When a website links to your site, that link is called a backlink. From Google's perspective, a backlink from a trusted website is a signal that your content is worth referencing. The more of those signals you accumulate, the more authoritative your site appears. Google's original insight was that links between websites function like citations in academic research. A paper with many citations is more credible than one with none. This logic has been at the core of search ranking for over 25 years.

Does backlink quality matter more than quantity?

Yes. A link from a well-known industry website carries more weight than dozens of links from low-authority blogs. Google evaluates the authority of the linking site, the relevance of the content, and whether the link looks natural. A link from a directory that lists businesses in your industry counts. A link from a spam site does not. Without backlinks, your website has no authority in Google's view. You may rank for your own business name, but you will not rank for the terms your potential customers are searching.

What if my competitors have more backlinks?

Search results are a zero-sum game. There are ten organic positions on the first page and hundreds of businesses competing for each one. If your competitors have been building backlinks for two years and you have zero, you will not appear for any commercial search term in your industry. Your competitors do not need to be larger or better funded. They need to have started earlier. Every month without backlinks is a month where your competitors extend their lead.

How do I start building backlinks?

The most consistent way is through directory submissions: listing your business on authoritative websites that link back to you. Despite every update to Google's algorithm, backlinks remain one of the top three ranking factors. It takes time to research which directories are worth submitting to, which is why most businesses never start. RelevantReply has a curated list of over 1,000 directories, segmented by industry and quality, so you can start immediately.

Learn more about directory listing SEO or go back to the complete guide.

Frequently asked questions

Yes. Backlinks remain one of the top three ranking factors in Google's algorithm. The emphasis has shifted from quantity to quality, but a site with strong backlinks consistently outranks a site without them.

There is no fixed number. What matters is the authority and relevance of the linking sites relative to your competitors. A local business may rank well with 50 quality backlinks. A national competitor may need hundreds.

A backlink is a single link from one page to another. A referring domain is the website that contains that link. One referring domain can send multiple backlinks. Google weighs referring domains heavily: 100 backlinks from 100 different sites is more valuable than 100 backlinks from one site.

Low-quality backlinks from spammy or irrelevant websites can hurt your rankings. Google's algorithm detects unnatural link patterns and may penalize sites that appear to be manipulating their backlink profile. This is why building backlinks from curated, relevant directories is safer than buying links or submitting to every directory you find.

A dofollow backlink passes ranking authority from the linking site to yours. A nofollow backlink includes a tag that tells search engines not to pass authority directly. Most directory backlinks are dofollow. Social media links are typically nofollow. Google treats nofollow links as hints that may still influence ranking, so both types contribute to a healthy backlink profile.