A backlink is a link from another website to yours. Search engines treat them like votes of confidence - when reputable sites link to you, Google trusts you more, which can help your ranking.
Also known as: Inbound link, incoming link, link equity
In plain English
A backlink is any link on someone else's website pointing to yours. To Google, a link from a reputable site is a vote of confidence - someone vouched for your content enough to send their visitors to it.
Why it matters for your business
Backlinks are one of the strongest ranking signals Google uses - often the difference between page one and page three. But quality beats quantity: a few links from real, relevant sites outweigh thousands of spammy directory links, which can actively hurt you.
When you'll run into it
As part of ongoing SEO. They're earned through useful content, local directories, partnerships, and PR - not bought in bulk.
A real example
Example: when a local business blog writes "we used SEO Pro Gurus to rescue our hacked site" and links to your rescue page, that link passes trust to your site. One genuine editorial link from a relevant site is worth more than a thousand directory submissions.
Run into this on your site?
Speed Optimization