Backlinks are links your website gets from other websites. They help users find relevant pages and help search engines understand trust, authority, and topic relevance.
Types of backlinks matter because an editorial link, directory link, comment link, and a spam link do not carry the same value. Some improve SEO. Some bring traffic. Some create risk.
This blog explains backlink structure, link attributes, helpful links, low-value links, risky links, and how to build a stronger backlink profile.
What Are Backlinks?
Backlinks are external links that point from another website to your website. They are called backlinks because they link back to your site.
A backlink can appear in a blog post, news article, directory listing, social profile, image credit, forum post, author bio, sidebar, footer, or resource page.
A backlink has six main parts: the source page giving the link, the target URL receiving the link, the anchor text users click, the link attribute such as dofollow, nofollow, sponsored, or UGC, the placement on the page, and the context around the link.
The value of a backlink depends on relevance, quality, placement, and purpose. A good backlink helps the reader and fits naturally into the page. A weak backlink exists only to influence search rankings.
Why Do Backlinks Matter in SEO?
Backlinks matter in SEO because they help search engines discover pages, understand content, and evaluate website authority.
When reputable websites link to your page, your content can appear more trusted. But link quality matters more than link quantity. A few relevant, high-quality backlinks can be more valuable than many weak links.
Backlinks support SEO through discovery, authority, relevance, referral traffic, and brand trust. A strong SEO strategy studies the source, anchor text, page quality, and intent behind every link.
What Makes a Backlink Valuable?
A backlink is valuable when it comes from a trusted, relevant, and crawlable page. It should help users understand the topic better or move to a useful next page.
A strong backlink usually has these qualities:
- The linking website is related to your industry or topic.
- The source page has real, useful content.
- The link appears naturally inside the main content.
- The anchor text clearly describes the linked page.
- The page can be crawled and indexed by search engines.
- The link is placed for user value, not only SEO.
- The source page does not link to spammy or unrelated websites.
For example, a backlink from a marketing blog to an SEO guide is relevant. But a backlink from a random gaming forum to the same SEO guide may look unnatural if there is no clear context.
Types of Link Attributes in Backlinks
The first way to classify links is by attribute. These attributes tell search engines what relationship exists between the linking page and the linked page.
1. Dofollow links
Dofollow backlinks are standard links without a rel attribute like nofollow, sponsored, or UGC. By default, normal hyperlinks are dofollow.
They can support rankings when they come from relevant, authoritative websites. Common examples include editorial links, resource page links, partner links, and trusted citations. Paid or irrelevant dofollow backlinks can create SEO risk.
Example: [ <a href=”https://example.com/”>Visit the homepage</a> ]
2. Nofollow links
Nofollow backlinks use the rel=”nofollow” attribute. This tells search engines not to treat the link as a full endorsement.
They may have less direct ranking value, but they can still bring referral traffic, leads, brand discovery, and trust. Common examples include links from comments, forums, social platforms, and some publisher websites.
Example: [ <a href=”https://example.com/” rel=”nofollow”>Visit the homepage</a> ]
3. Sponsored links
Sponsored links use the rel=”sponsored” attribute. They show that a link may be connected to payment, advertising, sponsorship, affiliate placement, or another commercial relationship.
Sponsored links should not be treated like editorial recommendations. They are useful for transparency and compliance.
Example: [ <a href=”https://example.com/” rel=”sponsored”>Check this offer</a> ]
4. UGC links
UGC links use the rel=”ugc” attribute. UGC means user-generated content. These links usually appear in forum posts, blog comments, social posts, reviews, and community discussions.
UGC links help platforms reduce spam because users can add links without editorial review.
Example: [ <a href=”https://example.com/” rel=”ugc”>Visit my website</a> ]
Link Placement Types: Contextual vs Non-Contextual
Link placement affects how users and search engines understand a backlink. A link inside relevant content usually gives more meaning than a link placed in a footer, sidebar, profile, or comment section. This is why backlinks should be reviewed by where they appear, not only by whether they are dofollow or nofollow.
1. Contextual Links in SEO: Meaning and Value
Contextual links are backlinks placed inside the main content of a page. They are surrounded by relevant text that explains why the linked page is useful.
Contextual links are usually stronger because they give users and search engines clear topic meaning.
Example: A blog about local SEO links to a Google Business Profile guide inside a paragraph about improving local rankings.
2. Non-Contextual Backlinks in SEO: Meaning and Value
Non-contextual links are backlinks placed outside the main content. They often appear in footers, sidebars, author bios, profiles, directory fields, or comment sections.
Non-contextual links can still help if the source is trusted and relevant, but they usually carry less SEO value than contextual links.
Example: A website adds a link to your homepage in a footer or profile section without explaining why the link is useful.
