What are Backlinks? A Beginner's Guide to Links and SEO
If you've ever researched how to get more traffic to your website, you've probably encountered the term "backlinks." SEO articles mention them constantly. Marketing guides say you need them. But what actually is a backlink?
Most explanations assume you already know. They jump straight to "how to get more backlinks" without explaining what you're trying to get or why it matters.
The simple answer: A backlink is a link from another website to your website. When Website A includes a clickable link that takes visitors to Website B, that's a backlink for Website B.
That's it. That's the core concept.
But why does every SEO guide obsess over them? Because Google uses backlinks as one of its most important ranking signals. Websites with more high-quality backlinks tend to rank higher in search results. Sites with few backlinks, even if their content is excellent, often stays invisible.
Michael's starting point: Michael writes detailed woodworking tutorials. His content is better than many sites ranking on page one. But those sites have hundreds of backlinks. His blog has two (both from friends who don't have audiences). He's invisible on Google because he doesn't have backlinks, not because his content isn't good enough.
What this guide covers:
- What backlinks are (with clear examples)
- Why Google cares about them
- How they actually affect your rankings
- The difference between good backlinks and worthless ones
- What you should do next (without overwhelming you with advanced tactics)
What Backlinks Actually Are: The Fundamentals
Before you can build backlinks strategically, you need to understand what they actually are. At their core, backlinks are links from one website to another, but in SEO, they function as signals of credibility, relevance, and trust.
When another site links to your content, search engines interpret that link as a form of endorsement. The fundamentals of backlinks go beyond simple connections between pages; they shape how authority flows across the web and directly influence how your site is evaluated in search results.
The Basic Definition
A backlink (also called an "inbound link" or "incoming link") is a hyperlink on one website that points to a page on another website.
Real-world example:
The New York Times publishes an article about home improvement and includes this sentence:
"For beginners, we recommend starting with this comprehensive guide to basic woodworking tools."
The phrase "comprehensive guide to basic woodworking tools" is a clickable link that takes readers to Michael's blog post. That link is a backlink to Michael's website.
The Direction That Matters
Important distinction:
Backlink (what we're discussing): Another site links TO your site
Outbound link: Your site links to another site
When you link to Wikipedia in your article, that's an outbound link from your perspective. From Wikipedia's perspective, it's a backlink.
For SEO purposes, you care about backlinks (links coming TO your site) because those are what Google counts as "votes" for your site's authority.
Michael's Current Backlink Profile
His woodworking blog has been live for 3 months. When he checks his backlinks (using free Google Search Console), he finds:
Backlink 1: His personal Twitter profile (linked his blog in bio)
Backlink 2: His friend's hobby blog mentioned his site
Total backlinks: 2
Meanwhile, the woodworking blog ranking #1 for "beginner woodworking guide" has 847 backlinks.
The gap in backlinks explains the gap in rankings.
Why Google Cares About Backlinks
In the late 1990s, search engines ranked websites primarily by counting how many times keywords appeared on a page. This was easy to manipulate, website owners just stuffed their pages with keywords hundreds of times.
Google's founders (Larry Page and Sergey Brin) realized a better signal existed: links between websites work like citations in academic research.
The insight:
In academia, when a research paper is cited by many other credible papers, it's probably important and trustworthy. The same principle applies to websites.
When many credible websites link to your content, Google interprets those links as endorsements: "This content is valuable enough that other sites reference it."
This became the foundation of Google's PageRank algorithm, the innovation that made Google's search results dramatically better than competitors.
What Backlinks Signal to Google
1. Trust and Authority
When established, reputable websites link to your content, they're vouching for its quality. Google takes that endorsement seriously.
Example: A backlink from The New York Times carries enormous weight because The New York Times has established trust with Google over decades.
2. Relevance to Topics
Links from websites in your topic area tell Google what your content is about.
For Michael: Backlinks from woodworking blogs, carpentry supply sites, and home improvement publications tell Google his content is relevant to woodworking topics.
3. Popularity
More quality backlinks suggest more people find the content valuable enough to reference, share, or recommend.
4. Content Worth Finding
New backlinks indicate your content is being discovered, is still relevant, and continues contributing value.
