Super awesome network quality detection script: shocking recommendation

Sometimes, we encounter some troubles when surfing the Internet, such as being unable to access certain websites such as ChatGPT, Netflix or TikTok due to network restrictions, region blocking or IP blocking. Sometimes, we need to know whether port 25 of a server is open and whether it can be used to build a mailbox service. If you have just bought a new server and want to quickly understand whether the IP address of this server can access various services normally, is there any simple way to detect all this information with one click?

The answer is that there must be.

Project Introduction

NetQuality is a thoughtful network quality detection assistant that is committed to providing you with detailed and easy-to-understand network performance analysis. Whether you are using mainstream Linux distributions such as Ubuntu, Debian, Fedora, or macOS, NetQuality can be perfectly adapted and covers almost all common server and desktop environments. Whether you want to understand the broadband status at home or need to evaluate the network performance of the server, it is your right-hand man.

This script has many practical functions built in, such as supporting IPv4 and IPv6 dual stack queries, providing BGP information, performing three-network delay tests, backhaul routing tracking, and comparing domestic and foreign network speeds. The best part is that the results generated by NetQuality are not only comprehensive but also beautifully formatted, making them perfect for screenshots and sharing with friends!


Functional introduction
Chinese and English bilingual support
Support IPv4/IPv6 dual stack query
Beautiful layout, intuitive display, optimized display of multiple terminals on a single screen, convenient for screenshot sharing
Seven modules: BGP information, local strategy, access information, three-network TCP large packet delay, three-network return routing, domestic speed test, and international interconnection
Basic data comes from BGP.TOOLS and BGP.HE.NET databases

Intuitive display of upstream and access information
Backhaul delay of China Telecom/China Unicom/China Mobile in 31 provinces/cities/autonomous regions in mainland China
Speed ​​test of three networks in mainland China (including the Greater Bay Area) based on SPEEDTEST.NET
Network speed and latency test in five continents around the world
Flexible selection of multiple test methods including latency mode, low data mode, skip any chapter
Json output for big data analysis
How to use
Default dual stack detection:


Only detect IPv4 results:

Only detect IPv6 results:

Delay mode:

Full routing mode (TCP large packet):

Default state defaults to detect Beijing, Shanghai, and Guangdong

Specify parameters to detect any province-level administrative region in mainland China (choose one of the following)

Low data mode:

Skip any chapter:

Chinese and English bilingual support:

Json output:

Skip detection system and installation dependencies:

Automatic installation dependencies:

Report displays full IP address: