Geelinx, an IDC provider founded by students studying in the United Kingdom and Japan, currently sells low-cost VPS in Japan, the United Kingdom, and the Netherlands. Its Japan region uses Netlab. Although that upstream has been widely criticized, Geelinx's friendly pricing has still made it quite popular.

I previously wrote a launch review of Geelinx. Recently I found that, whether in the Geelinx customer group or in my own tests, the JP product's single-thread return-to-China speed often cannot reach the advertised bandwidth, being limited to around 50Mbps (though there are also reports in the Geelinx customer group of no speed limit), while multi-thread tests do not show this phenomenon.I do not know whether this is due to upstream Netlab policy or Geelinx's own limit (Update: according to the provider, they were deceived, and sold 50M machines ). I also do not know whether the limit is by region or by IP/host. Expectations for so-called "route machines" should be lowered further. After all, the provider itself said this is not a route machine. For now, it is still okay for unlocking Netflix and Disney+ and serving as a backup for Unicom and Telecom users. xhj031

(1) Network quality

Speed: across multiple regional carriers (five locations in the Yangtze River Delta and Pearl River Delta), single-thread return-to-China speeds are limited below 50Mbps, except Shanghai Telecom in the test, which can reach 200Mbps+ both day and night. Telecom basically runs right against the 50M single-thread limit. Unicom and Mobile are similar but slightly slower than Telecom; Guangzhou Unicom and Foshan Mobile in the test are QoS-limited to Kbps levels during the evening peak. Multi-thread can break through this limit, but still cannot reach the advertised bandwidth. The improvement over before is that the previous cutout issue did not appear, and all tests completed smoothly.

Latency: Telecom and Unicom latency increases slightly during the evening peak. Overall packet loss and jitter are acceptable, though a few regions have packet loss and jitter both day and night. Mobile latency is higher than Telecom/Unicom, and it jitters severely during the evening peak; NetQuality also measured fairly serious TCP ping packet loss in most provinces and cities.

Routes: return routes are unchanged: Telecom 163, Unicom 10099, Mobile CMI. Outbound uses each network's own direct backbone route, all entering NTT; compared with launch, this is a downgrade. Previously I measured Telecom CN2->NTT, Unicom 4837 direct, and Mobile through Lumen.

International: local landing nodes can almost saturate 300Mbps, and US West can also nearly saturate. Seattle latency is 88 ms+, Los Angeles is 99 ms+. IPv6 quality is still poor; even pinging local v6 gives 60 ms+ latency. Cloudflare speed-test nodes may even be assigned to Taiwan, doubling latency, and speed is worse than v4. I recommend disabling v6 or changing outbound priority to v4.

(2) IP quality

Anycast/broadcast IP. IPQuality measured full IPv4 international streaming unlock and correct location, but JP local streaming is basically not unlocked. IPv6 is from Geelinx's own AS, with poor unlock and confusing geolocation: Google places it in the UK, Bing and Apple in the US, so latency is high.

(3) Machine performance

The CPU is a domestic Zhaoxin, roughly similar to E5. Single-core is mediocre, while the doubled launch multi-core is still decent. Geekbench 5 scores are 640 single-core and 2408 multi-core, down 12.3% and 14.8% from the launch test respectively. I/O has not changed much and remains fairly poor.

All tested products were purchased at my own expense; this article has no affiliate links.

Product Configuration
Plan 🇯🇵 GeeLinx JP.TYO.BGP-A-P
Location Japan, Tokyo
CPU 4 x Zhaoxin KH-4000 vCores
RAM 4GB
Disk 20GB
Traffic 800GB(outbound billing)
Peak Bandwidth 300Mbps
Return Route Telecom 163/Unicom10099/Mobile CMI
Outbound Route Telecom 163/Unicom 4837/Mobile CMI
Network 1 x IPv4, 1 x /64 IPv6
Price Annual EUR€16.88

Provider website: https://www.geelinx.com

Test Overview
Live Probe YABS Node Quality Mixed Benchmark nws.sh Streaming Unlock
[Link] [Link] [Link] [Link] [Link] [Link]