Why This Matters for Rankings
Google's job is showing the most relevant, trustworthy results for every search query. Backlinks help Google determine which sites are trustworthy and authoritative.
The competitive reality:
If two websites have:
- Similar content quality
- Similar technical setup
- Target the same keywords
The site with more quality backlinks will almost always rank higher.
Michael's realization:
His woodworking tutorials are detailed, accurate, and helpful. But competitors with less helpful content rank higher simply because they have more backlinks. Google can't evaluate content quality perfectly, so it uses backlinks as a proxy for quality.
How Backlinks Actually Affect Your Rankings
Backlinks are one of the strongest ranking signals in SEO, but not simply because they exist. Search engines evaluate who is linking to you, why they are linking, and how those links fit within your overall authority and content relevance.
A single high-quality, contextually relevant backlink can carry more weight than dozens of low-value links. Understanding how backlinks actually influence rankings helps you move beyond “link quantity” and focus on what truly drives sustainable SEO growth: trust, relevance, and authority signals that search engines use to determine where your pages belong in search results.
Step 1: Google Discovers the Link
Google's web crawlers (bots that scan the internet) eventually visit the page with your backlink. They record that link in Google's index.
Timeline: Can take days to weeks depending on how often Google crawls the linking site.
Step 2: Authority Flows to Your Site
Every page on the web has accumulated "authority" based on its own backlinks. When that page links to you, some authority transfers through the link.
The metaphor: Think of it like endorsements. One endorsement from an expert carries more weight than 100 endorsements from random people.
For Michael: One backlink from Popular Woodworking Magazine (a major authority in the woodworking space) would carry more weight than 50 backlinks from unknown personal blogs.
Step 3: Google Understands Your Topic Better
Backlinks from sites in your industry reinforce what topics you should rank for.
Pattern recognition: If most of Michael's backlinks come from woodworking-related sites, Google becomes more confident that his content belongs in woodworking search results.
Step 4: Rankings Improve (Gradually)
Quality backlinks don't produce instant results. Rankings improve gradually over 3-6 months as Google processes the links and reassesses your site's authority.
Observable outcomes:
- Less competitive keywords: Move from page 5-10 to page 2-3
- Long-tail keywords: Might reach page 1
- Your entire domain gains authority, helping new content rank faster
Michael's goal: Get enough quality backlinks to move from page 8 (invisible) to page 1-2 (visible and generating traffic) for his target woodworking keywords.
Not All Backlinks Are Equal, Understanding Quality
The critical distinction: Getting 100 low-quality backlinks can be worthless or even harmful. Getting 10 high-quality backlinks can transform your rankings.
Here's how to tell the difference:
Factor 1: Domain Authority of the Linking Site
What it is:
Domain Authority (DA) is a score from 0-100 that predicts how well a website will rank. Created by SEO tool companies (Moz, Ahrefs, SEMrush).
Why it matters:
- Link from DA 70 site (major publication): Very valuable
- Link from DA 30 site (established blog): Moderately valuable
- Link from DA 5 site (brand new or low-quality): Minimal value
For Michael: A backlink from Fine Woodworking (DA 62) would carry far more weight than 20 backlinks from brand-new personal blogs (DA 8-12).
Factor 2: Topical Relevance
A link from a relevant site in your industry is worth more than a link from an irrelevant site, even if the irrelevant site has higher authority.
Example for Michael:
- Woodworking blog (DA 35): High value (perfect relevance)
- General lifestyle magazine (DA 60): Moderate value (high authority but less relevant)
- Auto repair blog (DA 55): Low value (no topical connection)
The principle: Relevance + Authority = Maximum value
Factor 3: Link Placement and Context
Editorial link within article content: Highest value (genuine endorsement)
Example: "For more detail on this technique, see this comprehensive guide to basic joinery."
Sidebar or footer link: Lower value (often navigational, not editorial)
Author bio link: Moderate value (common in guest posts, generally acceptable
Factor 4: Follow vs. NoFollow
Follow links (default): Pass ranking power to your site
NoFollow links: Include rel="nofollow" attribute telling Google not to pass ranking power
When NoFollow is used:
- Paid advertisements (Google requires this)
- User-generated content (blog comments, forums)
- Links the site doesn't fully trust
Do NoFollow links still matter?
