Check your broadband or mobile internet speed in seconds. Measure ping, jitter, download, and upload speeds accurately.
Ping is response time (lower is better), Jitter is stability (lower is better). For gaming/calls, Ping < 20ms and Jitter < 5ms are ideal.
Usage requirements: Email/SNS: 1Mbps, Web: 5Mbps, HD Video: 10-25Mbps, 4K: 25Mbps+, Video Calls: 5-10Mbps, Gaming: 30Mbps+, Streaming: 10-50Mbps.
Evening (7-11 PM) is prime time with high congestion, especially for apartment fiber and cable internet.
WiFi 6 (9.6Gbps) and WiFi 5 (6.9Gbps) are fast, but wired CAT6 (1Gbps) is more stable and reliable due to less interference.
Slow fiber reasons: 1. Apartment VDSL (max 100Mbps), 2. Old LAN cable (CAT5 max 100Mbps), 3. Router performance, 4. ISP issues, 5. Not using IPv6.
4G LTE: Max 1Gbps (Actual 10-50Mbps), 5G: Max 20Gbps (Actual 100-1000Mbps). Varies greatly by area and congestion.
To improve speed: Use wired LAN (CAT6+), update router, switch to IPv6 (IPoE), restart devices, or stop unnecessary apps.
Even with the same fiber line, speeds vary by ISP due to equipment, user count, IPv6 support, and backbone capacity.
Results differ by site due to server location and method. Test on multiple sites (Fast.com, Speedtest.net) and take the average.
Upload speed is crucial for: Live streaming, cloud backups, screen sharing, gaming data, and sending large files.
Speed is data per second; Traffic is total monthly usage. High speed with heavy use increases traffic, risking mobile data caps.
Remote work needs: Web confer: 10-15Mbps, File share: 20-30Mbps, VPN: 10-20Mbps, Cloud apps: 5-10Mbps. 50Mbps+ recommended for multiple users.
Q1
Ping is response time (lower is better), Jitter is stability (lower is better). For gaming/calls, Ping < 20ms and Jitter < 5ms is ideal.
Q2
Email/SNS: 1Mbps, Web: 5Mbps, HD Video: 10-25Mbps, 4K: 25Mbps+, Video Call: 5-10Mbps, Gaming: 30Mbps+, Live Stream: 10-50Mbps.
Q3
Evenings (7-11 PM) are congested 'prime time', especially for apartment fiber and cable lines.
Q4
WiFi 6/5 are fast, but wired (CAT6) is more stable and reliable due to less interference and distance issues.
Q5
Common causes: Apartment VDSL (max 100Mbps), old CAT5 cable (max 100Mbps), router performance, ISP issues, or lack of IPv6.
Q6
4G LTE: Actual 10-50Mbps. 5G: Actual 100-1000Mbps. Heavily dependent on area, signal, and congestion.
Q7
Switch to wired LAN (CAT6+), update router firmware, use IPv6 (IPoE) ISP, restart devices, stop background apps.
Q8
Yes. ISPs differ in equipment, user density, IPv6 support, and backbone capacity, affecting speeds especially at night.
Q9
Server location, load, and testing methods vary. Average results from multiple sites (Fast.com, Speedtest.net) for better accuracy.
Q10
Live streaming, cloud backups, video calls (screen sharing), online gaming, and sending large files.
Q11
Speed is rate (Mbps). Traffic is volume (GB). High speed allows faster consumption, potentially hitting mobile data caps sooner.
Q12
Video calls: 10-15Mbps, File sharing: 20-30Mbps, VPN: 10-20Mbps, Cloud apps: 5-10Mbps. 50Mbps+ recommended for multiple active users.
Guideline for comfortable download speeds.
| Usage | Rec. Speed | Note |
|---|---|---|
| Email/LINE/SNS | 1Mbps+ | Works on low speed mode |
| Web Browsing | 10Mbps+ | 20Mbps for image-heavy sites |
| YouTube/Streaming (HD) | 25Mbps+ | 50Mbps+ for 4K |
| Zoom/Video Calls | 20Mbps+ | Upload 10Mbps+ also important |
| Online Gaming (FPS) | 50Mbps+ | Ping is most important |
Easiest fix. Unplug, wait 1 minute, plug back in.
Switch to 5GHz (often has 'a' or '5g' in SSID) for less interference and higher speed.
Wired LAN is much faster and stable than WiFi. Use CAT6 or higher cables.
If slow only at night, check if your ISP supports IPv6 (IPoE) and get a compatible router.