Web scrape troubleshooting
list of technical issues
- website revision: expected web content (of DOM element) was 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
- server ip ban
- setting the temporization (sleep time) between pages ex: PHP: sleep - Manual, AutoThrottle extension — Scrapy 1.0.3 documentation