14,953
edits
Web scrape troubleshooting: Difference between revisions
Jump to navigation
Jump to search
→List of technical issues
| Line 8: | Line 8: | ||
1. Content of web page was changed (revision): The expected web content (of specified DOM element) became empty. | 1. Content of web page was changed (revision): The expected web content (of specified DOM element) became empty. | ||
* Multiple sources of same column such as different HTML DOM but have the same column value. | |||
* Backup the HTML text of parent DOM element | |||
* (optional) Complete HTML file backup | |||
2. The IP was banned from server | 2. The IP was banned from server | ||
* Setting the temporization (sleep time) between each request e.g.: [http://php.net/manual/en/function.sleep.php PHP: sleep - Manual], [http://doc.scrapy.org/en/1.0/topics/autothrottle.html#topics-autothrottle AutoThrottle extension — Scrapy 1.0.3 documentation] or [[Sleep | Sleep random seconds in programming]]. | |||
* The server responded with a status of 403: '[https://zh.wikipedia.org/wiki/HTTP_403 403 forbidden]' --> Change the network IP | |||
3. [https://en.wikipedia.org/wiki/CAPTCHA CAPTCHA] | 3. [https://en.wikipedia.org/wiki/CAPTCHA CAPTCHA] | ||
4. AJAX | 4. AJAX | ||
* [https://chrome.google.com/webstore/detail/autoscroll/kgkaecolmndcecnchojbndeanmiokofl/related Autoscroll] on {{Chrome}} or {{Edge}} written by [https://twitter.com/PeterLegierski Peter Legierski (@PeterLegierski) / Twitter] | |||
5. The web page needed to signed in | 5. The web page needed to signed in | ||