Allowed domains
Before reading a page check if it is allowed
Before reading a page check if it is allowed
page which will be scraped
if the page is allowed to be read
All crawled pages
Triggered every time a link is found
Triggered when a page has been downloaded
Triggered just before the spider starts searching
Triggered just before the spider starts searching
Additional start urls can be returned by the method
Scrape a single page
Scrape a single page
page to scrape
Scraper which will be used to scrape pages
Start running the spider
Urls from which the crawling will start