What is the difference between internal links and external links in blogging ?

Internal links are hyperlinks that direct the reader to a target page on your website, whereas an external link is a hyperlink that directs the reader to a reputable page on a different website

wow. really very useful information. thanks.

External links point from one domain to an entirely separate domain. They may be links from your website to another website to provide additional information for readers, or they may be links from your website to an affiliate program. ... Internal links only point within your own specific website or domain.

Internal links are the links which redirect to the same website. External links are the way to redirect to the other websites

Internal links only point within your own specific website or domain. Links from pages on your site to your contact page are another simple example of internal links. External Links are hyperlinks that point at (target) any domain other than the domain the link exists on (source).