The SpeedPulse Blog
Understand your connection: what good speeds are, why fast internet still lags, and how we measure it.
Your Speed Test Is Lying to You: Introducing Jitter, Bufferbloat Grades and Real-World Verdicts
940 Mbps down and your video call still froze? Raw bandwidth is only half the story. SpeedPulse now measures jitter, grades bufferbloat A+ to F, and tells you what your connection is actually good for — here's what changed and why it matters.
Read the announcementUnder the Hood: How a Browser-Only Speed Test Measures Jitter, Bufferbloat and 8 CDN Latencies
No app, no backend, no ICMP — just a browser tab. The exact methodology behind SpeedPulse's jitter sampling, bufferbloat grading and multi-CDN latency panel, including the no-cors favicon trick and the limitations we're honest about.
Read more →Speed Test Comparison 2026: SpeedPulse vs Ookla vs Fast.com vs Waveform
A head-to-head comparison of the major browser speed tests: which measure jitter, which grade bufferbloat, which explain their scores, and which let you export data without an account — plus the methodology gaps most tests never mention.
Read more →What Is Bufferbloat? Why Fast Internet Still Lags — and How to Actually Fix It
Bufferbloat is the hidden latency that appears when your router's buffers fill up during downloads and uploads. Learn how it works, how to test it, what an A+ to F grade means, and the router settings that fix it for good.
Read more →Internet Speed Requirements for Zoom, Teams & Video Calls
Video calls need surprisingly little bandwidth - but they need it stable. Learn the exact download and upload speeds Zoom, Teams, Meet and FaceTime need for HD and group calls.
Read more →How Much Internet Speed Do You Need for 4K Streaming?
Netflix, YouTube and Disney+ recommend 25 Mbps for 4K, but the real number is higher. Learn how much speed you need for 4K streaming - and how many streams your plan can handle.
Read more →What Is a Good Ping for Gaming? (Lag-Free Benchmarks by Game Type)
Ping is the single most important metric for online gaming. Learn what a good ping is for competitive FPS, MOBAs, MMOs and casual games - and how to lower yours.
Read more →Mbps vs MB/s: What's the Difference? (Why Your Downloads Look Slow)
Confused why your 100 Mbps plan downloads at 12 MB/s? Learn the difference between Mbps (megabits) and MB/s (megabytes), how to convert between them, and why it matters.
Read more →What Is Jitter? Network Jitter Explained (and How to Fix It)
Jitter is the variation in latency between data packets, and it causes lag, stuttering and dropped calls. Learn what jitter is, what a good jitter number is, and how to reduce it.
Read more →What Is a Good Download Speed? (Mbps Guide for Every Use)
Wondering if your internet is fast enough? This guide explains what a good download speed is for streaming, gaming, video calls and working from home - with Mbps benchmarks for 2026.
Read more →Internet Keeps Dropping? 9 Causes (and How to Stop Disconnections)
Random internet disconnects are frustrating and often misdiagnosed. Learn the 9 most common reasons your internet keeps dropping - from the router to the ISP - and how to fix each.
Read more →How to Fix High Ping: 8 Ways to Lower Your Latency
High ping causes lag in gaming, video calls and remote desktop. Learn the 8 most effective ways to lower your ping, from Ethernet to router settings to ISP routing.
Read more →Why Is My Internet Slow? 10 Real Causes (and How to Fix Each)
Slow internet has dozens of possible causes - and most are fixable without changing your ISP. Here are the 10 most common reasons your internet is slow and exactly what to do about each.
Read more →Verizon Fios Speed Test: Getting the Most From Your Fiber Connection
Verizon Fios is one of the best home internet services in the US. Here's how to test your Fios speed properly, what to expect from each plan, and how to fix common Fios performance issues.
Read more →AT&T Speed Test: Are You Getting Your Fiber or DSL Speed?
Run a proper AT&T speed test to check your fiber or DSL connection. Learn what speeds to expect from AT&T plans, why DSL is slower, and how to troubleshoot AT&T internet issues.
Read more →Comcast Xfinity Speed Test: How to Check If You're Getting Your Plan Speed
Think your Xfinity internet is slower than you pay for? Here's how to run a proper Comcast Xfinity speed test, what speeds to expect by plan, and how to troubleshoot slow Xfinity connections.
Read more →