deny_domains (str or list) – a single value or a list of strings containing domains which won’t be considered for extracting the links
deny_extensions (list) – a single value or list of strings containing extensions that should be ignored when extracting links. If not given, it will default to the IGNORED_EXTENSIONS list defined in the scrapy.linkextractors package.
restrict_xpaths (str or list) – is an XPath (or list of XPath’s) which defines regions inside the response where links should be extracted from. If given, only the text selected by those XPath will be scanned for links. See examples below.
restrict_css (str or list) – a CSS selector (or list of selectors) which defines regions inside the response where links should be extracted from. Has the same behaviour as restrict_xpaths.
tags (str or list) – a tag or a list of tags to consider when extracting links. Defaults to ('a','area').
attrs (list) – an attribute or list of attributes which should be considered when looking for links to extract (only for those tags specified in the tags parameter). Defaults to ('href',)