Jenee

Internet Speed Test

Measure your internet connection speed (Ping, Jitter, Download speed, Upload speed) with one click. Perfect for checking fiber optic, ISP, and mobile WiFi speeds.

How to Use

  1. STEP 1
    Simply click the 'Start Speed Test' button to automatically measure Ping, Jitter, download speed, and upload speed.
  2. STEP 2
    For more accurate results, stop other applications and downloads during the test.
  3. STEP 3
    After completion, you can run the test again anytime with the 'Retry Test' button.
  • Test results may vary depending on your environment, time of day, and server load.
  • For more accurate measurements, please stop other applications and downloads.
  • WiFi connections may show slower speeds compared to wired connections.
  • The measurement results from this service are reference values and do not guarantee actual communication speeds.

Tips & FAQ

  • QUESTION 1

    What are Ping and Jitter?

    Ping is response time (lower is better), and Jitter is the variation in response times (lower is more stable). Ideal values are Ping under 20ms and Jitter under 5ms for gaming and video calls.

  • QUESTION 2

    Speed requirements by usage type?

    Email/SNS: 1Mbps, Web browsing: 5Mbps, HD video: 10-25Mbps, 4K video: 25Mbps+, Video calls: 5-10Mbps, Online gaming: 30Mbps+, Live streaming: 10-50Mbps (varies by quality).

  • QUESTION 3

    Why do speeds vary by time of day?

    Evening hours (7-11 PM) see peak usage called 'prime time' with network congestion. This is especially noticeable with apartment fiber connections and cable internet.

  • QUESTION 4

    WiFi vs Wired connection speed difference?

    WiFi 6 (802.11ax): up to 9.6Gbps, WiFi 5 (802.11ac): up to 6.9Gbps, Wired (CAT6): up to 1Gbps. However, wired connections are typically more stable due to no interference or distance limitations.

  • QUESTION 5

    Why is my fiber connection slow?

    Common causes: ①Apartment VDSL (100Mbps max) ②Old LAN cables (CAT5 = 100Mbps limit) ③WiFi router performance ④ISP infrastructure ⑤No IPv4 over IPv6 support.

  • QUESTION 6

    Mobile network (4G/5G) speeds?

    4G LTE: up to 1Gbps (real-world 10-50Mbps), 5G: up to 20Gbps (real-world 100-1000Mbps). Actual speeds vary greatly by coverage area, time, and tower congestion.

  • QUESTION 7

    Specific methods to improve speed?

    ①Switch to wired connection ②Use CAT6+ LAN cables ③Update to latest WiFi router ④Switch to IPv6 (IPoE) ISP ⑤Test at different times ⑥Restart devices ⑦Close unnecessary apps/software.

  • QUESTION 8

    Do ISPs affect speed differently?

    Yes, even on the same fiber network, ISPs can have different speeds due to infrastructure investment, user count, IPv6 support, and backbone capacity. Evening speed differences are most noticeable.

  • QUESTION 9

    Why do different speed test sites show different results?

    Test server location, load, methodology, and data sizes vary between sites. Test with multiple sites (Fast.com, Speedtest.net, etc.) and use the average as reference.

  • QUESTION 10

    When is upload speed important?

    ①Live streaming/video uploads ②Cloud storage backups ③Video conference screen sharing ④Online gaming data transmission ⑤Remote work file transfers require good upload speeds.

  • QUESTION 11

    Relationship between speed and data usage?

    Speed is 'data per second', usage is 'total monthly consumption'. High speed doesn't mean high usage, but large content consumption increases usage and may trigger mobile data throttling.

  • QUESTION 12

    Required speeds for remote work?

    Video conferencing: 10-15Mbps, File sharing: 20-30Mbps, VPN: 10-20Mbps, Cloud apps: 5-10Mbps. For multiple users/devices, 50Mbps+ is recommended.

This information is general in nature. For details, please check with your ISP or network provider.