subject to interference, distance, and protocol overhead. 1 Gbps is the theoretical max of the cable entering your house. WiFi 5 (AC) typically tops out around 300-500 Mbps in real-world conditions due to walls and signal decay. Use a Cat6 Ethernet cable for true gigabit speeds.

Ping is the time it takes for a signal to travel to the server and back. Jitter is the *consistency* of that time. If your ping jumps from 20ms to 100ms and back, you have high jitter. This causes "stuttering" in VoIP calls and "rubber-banding" in online games.

Indirectly, yes. If your speed results are significantly lower than your plan's advertised speed consistently - especially during peak hours (7 PM - 10 PM) - it may indicate congestion or throttling. Compare results with a VPN active to see if speeds improve; if they do, your ISP might be shaping traffic.

Yes. Browsers process JavaScript differently and have varying limits on concurrent connections. Extensions (AdBlockers, Privacy tools) can also slow down processing. For the most accurate result, use a clean browser profile or Incognito mode.