Difference Between Contextual and Non-Contextual Backlinks
Contextual backlinks appear inside relevant content and give stronger meaning. Non-contextual backlinks appear in footers, sidebars, profiles, directories, or comments and usually carry less SEO value.
| Factor | Contextual links | Non-contextual links |
|---|---|---|
| Placement | Inside main content | Outside main content |
| Context | Surrounded by relevant text | Little or no supporting text |
| User value | Clear and useful | Depends on the source |
| SEO value | Usually stronger | Usually weaker |
| Example | Link inside a niche article | Footer, sidebar, profile, or comment link |
Difference Between Editorial and Self-created links
Editorial links are given naturally by another website because your content is useful or credible. Self-created links are links you add yourself through directories, profiles, forums, comments, or author bios. Editorial links usually carry more authority, while self-created links mainly support visibility, consistency, and basic trust.
| Point | Editorial links | Self-created links |
| Meaning | Links another website gives by choice | Links you create yourself |
| Control | Controlled by the publisher or website owner | Controlled by you or your team |
| Common sources | News sites, blogs, podcasts, resource pages, research citations, and industry publications | Directories, business profiles, social profiles, forums, blog comments, author bios |
| SEO value | Usually stronger because they show trust and authority | Usually lower, but useful for discovery and consistency |
| Main purpose | Build authority, credibility, and topical relevance | Build basic online presence, local signals, and referral paths |
| Risk level | Lower when earned naturally from relevant sites | Higher if overused, spammed, or placed on low-quality sites |
| Best use | Digital PR, original research, expert content, useful resources | Local citations, business listings, brand profiles, and community participation |
How to Identify High-Quality and Low-Quality Backlinks
High-quality links have relevance, trust, traffic potential, and natural context. Low-quality links come from unrelated pages, thin content, spam networks, or websites made only to sell links.
| Point | High-quality backlinks | Low-quality backlinks |
| Source relevance | Come from websites related to your topic or industry | Come from unrelated or random websites |
| Content quality | Appear on useful, well-written pages | Appear on thin, copied, or low-value pages |
| Anchor text | Use natural and relevant anchor text | Use forced, keyword-stuffed, or spammy anchors |
| User value | Help readers find useful information | Exist mainly to influence rankings |
| Traffic potential | Can send real referral traffic | Usually have little or no real audience |
| Trust level | Come from credible websites with editorial standards | Come from spam networks, link farms, or sites made to sell links |
| SEO impact | Can support authority, rankings, and trust | Can create SEO risk or provide little value |
5 Helpful Backlinks That Can Improve Rankings and Trust
The best different types of backlinks are usually earned because your page is useful.
1. Editorial Backlinks
Editorial backlinks come from publications, blogs, or websites that cite your page as a source. These are valuable because they are given by choice.
2. Image Backlinks
Image backlinks happen when another website credits your image, chart, infographic, or original visual. These links can support authority and attribution.
3. Video Backlinks
Video backlinks come from pages that credit or reference your video source. They can appear on event pages, hotel pages, course pages, YouTube descriptions, and webinar pages.
4. Resource Page Backlinks
Resource page links come from curated pages that list useful tools, guides, or references. They work best when your page solves a real problem.
5. Original Research Backlinks
Original research earns links because writers need data. Statistics, surveys, benchmarks, and reports give journalists and bloggers something to cite.
These different types of backlinks help build authority because they are connected to usefulness, not manipulation.
5 Backlinks that May Help Less But Still Matter
Some links may not strongly improve rankings, but they can still support traffic and brand awareness.
1. Guest Post Backlinks
Guest post links come from articles you write for another website. They can help with visibility, referral traffic, and expertise, especially when the site is relevant.
2. Press Release Backlinks
Press release links usually have limited ranking value, but they can send referral traffic and increase branded searches when the news is real.
3. Comment Backlinks
Comment links should only be used when they genuinely add value to a discussion. Spam comments do not help SEO.
4. Directory Backlinks
Directory links can support local SEO when the directory is trusted, and business information is consistent.
5. Social Media Backlinks
Social links often use nofollow attributes, but they can help people discover your content and brand.
These different types of backlinks should be used for business value, not only ranking value.
10 Backlinks That Can Harm SEO
Some backlinks can harm SEO when they are created only to manipulate search rankings. These links usually come from low-quality, irrelevant, or spammy sources and can reduce trust instead of building authority.
Avoid these harmful backlink types:
1. Paid Follow Links
Paid links that pass ranking value can violate search engine guidelines.
2. Spammy Forum Links
Forum links become risky when they are posted only for promotion and add no value to the discussion.
3. Spammy Comment Links
Comment links can look manipulative when they are repeated across many blogs with forced anchor text.
4. Hidden Widget Links
Links hidden inside widgets can create unnatural link patterns.