Yes, but differently:
- Still drive traffic (people can click them)
- Still build brand awareness
- May lead to Follow links indirectly (people discover your content)
- Just don't pass direct ranking power
Factor 5: Anchor Text
What it is: The clickable text of the link
Anchor text: "beginner woodworking guide"
Why it matters: Tells Google what the linked page is about
Natural anchor text looks varied:
- Branded: "Michael's Woodworking Blog" (30-40%)
- Generic: "click here," "this guide" (20-30%)
- Topical: "woodworking tutorial," "joinery guide" (20-30%)
- Exact-match: "beginner woodworking guide" (10% max)
Red flag: If 90% of your backlinks use the exact same commercial keyword as anchor text, Google sees that as manipulation.
Michael's Quality Assessment
His 2 existing backlinks:
Link 1: Friend's blog (DA 9, woodworking-related, sidebar link, Follow)
- Value: Low but safe (relevant topic, just low authority)
Link 2: Twitter profile (DA 95 for twitter.com, but NoFollow, user-generated)
- Value: Zero for SEO (NoFollow means no ranking power)
Conclusion: He essentially has one low-quality backlink. He needs to earn quality backlinks from established woodworking sites.
Where Backlinks Come From: The Three Ways
Backlinks don’t appear randomly, they are acquired in specific ways. In practice, most links come from three core sources: links you earn naturally through valuable content, links you build through outreach and relationship-driven efforts, and links you create yourself through profiles or directories.
Understanding these three paths helps you distinguish between sustainable, authority-building strategies and low-impact tactics, so you can focus your efforts where they truly influence SEO performance.
1. Natural/Earned Backlinks
What they are: Links given freely because someone found your content valuable and decided to reference it.
Examples:
- A woodworking blogger discovers Michael's tool guide and links to it in their own article
- A journalist writing about DIY hobbies quotes Michael's expertise
- A Reddit user shares Michael's tutorial in a woodworking community
How to get them: Create genuinely valuable content that others naturally want to reference. This is the hardest but most sustainable approach.
Michael's challenge: His content IS valuable, but he's too new for people to have discovered it yet.
2. Built Through Outreach
What they are: Links acquired by deliberately asking site owners, bloggers, or journalists to link to your content.
Examples:
- Michael emails woodworking bloggers asking them to consider linking to his comprehensive guide
- Michael offers to write a guest post for a home improvement blog (with link back to his site)
- Michael finds broken links on woodworking resource pages and suggests his content as replacement
How to get them: Strategic outreach, relationship building, offering value. Time-intensive but effective.
3. Self-Created (Low Value)
What they are: Links you create yourself by adding your URL to directories, forums, or comment sections.
Examples:
- Adding Michael's blog to woodworking directories
- Forum signatures with links
- Blog comment sections
Value: Mostly minimal. Google knows these are self-created. Some can drive traffic even if they don't boost rankings.
Danger: If overdone in spammy ways, these can actually trigger penalties.
The realistic path for most websites:
Start by creating content worth linking to. Then combine earned links (as your content gets discovered) with strategic outreach (proactively asking relevant sites to link).
Michael's plan: Focus on guest posting for established woodworking blogs and reaching out to sites that have linked to similar content from competitors.
What You Should Do Next: Beginner Action Steps
Now that you understand what backlinks are and why they matter, the next step is turning that knowledge into action.
Instead of chasing hundreds of links, beginners should focus on building a strong foundation: improving content quality, identifying relevant websites in their niche, and earning links through value rather than shortcuts.
Starting with clear priorities and realistic expectations will help you build authority steadily, and avoid the common mistakes that slow down SEO progress.
If you're starting from zero (like Michael):
Step 1: Check Your Current Backlinks
Use free tools:
- Google Search Console (free, shows backlinks Google has found)
- Ahrefs Backlink Checker (free tier shows top 100 backlinks)
- Moz Link Explorer (free account shows some backlinks)
Goal: Understand your baseline. How many backlinks do you have? From what types of sites?
