Guide

Link Building Guide

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Link building is the practice of earning hyperlinks from other sites to your own. Backlinks remain one of Google’s most heavily weighted ranking signals. A link from a relevant, authoritative site signals editorial endorsement and transfers link equity that helps the linked page rank.

This guide covers the full process from audit to measurement. Individual topics are covered in depth across the Link building, Link prospecting and outreach, Digital PR, Anchor text, Brand mentions, and Backlink audit and disavow articles.

Before building new links, understand what you currently have. An audit reveals the quality, distribution, and health of your existing backlink profile.

Export your backlink data. Ahrefs, Semrush, and Moz maintain their own link indexes. Run a backlink report for your domain and export the full list of referring domains, not just total link count.

Identify your strongest links. Filter by domain rating and note which publications, industries, and content types have linked to you. This shows what has earned links historically and which relationships might produce more.

Flag potentially harmful links. Links from low-quality sources (link farms, irrelevant foreign-language sites, private blog networks) sit in most link profiles. Isolated low-quality links rarely cause issues, but a pattern of manipulative-looking links can trigger spam filters. See backlink audit and disavow for the assessment framework.

Compare against competitors. Run the same audit on two to three competitors who outrank you for priority keywords. The domains linking to them but not to you are your most actionable prospect list: they have already demonstrated relevance to your space and a willingness to link.

A useful goal is specific: a target number of new referring domains over a defined period, from defined source types.

Prioritise quality over quantity. Five links from established, relevant publications outperform fifty links from directories and low-authority blogs. Set a minimum quality threshold (domain rating, or publication type) alongside any volume target.

Identify which pages need links. Links to your homepage build domain authority broadly. Links directly to target pages (product pages, key content, category pages) build those pages’ ability to rank for their specific queries. Identify which pages most need equity and direct outreach at them.

Calibrate to your current position. A new site with a thin link profile needs to establish a baseline of citations from relevant directories and niche publications before pursuing major editorial placements. A more established site can focus on high-authority acquisition. Match the strategy to your current domain profile.

Step 3: Choose your acquisition strategy

Different tactics suit different content types, domains, and relationship stages. Most successful campaigns combine more than one.

Content-led acquisition. The most durable links come from content others want to reference: original research, industry surveys, data studies, and comprehensive reference resources. This requires upfront investment but creates compounding assets: a page published years ago continues to earn links.

Digital PR. Pitching original data, stories, or expert commentary to journalists earns editorial links from news and media domains. The placements are among the most valuable available. Requires original angles and genuine news value: a product announcement without a hook does not earn coverage. See digital PR for the pitch process.

Broken link building. Identifying broken outbound links on relevant sites and proposing your content as a replacement. Works at scale with Ahrefs’ broken link checker or Screaming Frog. The value proposition is clear: you solve a problem for the site owner rather than simply asking for a favour.

Unlinked brand mentions. Sites that mention your brand without linking to you have already validated relevance. Converting the mention into a link is an easier ask than cold outreach. Ahrefs Alerts and Google Alerts surface new mentions. Conversion rates are higher because the relationship is already established.

Competitor backlink acquisition. Identifying the domains that link to competitors and proposing a reason for them to link to you as well. These prospects have demonstrated interest in the topic area and a willingness to link.

Step 4: Research and qualify prospects

Not every link opportunity is worth pursuing. Qualifying prospects before outreach saves time and improves conversion rates.

A qualified prospect has:

  • Topical relevance. The linking page or domain covers topics related to your content. An unrelated domain adds minimal topical relevance signal.
  • Sufficient authority. Set a minimum domain rating appropriate to your goals: for most sites, 30+ is a reasonable baseline; for competitive niches, 50+.
  • Editorial links on site. A site that links only to its own content or paid partners rarely links editorially. Check existing outbound links before adding it to your list.
  • A working contact. Bad email addresses waste more time in outreach than any other single cause. Verify contact information via Hunter.io or by checking the site’s contact and author pages directly.

Build your prospect list before writing a single email. Prospect research quality is what separates campaigns with 5% conversion rates from those with under 1%.

Step 5: Write personalised outreach

Outreach email quality has the largest effect on response rate. Generic templates sent without personalisation consistently underperform specific, personal emails that demonstrate you have read the site and have a relevant value proposition.

Keep it short. Three to four sentences is sufficient: who you are, why you are emailing this specific person, what you are proposing, and why it is relevant to their audience.

Lead with value. A good outreach email explains what the recipient gets from the exchange, not what you want. A broken link fix, a piece of relevant data their audience would find useful, a content gap you can fill: these are value propositions. “I noticed you hadn’t linked to us” is not.

Personalise beyond the first name. Reference a specific article on their site, a specific angle in their recent content, or a specific connection between their editorial focus and your content. One sentence of genuine personalisation doubles response rates relative to a generic introduction.

Use a clear subject line. Vague subject lines get deleted. “Your article on X: a broken link I spotted” or “Data point for your [topic] piece” are clear and specific enough to earn an open.

Send from a named individual. Outreach from hello@company.com performs consistently worse than outreach from a real person. Editors and site owners respond more readily to a named human asking than to a team alias.

Step 6: Follow up once

Most responses come from the follow-up email, not the initial send. Send one follow-up three to five days after the first email if there is no response. Brief and direct: “Just checking whether my previous message reached you” is sufficient.

One follow-up is standard. Two is acceptable for high-priority prospects. More than two tips into harassment and damages your sending reputation with that publication. Track outreach status (prospect, email date, follow-up date, outcome) so you stop chasing prospects who have already declined.

Track outreach in a spreadsheet or CRM: prospect domain, contact email, send date, follow-up date, and status (no response, positive, declined, link acquired). The pipeline view shows where effort is concentrated and prevents wasted re-contact.

Step 7: Measure results and adjust

Link building results take time to appear in rankings. Links must be crawled and indexed before they influence rankings, and ranking improvements typically emerge over weeks to months.

Track new referring domains, not link count. Referring domain growth correlates with sustained ranking improvement more consistently than total link count, which can grow while referring domain count stalls if most links come from the same few sources.

Monitor which content earns links without outreach. Some pages attract links passively. These are your most efficient link assets: identify them, improve them, and expand similar content. Amplifying their visibility increases passive acquisition.

Measure response rate and link acquisition rate by tactic. Broken link building may convert at 15%; guest post pitching at 3% in the same niche. Reallocate effort toward what works for your domain profile and content type. What works in one niche does not transfer uniformly to another.

Account for link decay. Links are removed, pages are deleted, and sites go offline. An annual backlink audit identifies lost referring domains and prioritises their recovery, whether through a redirect, content update, or outreach to the site owner. Maintaining the quality of an existing link profile is part of ongoing link building, not a one-time task.