Domain authority measures how likely a search engine is to rank your site highly, and it grows when other established websites link to you

Domain authority is a score from 1 to 100 that predicts how well a domain will rank in search results. Search engines do not publish their own authority scores, but tools like Moz, Ahrefs, and SEMrush calculate estimates based on the number and quality of websites linking to you. A site with a score of 50 ranks better than one with a score of 20, all else equal.

The score matters because it affects how quickly new pages get indexed and how high they rank for competitive keywords. A new article on a domain with authority 60 will typically outrank the same article on a domain with authority 20, even if both are well-written. Building authority takes months or years, not weeks, because search engines trust sites that have earned links over time.

Domain authority is not the only ranking factor — content quality, page speed, and user experience matter too — but it is the foundation. If your site has low authority, even excellent content will struggle to rank for popular search terms.

Key Takeaways

  • Domain authority grows when other websites link to yours, and those links matter more if they come from high-authority sites in your industry.
  • Creating content that solves a specific problem or answers a real question is the most reliable way to earn links naturally, without asking.
  • Broken links on other sites are opportunities: find them, create better content on the same topic, and contact the site owner with a replacement suggestion.
  • Internal linking — connecting your own pages to each other — helps distribute authority across your site and tells search engines which pages matter most.
  • Authority grows slowly and unevenly; a single link from a major publication can move your score more than dozens of links from small blogs.

Earn links by creating content people want to share and reference

The fastest way to build authority is to create content that other websites naturally want to link to. This means solving a problem your audience actually has or answering a question they are searching for. A detailed guide to a common problem, original research or data, a tool that saves time, or a resource list that becomes the standard reference in your field — these earn links because they are genuinely useful.

Start by researching what your competitors are linking to. Use Ahrefs, SEMrush, or Moz to see which pages on competing sites have the most backlinks. Look for patterns: are they linking to how-to guides, case studies, tools, or industry reports? Create something better in the same category. If a competitor's guide to choosing a CRM has 50 backlinks, write a more detailed guide with better examples and more recent information, then promote it to the same websites that linked to theirs.

Publish consistently and promote your best work. One excellent article per month that gets shared and linked to builds authority faster than four mediocre articles. When you publish something you think is link-worthy, share it in relevant online communities, email it to industry contacts, and mention it to journalists or bloggers who cover your field.

Find broken links and offer your content as a replacement

Broken link building is a straightforward tactic: find links on other websites that point to pages that no longer exist, create content on the same topic, and contact the site owner suggesting they link to your page instead. The site owner benefits because they fix a broken link, and you benefit because you earn a link from an established site.

Start with a competitor or a site in your industry that has high authority. Use a tool like Ahrefs, SEMrush, or the free tool Check My Links to scan their pages for broken outbound links. Look for broken links that point to topics related to your business. If you find a broken link to an article about "best project management tools," and you have written a guide on that topic, you have found a prospect.

Contact the site owner or editor with a brief, specific message: mention the broken link, explain what page it pointed to, and suggest your article as a replacement. Keep it short — three sentences is enough. Many site owners will not respond, but some will, and each successful replacement is a link from a real website in your industry.

Build relationships with journalists, bloggers, and industry influencers

Links from journalists and established bloggers carry more weight than links from small personal sites because those sources already have authority. Building relationships with people who write about your industry makes it more likely they will mention and link to your work.

Start by reading what they write. Follow their work on social media, comment thoughtfully on their articles, and share their pieces with your audience. When you have something genuinely relevant to their beat, send them a brief note mentioning their recent work and explaining why your content might interest their readers. Do not ask them to link to you; offer them something useful for their audience instead.

Journalists and bloggers are more likely to link to you if you are a source for their stories. Respond quickly to interview requests, provide original data or insights they cannot find elsewhere, and make yourself easy to reach. Over time, as they write about your industry, they will naturally mention and link to your site.

Link to high-authority sites and relevant pages within your own site

Internal linking — connecting your own pages to each other — distributes authority across your site and helps search engines understand which pages are most important. When you link from a high-traffic page to a newer page on a related topic, you pass some of that page's authority to the new page, helping it rank faster.

Create a linking strategy based on your site structure. If you have a popular article about "how to choose a CRM," link from that article to related pages about specific CRM tools, implementation steps, or common mistakes. Use descriptive anchor text — the clickable words in a link — that tells readers and search engines what the linked page is about. Instead of "click here," use "learn how to implement a CRM in 30 days."

Linking to high-authority external sites also helps. When you reference data, quote an expert, or build on someone else's research, link to the original source. This shows search engines that your content is well-researched and connected to the broader conversation in your field. It also makes it more likely that the site you linked to will notice your content and link back.

Improve technical SEO so search engines can crawl and index your site

Domain authority grows faster when search engines can easily crawl and index your pages. Technical problems like slow page speed, broken internal links, duplicate content, or poor mobile formatting slow down indexing and waste the authority you have earned.

Start with the basics: make sure your site loads quickly on mobile devices, fix any broken links, and ensure every page has a unique title and description. Use Google Search Console to check for crawl errors and see which pages Google has indexed. If important pages are not indexed, the problem is usually a robots.txt file blocking them, a noindex tag, or a redirect loop.

Create an XML sitemap and submit it to Google Search Console and Bing Webmaster Tools. This tells search engines which pages exist and how often they change. If you publish new content regularly, update your sitemap weekly so search engines discover new pages faster.

Monitor your authority score and track which links drive the most value

Check your domain authority score monthly using Moz, Ahrefs, or SEMrush. The score will fluctuate slightly month to month, but over six to twelve months you should see an upward trend if you are earning quality links. Do not obsess over small changes — a jump from 25 to 26 is noise, but a jump from 25 to 35 over a year shows real progress.

More important than the overall score is understanding which links are driving your rankings. Use Google Search Console to see which sites link to you and which of your pages get the most impressions in search results. Use Ahrefs or SEMrush to see which of your pages have the most backlinks and which backlinks come from the highest-authority sources. This tells you what is working and where to focus next.

Track the relationship between your authority score and your search rankings. If your authority increased but your rankings did not, the problem is usually content quality or keyword competition, not authority. If your rankings improved but your authority score did not, you may have earned links from lower-authority sites, which is still valuable.

Frequently Asked Questions

How long does it take to increase domain authority?

Most sites see measurable increases in authority within three to six months of earning quality links consistently. A new site with no links may take a year to reach authority 20. Established sites can move faster because each new link has more impact. The timeline depends on your industry, competition, and how many quality links you earn per month.

Does buying links help domain authority?

Buying links violates Google's guidelines and can result in a manual penalty that tanks your rankings. Search engines can detect paid links because they look for patterns: links from unrelated sites, links with exact-match anchor text, or links from link networks. Earned links from real websites are always better than purchased ones.

Can I increase domain authority without getting backlinks?

Backlinks are the primary factor in domain authority scores. You can improve your search rankings without high authority by targeting low-competition keywords, creating excellent content, and improving technical SEO, but your authority score itself will not increase without links from other sites.

Does social media help domain authority?

Social media shares do not directly increase domain authority because they are not links. However, social media can help indirectly: when you share content on social media, more people see it, and some of those people link to it from their websites or blogs. The link is what matters, not the social share.

What is a good domain authority score?

Authority scores are relative to your industry and competition. A score of 30 is strong for a new business site, average for an established small business, and weak for a major publication. Compare your score to your top three competitors: if you are within 10 points of them, you are competitive. If you are 20+ points behind, authority is likely holding back your rankings.