Backend Development
Python Tutorial
Which free API interfaces can be used to query the region to which the IP address belongs?
Which free API interfaces can be used to query the region to which the IP address belongs?
Free IP address geolocation query API interface recommendation
When developing applications, it is crucial to quickly and accurately obtain the geolocation information of the IP address. This article will introduce several free API interfaces that provide such services.
-
ip-api.com
The API is powerful, supports multilingual and provides detailed IP address information. For example, use the following URL (replace
117.136.12.79with the destination IP address) and specify the Chinese simplified language:<code>http://ip-api.com/json/117.136.12.79?lang=zh-cn</code>
Copy after loginThe returned JSON data contains information such as country, region, city, ISP, etc., which is very suitable for applications that require precise geographical location.
-
Baidu IP address query API
Baidu also provides free IP address query service, with URLs similar to:
<code>http://opendata.baidu.com/api.php?query=117.136.12.79&co=&res...</code>
Copy after login(Note: The specific URL and parameters of this API may need to be adjusted according to the official Baidu document.) The return result is concise and clear, suitable for quickly obtaining basic geographical location information of IP addresses.
-
useragentinfo IP API
This API provides an IP geolocation query service without frequency limits, which is ideal for applications that require a large number of queries. Call URL:
<code>https://ip.useragentinfo.com/json?ip=117.136.12.79</code>
Copy after loginThe return data contains information such as country, province, ISP, etc., and its advantage is that it has no frequency limit.
-
vore-api IP data query
vore-api supports IPv4 and IPv6 address query, and call URL:
<code>https://api.vore.top/api/ipdata?ip=117.136.12.79</code>
Copy after loginThe returned JSON data contains information such as province, city, ISP, etc., and can automatically distinguish IPv4 and IPv6 addresses.
Choosing the right API interface depends on your specific needs. These free APIs provide convenience for developers and improve development efficiency. Please note that there may be certain restrictions on the use of free APIs. It is recommended that you refer to the official documentation of each API to understand the specific usage rules and restrictions.
The above is the detailed content of Which free API interfaces can be used to query the region to which the IP address belongs?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1664
14
1422
52
1316
25
1267
29
1239
24
How to understand DMA operations in C?
Apr 28, 2025 pm 10:09 PM
DMA in C refers to DirectMemoryAccess, a direct memory access technology, allowing hardware devices to directly transmit data to memory without CPU intervention. 1) DMA operation is highly dependent on hardware devices and drivers, and the implementation method varies from system to system. 2) Direct access to memory may bring security risks, and the correctness and security of the code must be ensured. 3) DMA can improve performance, but improper use may lead to degradation of system performance. Through practice and learning, we can master the skills of using DMA and maximize its effectiveness in scenarios such as high-speed data transmission and real-time signal processing.
How to use the chrono library in C?
Apr 28, 2025 pm 10:18 PM
Using the chrono library in C can allow you to control time and time intervals more accurately. Let's explore the charm of this library. C's chrono library is part of the standard library, which provides a modern way to deal with time and time intervals. For programmers who have suffered from time.h and ctime, chrono is undoubtedly a boon. It not only improves the readability and maintainability of the code, but also provides higher accuracy and flexibility. Let's start with the basics. The chrono library mainly includes the following key components: std::chrono::system_clock: represents the system clock, used to obtain the current time. std::chron
Quantitative Exchange Ranking 2025 Top 10 Recommendations for Digital Currency Quantitative Trading APPs
Apr 30, 2025 pm 07:24 PM
The built-in quantization tools on the exchange include: 1. Binance: Provides Binance Futures quantitative module, low handling fees, and supports AI-assisted transactions. 2. OKX (Ouyi): Supports multi-account management and intelligent order routing, and provides institutional-level risk control. The independent quantitative strategy platforms include: 3. 3Commas: drag-and-drop strategy generator, suitable for multi-platform hedging arbitrage. 4. Quadency: Professional-level algorithm strategy library, supporting customized risk thresholds. 5. Pionex: Built-in 16 preset strategy, low transaction fee. Vertical domain tools include: 6. Cryptohopper: cloud-based quantitative platform, supporting 150 technical indicators. 7. Bitsgap:
How to handle high DPI display in C?
Apr 28, 2025 pm 09:57 PM
Handling high DPI display in C can be achieved through the following steps: 1) Understand DPI and scaling, use the operating system API to obtain DPI information and adjust the graphics output; 2) Handle cross-platform compatibility, use cross-platform graphics libraries such as SDL or Qt; 3) Perform performance optimization, improve performance through cache, hardware acceleration, and dynamic adjustment of the details level; 4) Solve common problems, such as blurred text and interface elements are too small, and solve by correctly applying DPI scaling.
What is real-time operating system programming in C?
Apr 28, 2025 pm 10:15 PM
C performs well in real-time operating system (RTOS) programming, providing efficient execution efficiency and precise time management. 1) C Meet the needs of RTOS through direct operation of hardware resources and efficient memory management. 2) Using object-oriented features, C can design a flexible task scheduling system. 3) C supports efficient interrupt processing, but dynamic memory allocation and exception processing must be avoided to ensure real-time. 4) Template programming and inline functions help in performance optimization. 5) In practical applications, C can be used to implement an efficient logging system.
How to measure thread performance in C?
Apr 28, 2025 pm 10:21 PM
Measuring thread performance in C can use the timing tools, performance analysis tools, and custom timers in the standard library. 1. Use the library to measure execution time. 2. Use gprof for performance analysis. The steps include adding the -pg option during compilation, running the program to generate a gmon.out file, and generating a performance report. 3. Use Valgrind's Callgrind module to perform more detailed analysis. The steps include running the program to generate the callgrind.out file and viewing the results using kcachegrind. 4. Custom timers can flexibly measure the execution time of a specific code segment. These methods help to fully understand thread performance and optimize code.
How to use string streams in C?
Apr 28, 2025 pm 09:12 PM
The main steps and precautions for using string streams in C are as follows: 1. Create an output string stream and convert data, such as converting integers into strings. 2. Apply to serialization of complex data structures, such as converting vector into strings. 3. Pay attention to performance issues and avoid frequent use of string streams when processing large amounts of data. You can consider using the append method of std::string. 4. Pay attention to memory management and avoid frequent creation and destruction of string stream objects. You can reuse or use std::stringstream.
An efficient way to batch insert data in MySQL
Apr 29, 2025 pm 04:18 PM
Efficient methods for batch inserting data in MySQL include: 1. Using INSERTINTO...VALUES syntax, 2. Using LOADDATAINFILE command, 3. Using transaction processing, 4. Adjust batch size, 5. Disable indexing, 6. Using INSERTIGNORE or INSERT...ONDUPLICATEKEYUPDATE, these methods can significantly improve database operation efficiency.