1. Network Quality

Single-Thread Return-to-China Speed Tests
Evening Peak Off-Peak
Single-thread & Multi-thread Speed Test Comparison
Single-thread Multi-thread
NetQuality 
bash ‹(curl -sL https://Check. Place) -N
Evening Peak Off-Peak
Evening Peak Outbound TCP Ping 
Test Site: itdog.cn
Test Time: 2026-03-10 22:00
China Telecom China Unicom China Mobile
Off-Peak Outbound TCP Ping 
Test Site: itdog.cn
Test Time: 2026-03-10 10:00
China Telecom China Unicom China Mobile
Return Routes 
bash ‹(curl -sL https://Check. Place) -N

Outbound Routes 
Test Site: itdog.cn
Test Time: 2026-03-12 17:00
ShanghaiTelecom ShanghaiUnicom Shanghai Mobile
bgp.tools 
Test Site: bgp.tools
Test Time: 2025-03-12 17:00
IPv4 IPv6
Web Latency 
bash <(wget -qO- https://raw.githubusercontent.com/danger-dream/network-latency-tester/main/latency.sh)
IPv4 Preferred IPv6 Preferred
International Latency(iplark) 
Test Site: iplark.com
Test Time: 2025-03-12 17:00
IPv4 IPv6
Own-node Tests 
Test Method: iPerf3 TCP single-thread & ICMP Ping, one 10-second run
Test Time: 2025-03-12 17:00

IPv4

iPerf3 ICMP Ping

IPv6

iPerf3 ICMP Ping
Cloudflare Local Speed Test 
wget -qO- https://github.com/code-inflation/cfspeedtest/releases/latest/download/cfspeedtest-x86_64-unknown-linux-gnu.tar.gz | tar xz && ./cfspeedtest -n 25; rm ./cfspeedtest

v6 was assigned to a Taiwan speed-test node.

IPv4

Avg GET request latency 44.16 ms (RTT excluding server processing time)

Type     Payload |  min/max/avg in mbit/s
Download  100KB  |  min 6.37    max 25.74   avg 17.43  
Download  1MB    |  min 48.00   max 146.34  avg 114.48 
Download  10MB   |  min 200.06  max 260.02  avg 249.53 
Upload    100KB  |  min 20.95   max 57.47   avg 46.45  
Upload    1MB    |  min 84.68   max 249.93  avg 189.78 
Upload    10MB   |  min 164.03  max 279.26  avg 253.91

IPv6

Avg GET request latency 92.75 ms (RTT excluding server processing time)

Type     Payload |  min/max/avg in mbit/s
Download  100KB  |  min 3.16    max 9.01    avg 6.78   
Download  1MB    |  min 36.33   max 81.16   avg 67.89  
Download  10MB   |  min 17.91   max 226.20  avg 126.21 
Upload    100KB  |  min 4.77    max 15.19   avg 11.04  
Upload    1MB    |  min 21.59   max 122.64  avg 81.08  
Upload    10MB   |  min 81.24   max 185.07  avg 153.35
Apple Local Speed Test 
curl -sL nxtrace.org/speedtest | bash

▸ Idle Latency
  [+] Endpoint: https://mensura.cdn-apple.com/api/v1/gm/small
  [+] Samples: 20
      ➜  103.95 ms median  (min 99.62 / avg 105.08 / max 117.73)  jitter 0.95 ms

  ▸ Download (single thread)
  [+] Threads: 1
  [+] Limit: 2G / 10s per thread
      ➜  273 Mbps  (329.0 MiB in 10.1s)
  [+] Loaded latency: 104.28 ms  (jitter 0.38 ms)

  ▸ Download (multi-thread)
  [+] Threads: 4
  [+] Limit: 2G / 10s per thread
      ➜  276 Mbps  (331.8 MiB in 10.1s, 4 threads)
  [+] Loaded latency: 103.61 ms  (jitter 0.59 ms)

  ▸ Upload (single thread)
  [+] Threads: 1
  [+] Limit: 2G / 10s per thread
      ➜  131 Mbps  (156.1 MiB in 10.0s)
  [+] Loaded latency: 103.89 ms  (jitter 0.43 ms)

  ▸ Upload (multi-thread)
  [+] Threads: 4
  [+] Limit: 2G / 10s per thread
      ➜  254 Mbps  (306.2 MiB in 10.1s, 4 threads)
  [+] Loaded latency: 113.15 ms  (jitter 1.09 ms)
Speedtest International Test 
curl -sL nws.sh | bash

---------------------------------- nws.sh ---------------------------------
      A simple script to bench network performance using speedtest-cli     
---------------------------------------------------------------------------
 Version            : v2025.11.07
 Global Speedtest   : wget -qO- nws.sh | bash
 Region Speedtest   : wget -qO- nws.sh | bash -s -- -r <region>
 Ping & Routing     : wget -qO- nws.sh | bash -s -- -rt <region>
---------------------------------------------------------------------------
 Speedtest.net (Region: GLOBAL)
---------------------------------------------------------------------------
 Location         Latency     Loss    DL Speed       UP Speed       Server      

 ISP: NetLab Global 

 Nearest          1.14 ms     1.4%    286.56 Mbps    279.01 Mbps    サーバーならDDPS.jp - Tokyo 

 Bangalore, IN    187.84 ms   0.0%    150.96 Mbps    484.87 Mbps    Bharti Airtel Ltd - Bangalore 
 Chennai, IN      165.81 ms   0.0%    94.16 Mbps     470.47 Mbps    RailTel Corporation of India Ltd - Chennai 
 Mumbai, IN       193.32 ms   0.0%    83.75 Mbps     585.58 Mbps    Melbicom - Mumbai 

 Seattle, US      167.57 ms   N/A     94.01 Mbps     405.35 Mbps    Comcast - Seattle, WA 
 Los Angeles, US  175.29 ms   0.0%    113.81 Mbps    372.07 Mbps    ReliableSite Hosting - Los Angeles, CA 
 Dallas, US       269.36 ms   0.0%    98.37 Mbps     522.71 Mbps    Hivelocity - Dallas, TX 
 Miami, US        243.39 ms   0.0%    101.35 Mbps    447.31 Mbps    Frontier - Miami, FL 
 New York, US     146.90 ms   0.0%    313.95 Mbps    282.78 Mbps    GSL Networks - New York, NY 
 Toronto, CA      276.13 ms   0.0%    100.00 Mbps    275.83 Mbps    Rogers - Toronto, ON 
 Mexico City, MX  FAILED                                                        

 London, UK       275.97 ms   0.0%    98.75 Mbps     500.76 Mbps    VeloxServ Communications - London 
 Amsterdam, NL    FAILED                                                        
 Paris, FR        307.85 ms   0.0%    98.35 Mbps     289.59 Mbps    Scaleway - Paris 
 Frankfurt, DE    FAILED                                                        
 Warsaw, PL       380.44 ms   23.6%   96.69 Mbps     287.97 Mbps    Play - Warszawa 
 Bucharest, RO    330.76 ms   0.0%    95.07 Mbps     365.05 Mbps    Digi        
 Moscow, RU       FAILED                                                        

 Jeddah, SA       334.87 ms   0.0%    102.01 Mbps    210.53 Mbps    Saudi Telecom Company 
 Dubai, AE        141.06 ms   N/A     320.89 Mbps    319.63 Mbps    e& UAE - Dubai 
 Istanbul, TR     346.91 ms   0.0%    90.93 Mbps     238.99 Mbps    Turkcell - Istanbul 
 Tehran, IR       FAILED                                                        
 Cairo, EG        251.89 ms   0.0%    280.25 Mbps    197.17 Mbps    Telecom Egypt - Cairo 

 Tokyo, JP        FAILED                                                        
 Shanghai, CU-CN  74.04 ms    N/A     90.80 Mbps     354.84 Mbps    China Unicom 5G - Shanghai 
 Hong Kong, CN    FAILED                                                        
 Singapore, SG    79.03 ms    0.0%    288.01 Mbps    281.01 Mbps    ViewQwest - Singapore 
 Jakarta, ID      84.18 ms    0.0%    285.91 Mbps    276.07 Mbps    PT Solnet Indonesia - Jakarta 

 Sydney, AU       256.12 ms   0.0%    93.61 Mbps     18.93 Mbps     Aussie Broadband - Sydney 
---------------------------------------------------------------------------
 Avg DL Speed       : 153.55 Mbps
 Avg UL Speed       : 339.39 Mbps

 Total DL Data      : 4.52 GB
 Total UL Data      : 11.03 GB
 Total Data         : 15.55 GB
---------------------------------------------------------------------------
 Duration           : 15 min 11 sec
 System Time        : 10/03/2026 - 19:26:00 CST
 Total Script Runs  : 520832
---------------------------------------------------------------------------
 Result             : https://result.nws.sh/r/1773141963_J1P7ZD_GLOBAL.txt
---------------------------------------------------------------------------

2. IP Quality

IPQuality 
bash ‹(curl -sL https://Check. Place) -I

Streaming Unlock 
bash <(curl -L -s check.unlock.media)
IPv4 IPv6
Common IP Database Checks 
export noninteractive=true && curl -L https://raw.githubusercontent.com/oneclickvirt/ecs/master/goecs.sh -o goecs.sh && chmod +x goecs.sh && ./goecs.sh install && goecs

--------------------------------------IP Quality Check--------------------------------------
The following are database IDs; results include the corresponding source database IDs
ipinfo Database  [0] | scamalytics Database [1] | virustotal Database   [2] | abuseipdb Database   [3] | ip2location Database    [4]
ip-api Database  [5] | ipwhois Database     [6] | ipregistry Database   [7] | ipdata Database      [8] | db-ip Database          [9]
ipapiis Database [A] | ipapicom Database    [B] | bigdatacloud Database [C] | dkly Database        [D] | ipqualityscore Database [E]
ipintel Database [F] | ipfighter Database   [G] | fraudlogix Database   [H] | cloudflare Database  [I] |
IPv4:
Security Score:
Trust Score(higher is better): 100 [8] 
VPN Score(lower is better): 0 [8] 
Proxy Score(lower is better): 0 [8] 
Community Votes - Harmless: 0 [2] 
Community Votes - Malicious: 0 [2] 
Threat Score(lower is better): 0 [8] 
Fraud Score(lower is better): 0 [E] 
Abuse Score(lower is better): 0 [3 H] 
ASN Abuse Score(lower is better): 0 (Very Low) [A] 
Company Abuse Score(lower is better): 0 (Very Low) [A] 
Threat Level: low [9 B] Low [H]
Traffic Share: Human(higher is better)6% [I] Bot(lower is better)93% [I]
Blacklist Record Statistics (number of blacklist sites with records):
Harmless Records: 0 [2]  Malicious Records: 0 [2]  Suspicious Records: 0 [2]  No-record Count: 94 [2] 
Security Info:
Usage Type: residential [H] business [0 7 9] Commercial [3] unknown [C]
Company Type: hosting [7] business [0 A]
Browser Type: Mainstream77% Other22% [I] 
Device Type: Desktop96% Mobile3% Other0% [I]
OS Type: Mainstream90% Other9% [I] 
Is Cloud Provider: Yes [7 D] 
Is Data Center: Yes [A] No [0 5 8 C G H]
Is Mobile Device: No [5 A C G] Yes [E]
Is Proxy: Yes [G] No [0 4 5 7 8 9 A B C D E H]
Is VPN: No [0 7 A C D E G H] 
Is Tor: No [0 3 7 8 A B C D E H] 
Is Tor Exit: No [7 D] 
Is Web Crawler: No [9 A B E] 
Is Anonymous: No [7 8 D] 
Is Attacker: No [7 8 D] 
Is Abuser: No [7 8 A C D E] 
Is Threat: No [7 8 C D] 
Is Relay: No [0 7 8 C D] 
Is Bogon: No [7 8 A C D] 
Is Bot: No [E H] 
DNS Blacklist: 309(Total_Check) 0(Clean) 0(Blacklisted) 0(Other) 
IPv6:
Security Score:
Abuse Score(lower is better): 0 [3 H] 
ASN Abuse Score(lower is better): 0 (Very Low) [A] 
Company Abuse Score(lower is better): 0 (Very Low) [A] 
Threat Level: low [B] Low [H]
Traffic Share: Human(higher is better)6% [I] Bot(lower is better)93% [I]
Security Info:
Usage Type: Commercial [3] residential [H]
Company Type: business [A] 
Browser Type: Mainstream77% Other22% [I] 
Device Type: Desktop96% Mobile3% Other0% [I] 
OS Type: Mainstream90% Other9% [I]
Is Data Center: Yes [A] No [G H]
Is Mobile Device: No [A G] 
Is Proxy: No [A B H] Yes [G]
Is VPN: No [A G H] 
Is Tor: No [3 A B H] 
Is Web Crawler: No [A B] 
Is Abuser: No [A] 
Is Bogon: No [A] 
Is Bot: No [H] 
DNS Blacklist: 309(Total_Check) 0(Clean) 0(Blacklisted) 309(Other)
iplark Check Score 
Test Site: iplark.com
Test Time: 2025-03-12 17:00
IPv4 IPv6