Step 2: Analyze Your Top Competitors
Look at sites ranking on page 1 for your target keywords:
- How many backlinks do they have?
- Where are those backlinks coming from?
- What's the gap between their backlink profile and yours?
Goal: Understand the backlink level needed to compete in your niche.
Step 3: Create One Genuinely Link-Worthy Piece of Content
Before pursuing backlinks, create content that's worth linking to:
- Comprehensive guides (the most thorough resource on a specific topic)
- Original research or data
- Tools or calculators
- Visual content (infographics, detailed diagrams)
Michael's approach: He created "The Complete Guide to Essential Woodworking Tools for Beginners (50+ Tools Reviewed)", 5,000 words with photos, detailed reviews, and buying guidance. This became his most link-worthy asset.
Step 4: Start With One Simple Strategy
Don't try everything at once. Pick one approach:
Guest posting: Pitch one article to a relevant blog in your niche
or
Resource page outreach: Find 10 resource pages listing content like yours, ask to be added
Goal: Earn your first 3-5 quality backlinks and learn the process.
Step 5: Measure and Learn
Track what happens:
- Are you earning backlinks?
- Are rankings improving (check after 2-3 months)?
- What's working vs. what isn't?
Then: Scale what works. Refine what doesn't.
Michael's first 90 days:
- Created comprehensive tool guide (link-worthy asset)
- Guest posted on 2 woodworking blogs
- Reached out to 8 resource pages (added to 2)
- Result: 4 new backlinks (DA 28-52)
- Rankings: Moved from page 8 to page 4 for "beginner woodworking tools"
Not page 1 yet, but visible progress from the starting point of essentially zero.
Conclusion: Backlinks Aren't Optional, But They're Not Magic Either
Backlinks are links from other websites to yours. Google uses them as votes of confidence. More quality votes = higher rankings.
You need them to compete. Start by understanding what you have, what competitors have, and close the gap strategically over time.
What Michael learned:
"Backlinks aren't some secret SEO hack. They're just one website telling Google 'this other website has something worth seeing.' The more of those endorsements you have, especially from sites people trust, the more Google trusts you too.
I can't skip them. The sites ranking above me have backlinks. If I want to compete, I need them too.
But I also can't force them overnight. Building backlinks takes time, creating content worth linking to, reaching out to other site owners, building relationships. It's months of work, not days.
The good news: it's doable. I started with two worthless backlinks. Six months later, I have 18 quality backlinks. My traffic is up 8x. I'm visible on page 2-3 for my main keywords now instead of buried on page 8.
The path forward is clear: keep creating valuable content, keep reaching out, keep earning links one at a time. It compounds."
FAQ
What is a backlink with an example?
A backlink is a link from one website to another. In SEO, it acts as a vote of confidence from the referring site to the linked site.
For example, if a digital marketing blog writes an article about content strategy and links to your guide on keyword research, that clickable link pointing to your website is a backlink. The more authoritative and relevant the referring site is, the more valuable the backlink tends to be.
Is backlink important for SEO?
Yes, backlinks remain one of the most important ranking factors in SEO. Search engines like Google use backlinks to evaluate a website’s credibility, relevance, and authority.
High-quality backlinks can improve search rankings, increase organic traffic, and help new pages get indexed faster. However, low-quality or manipulative backlinks can negatively impact performance, so quality matters more than quantity.
How do I create backlinks for my website?
You don’t “create” backlinks in the technical sense, you earn them. Some effective ways to build backlinks include:
- Publishing in-depth, original, or data-driven content
- Guest posting on reputable industry websites
- Conducting digital PR campaigns
- Fixing broken links on other sites and offering your content as a replacement
- Getting listed in credible directories or resource pages
The most sustainable approach focuses on providing value that other websites naturally want to reference.
What do SEO backlinks do?
SEO backlinks signal trust and authority to search engines. When reputable websites link to your content, it indicates that your page is useful and relevant.
Backlinks help:
- Improve search engine rankings
- Increase domain authority
- Drive referral traffic
- Support faster indexing of new content
In short, backlinks strengthen your website’s overall visibility and competitive positioning in search results.
