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Page 18 of 246 posts

HTTP 429 Too Many Requests: Causes and How to Fix It

Zeid AbughazalehZeid Abughazaleh on Aug 26, 2025

HTTP 429 Too Many Requests means a server has rate-limited a client because it sent more requests than allowed within a specified period. First check the response for a Retry-After header and wait for the specified time before retrying. For APIs, scrapers, and automation, reduce your request rate or concurrency and use exponential backoff with jitter instead of immediately repeating failed requests.

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How Do Price Comparison Sites Work, Make Money & Get Data?

Omar RifaiOmar Rifai on Aug 22, 2025

Price comparison sites collect offers from multiple sellers, turn inconsistent product and price data into comparable records, and help users evaluate those offers in one interface. They may receive data through merchant feeds, APIs, affiliate networks, structured data, permitted public-page collection, or a combination of methods. Most make money through commissions, referral clicks, advertising, leads, or merchant services.

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How to Scrape Reddit for Free with Python in 2026

Yazan SharawiYazan Sharawi on Aug 19, 2025

You can scrape Reddit with Python by requesting Reddit's structured data, handling cursor-based pagination, cleaning the returned JSON, and exporting posts or comments to formats such as JSON and CSV. Our open-source Reddit scraper uses a simple synchronous approach for smaller jobs and switches to asynchronous requests and proxy rotation for larger workloads.

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cURL vs Wget: Differences, Commands & When to Use Each

Yazan SharawiYazan Sharawi on Aug 14, 2025

cURL and Wget can both retrieve a URL, but they are optimized for different jobs. cURL is a general data-transfer client with precise control over requests, headers, bodies, authentication, uploads, and proxies. GNU Wget is a retrieval tool designed around downloading files reliably and following links recursively.

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What is cURL?

Yazan SharawiYazan Sharawi on Jul 30, 2025

cURL, short for Client URL, is a command-line tool used to send and receive data from servers using a wide variety of protocols. It’s built on a library called libcurl and supports protocols like HTTP, HTTPS, FTP, SMTP, LDAP, and more.

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How to Test SOCKS5 UDP Support: Python Checker and Troubleshooting

Omar RifaiOmar Rifai on Jul 25, 2025

The most reliable first test for SOCKS5 UDP support is a direct UDP ASSOCIATE probe—not a browser, VoIP app, or system-wide tunnel. The Python checker below negotiates SOCKS5, requests a UDP relay, sends a DNS query through it, and validates both the returned SOCKS5 envelope and DNS answer. It does not print proxy credentials, and it does not treat an arbitrary packet or a timeout as a definitive result.

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How Do You Show Response Headers With cURL?

Yazan SharawiYazan Sharawi on Jul 22, 2025

Use `curl -i "https://example.com"` to show Hypertext Transfer Protocol (HTTP) response headers beside the response body. Use `curl -I "https://example.com"` only when a HEAD request matches your test. For GET headers without body output, run `curl -sS -D - -o /dev/null "https://example.com"`.

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What is Shadowrocket?

Omar RifaiOmar Rifai on Jul 9, 2025

What do you do when you need every packet that leaves your iPhone or iPad to pass through a proxy, yet the network you are on blocks or throttles traditional VPN tunnels?

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What Is a 502 Bad Gateway Error, and How Do You Fix It?

Zeid AbughazalehZeid Abughazaleh on Jul 4, 2025

A Hypertext Transfer Protocol (HTTP) 502 Bad Gateway response means a gateway or proxy received an invalid upstream response. Visitors should retry once, while site owners identify the responding gateway and inspect upstream logs. Owners should verify service health, routing, Domain Name System (DNS) records, firewall rules, and protocol settings.

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