3. Machine Performance

HardwareQuality 
bash ‹(curl -sL https://Check. Place) -I

YABS 
curl -sL https://yabs.sh | bash -s -- -5 -i

# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #
#              Yet-Another-Bench-Script              #
#                     v2025-04-20                    #
# https://github.com/masonr/yet-another-bench-script #
# ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## ## #

Thu Mar 12 02:53:26 PM CST 2026

Basic System Information:
---------------------------------
Uptime     : 8 days, 23 hours, 50 minutes
Processor  : ZHAOXIN KaiSheng KH-40000/32@2GHz
CPU cores  : 4 @ 2345.448 MHz
AES-NI     : ✔ Enabled
VM-x/AMD-V : ❌ Disabled
RAM        : 3.7 GiB
Swap       : 0.0 KiB
Disk       : 19.5 GiB
Distro     : Debian GNU/Linux 13 (trixie)
Kernel     : 6.12.63+deb13-cloud-amd64
VM Type    : KVM
IPv4/IPv6  : ✔ Online / ✔ Online

IPv6 Network Information:
---------------------------------
ISP        : Geelinx LTD
ASN        : AS209557 GEELINX LTD
Host       : Geelinx LTD
Location   : City of London, England (ENG)
Country    : United Kingdom

fio Disk Speed Tests (Mixed R/W 50/50) (Partition /dev/vda1):
---------------------------------
Block Size | 4k            (IOPS) | 64k           (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 7.40 MB/s     (1.8k) | 116.48 MB/s   (1.8k)
Write      | 7.43 MB/s     (1.8k) | 117.10 MB/s   (1.8k)
Total      | 14.84 MB/s    (3.7k) | 233.58 MB/s   (3.6k)
           |                      |                     
Block Size | 512k          (IOPS) | 1m            (IOPS)
  ------   | ---            ----  | ----           ---- 
Read       | 157.26 MB/s    (307) | 147.75 MB/s    (144)
Write      | 165.62 MB/s    (323) | 157.59 MB/s    (153)
Total      | 322.88 MB/s    (630) | 305.35 MB/s    (297)

Geekbench 5 Benchmark Test:
---------------------------------
Test            | Value                         
                |                               
Single Core     | 656                           
Multi Core      | 2515                          
Full Test       | https://browser.geekbench.com/v5/cpu/24173388

YABS completed in 4 min 46 sec

4. Appendix

About the Tests

The machines used in this test were purchased at my own expense; results may be time-sensitive.

Kernel parameters of the test machines (/etc/sysctl.conf) are as follows:

fs.file-max = 6815744
net.ipv4.tcp_no_metrics_save=1
net.ipv4.tcp_ecn=0
net.ipv4.tcp_frto=0
net.ipv4.tcp_mtu_probing=0
net.ipv4.tcp_rfc1337=0
net.ipv4.tcp_sack=1
net.ipv4.tcp_fack=1
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_adv_win_scale=1
net.ipv4.tcp_moderate_rcvbuf=1
net.core.rmem_max=33554432
net.core.wmem_max=33554432
net.ipv4.tcp_rmem=4096 87380 33554432
net.ipv4.tcp_wmem=4096 16384 33554432
net.ipv4.udp_rmem_min=8192
net.ipv4.udp_wmem_min=8192
net.ipv4.ip_forward=1
net.ipv4.conf.all.route_localnet=1
net.ipv4.conf.all.forwarding=1
net.ipv4.conf.default.forwarding=1
net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr
net.ipv6.conf.all.forwarding=1
net.ipv6.conf.default.forwarding=1
Acknowledgements

Thanks to the administrators and volunteers of Haoyong Aiyong for providing public-interest speed test services; thanks to itdog.cn and iplark.com and the contributors of the test scripts

🔔 I wonder whether everyone's Geelinx JP has encountered speed limiting; feel free to discuss in the comments. Thanks for reading this far. If you want reminders for new NS reviews, you can subscribe to my channel yct018