What are backlinks in SEO?

19 Nov 2025

Nicola Hughes

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When it comes to SEO, visibility is everything. If your customers can’t find you on Google, you miss out on traffic, leads and revenue. At the heart of improving that visibility is one of the most important elements of SEO: backlinks.

Backlinks sit alongside technical SEO and great on-page content as a core part of a successful strategy. They help Google understand which websites deserve to rank, who is trusted in their niche and which content is worth surfacing higher in search results.

Below is a clear overview of what backlinks are, why they matter and how to focus on the ones that genuinely move the needle.

What is a backlink?

A backlink is a link from one website to another. When an external site links to one of your pages, Google views that link as a signal that your content is useful, relevant or trustworthy.

Think of each backlink as a third-party endorsement. The more high-quality links you earn, the more authority your site builds, and the more confident Google becomes in ranking your content.

Why backlinks matter for SEO

Backlinks are one of the strongest indicators of trust and authority Google has. They feed into several key areas of SEO performance.

Building authority and trust

Links from reputable, established websites help transfer some of their authority to yours. This supports your ability to rank in competitive search results and strengthens your overall domain.

Ranking power

A strong backlink profile is closely linked to higher organic rankings. Pages with more high-quality backlinks usually outperform those with weak or irrelevant link profiles.

Referral traffic

Backlinks don’t only help with rankings. They also drive relevant, engaged traffic directly from the linking site to yours, bringing in users who are already interested in what you offer.

Faster crawling and indexing

Google discovers new content by following links. Backlinks help search engines find, crawl and index your pages quicker, which is especially useful for new websites and fresh content.

What makes a high-quality backlink?

Not all backlinks carry equal value. Google focuses heavily on the quality, relevance and placement of the link.

Relevance

Links from sites in a similar or related industry are far more valuable than links from unrelated topics.

Authority

Links from trusted domains, recognised brands, government sites, media outlets or well-maintained blogs carry more weight.

Anchor text

Anchor text should be relevant and natural. A mixed anchor profile (brand names, URLs, generic terms, topical phrases) signals a healthy backlink pattern.

Placement

Editorial links placed naturally within the main body content are far more valuable than links placed in footers, sidebars or low-quality directories.

Types of backlinks you might encounter

Editorial backlinks

Given by sites who naturally reference your content because it is useful or insightful.

Guest post backlinks

Earned by contributing content to reputable websites within your niche.

Resource links

Links placed on curated resource pages or useful tools pages.

Local citations and directory links

Useful for validating your business information for local SEO.

UGC, sponsored and nofollow links

Not all links pass authority, but a natural profile includes a mix of link types.

How to earn high-quality backlinks

High-quality backlinks come from producing content worth referencing and building genuine relationships in your industry. Below are proven approaches.

Create high-value content

Guides, studies, data-led articles and tools naturally attract backlinks because they offer unique value.

Guest contributions

Publishing content on reputable industry sites exposes your brand to new audiences while securing relevant, authoritative links.

Digital PR

Campaigns, insights, commentary and reactive PR can help earn coverage and links from high-authority publications.

Link reclamation

Finding unlinked mentions of your brand and requesting the link to be added is an effective and low-effort way to build your profile.

Broken link building

Offering your content as a replacement for broken links on reputable sites helps you earn relevant placements.

Local citations

For local businesses, consistent listings across local directories help validate your details and strengthen local SEO signals.

The importance of internal linking

While not a backlink, internal links help Google understand your site structure, distribute link equity and ensure important pages are easy to find. A strong internal linking strategy supports the impact of your external backlinks.

Backlinks for SEO

Backlinks remain one of the most reliable signals of authority, trust and relevance in SEO. They help improve rankings, support faster indexing, increase referral traffic and strengthen your website’s overall credibility.

A successful backlink strategy prioritises quality over quantity. The goal is to build links that support your brand, serve users and reinforce your authority in your space.

If you’re trying to improve your visibility and want support with building a strong, ethical backlink strategy, reach out to the team at TAL for a chat. We can help you understand what your website needs and build a plan that actually drives results.

 

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