5. Private Blog Network Links
PBN links are built to manipulate rankings and can create serious SEO risk.
6. Link Farm Links
Link farms exist mainly to exchange or sell links, not to help users.
7. Hacked-Site Links
Links placed on hacked websites are unsafe and unnatural.
8. Irrelevant Directory Links
Directory links from unrelated or low-quality sites usually provide little value.
9. Mass Guest Post Network Links
Guest posts from link networks often have thin content and repeated outbound links.
10. Exact-Match Anchor Spam
Repeating the same keyword-heavy anchor text can look unnatural to search engines.
Types of Backlink Categories and Their SEO Purpose
Backlink categories make link planning easier because each link should have a clear role. A strong backlink strategy does not ask only, “How many links can we get?” It asks, “Which link source supports this page and this business goal?”
1. Editorial Backlinks
Build authority and trust when another website naturally cites your content.
2. Resource Backlinks
Support useful content by placing your guide, tool, or page on a helpful resource list.
3. Local Citation Backlinks
Confirm business location, name, address, phone number, and service area.
4. Directory Backlinks
Support business discovery and listing consistency across trusted platforms.
5. Guest Post Backlinks
Help you reach a relevant audience through useful content on another website.
6. Press Release Backlinks
Share business news, announcements, launches, or updates.
7. Comment and Forum Backlinks
Add value to real discussions when the link genuinely helps users.
8. Image and Video Backlinks
Credit original media such as photos, charts, infographics, videos, or visual assets.
9. Sponsored backlinks
Disclose paid placements, sponsorships, affiliate links, or advertising relationships.
10. Toxic or Spam Backlinks
Should be removed, avoided, or reviewed because they can create SEO risk.
How to Acquire Valuable Backlinks
The safest way to earn backlinks is to create content that other websites want to cite. A strong linkable asset gives publishers, bloggers, journalists, and industry websites a clear reason to link to your page.
1. Publish Original Research
Create surveys, studies, or reports with fresh data that other writers can reference.
2. Create Local Data Pages
Share location-based insights, trends, or statistics that are useful for local audiences.
3. Add Industry Statistics
Build statistic pages that bloggers and journalists can cite in their content.
4. Offer Useful Calculators
Create simple tools that help users estimate cost, time, savings, ROI, or performance.
5. Design Visual Guides
Use charts, diagrams, or step-by-step visuals to explain complex topics clearly.
6. Publish Infographics
Turn data or processes into shareable visuals that websites can credit with a backlink.
7. Feature Expert Interviews
Interview industry experts and create content that others may reference or share.
8. Write Case Studies
Show real results, problems, processes, and outcomes that prove expertise.
9. Create Comparison Guides
Compare tools, services, methods, or options to help readers make better decisions.
10. Build Free Tools
Offer templates, checklists, generators, or audit tools that solve a real user problem.
After creating the asset, build relationships with relevant websites. Study what they already link to, then pitch your page as a useful resource for their readers.
Build a Safer Backlink Profile with Great Lakes DP
Great Lakes DP provides SEO services Michigan businesses can trust for safer backlink growth. We help you understand which links support rankings, which links bring traffic, and which links create SEO risk.
Our backlink strategy focuses on quality over quantity. We audit your current backlink profile, study competitor link sources, improve local citations, find relevant link opportunities, and monitor new or lost backlinks.
With Great Lakes DP, your website gets a cleaner, stronger, and more relevant backlink profile built for long-term SEO growth.
FAQs About Types of backlinks
Q1. What are the main types of backlinks in SEO?
The main types of backlinks include dofollow, nofollow, sponsored, UGC, editorial, directory, guest post, social media, image, video, and local citation backlinks. Each type has a different purpose and SEO value.
Q2. Which backlinks are best for SEO?
Editorial backlinks, resource page links, digital PR links, partner links, and relevant local citation links are usually the most valuable. These links come from trusted sources and fit naturally within the content.
Q3. Are dofollow backlinks better than nofollow backlinks?
Dofollow backlinks usually carry stronger SEO value because they can pass ranking signals. Nofollow backlinks may not pass the same value, but they can still bring referral traffic, brand visibility, and trust.
Q4. Can bad backlinks hurt my website?
Yes. Bad backlinks from spam sites, link farms, private blog networks, hacked websites, or irrelevant directories can harm SEO performance. They can make your backlink profile look unnatural.
Q5. Are directory backlinks good for SEO?
Directory backlinks can help when they come from trusted, relevant, or local directories. Low-quality directories that list every type of website without review usually have little value and may create risk.
Q6. How do I know if a backlink is high quality?
A high-quality backlink comes from a relevant, trusted, crawlable page. It uses natural anchor text, appears in useful content, and helps users find related information.
