Best Backlink Checker Tools for SEO and Link Building
Backlinks are still one of the clearest signals that other websites trust, cite, or recommend your content. A backlink checker helps you see who links to you, who links to competitors, which pages attract links, and where link opportunities may exist.
The mistake is treating backlink tools like scoreboard software. More links is not always better. A small number of relevant, editorial links from trusted websites can matter more than thousands of weak directory links.
Quick Comparison
| Tool | Best For | Strength |
|---|---|---|
| Ahrefs Site Explorer | Competitor backlink research | Large link database and strong filtering |
| Semrush Backlink Analytics | Campaign workflows and outreach context | Good link analysis inside a broader SEO suite |
| Moz Link Explorer | Domain Authority and link overview | Simple authority metrics and competitor checks |
| Majestic | Link intelligence and topical trust | Strong backlink-specific metrics |
| Google Search Console | Links Google reports for your verified site | Free first-party view of your own property |
| Bing Webmaster Tools | Free backlink and site diagnostics | Useful second search-engine source |
| SE Ranking | Rank tracking plus backlinks | Good mid-market all-in-one option |
| Serpstat | Competitor SEO research | Useful for budget-conscious teams |
| Monitor Backlinks | Link monitoring alerts | Helpful for tracking new and lost links |
| LinkResearchTools | Risk and link cleanup workflows | Advanced link auditing |
1. Ahrefs Site Explorer
Ahrefs is often the first tool SEOs open for backlink research. It is strong for competitor links, referring domains, anchors, top linked pages, lost links, and content that naturally earns mentions.
Use it to answer practical questions: Which competitor pages attract the most links? Which domains link to several competitors but not to us? Which of our pages lost important links? Which content formats earn links in this market?
2. Semrush Backlink Analytics
Semrush is useful when backlink research is part of a bigger campaign. You can move between link analysis, keyword gaps, competitor research, rank tracking, and outreach planning in the same ecosystem.
It is a good fit for agencies and marketing teams that need reporting and project management around link building.
3. Moz Link Explorer
Moz Link Explorer is straightforward and widely recognized for Domain Authority and Page Authority metrics. These are third-party metrics, not Google scores, but they can help compare relative strength across domains.
Use Moz when you need a simple view of backlink authority, spam signals, and competitor link profiles without building a complex workflow.
4. Majestic
Majestic is focused on backlinks. Its Trust Flow, Citation Flow, Topical Trust Flow, Fresh Index, and Historic Index are useful for understanding link quality, quantity, topical relevance, and change over time.
Use Majestic when link analysis itself is the main job, especially for competitor research, quality checks, and historical backlink exploration.
5. Google Search Console Links Report
Search Console is free and essential, but it is limited to properties you can verify. It will not show every competitor link opportunity, but it gives a useful first-party view of your own linked pages, linking sites, and anchor text.
Use it to find your most linked pages, confirm that important pages attract links, and spot unusual anchor patterns.
6. Bing Webmaster Tools
Bing Webmaster Tools adds another free source of link data. It is useful because search engines crawl and report the web differently. If you only use one source, you can miss patterns.
For small sites, Search Console plus Bing Webmaster Tools may be enough before paying for a link platform.
7. SE Ranking
SE Ranking combines rank tracking, keyword research, competitor analysis, and backlink monitoring. It is often attractive for teams that want a broader SEO toolkit at a lower cost than enterprise suites.
Use it if you want link monitoring beside rank tracking rather than a dedicated link-only workflow.
8. Serpstat
Serpstat is another all-in-one SEO platform with backlink analysis, keyword research, competitor research, and site audit features. It can work well for smaller teams that need many SEO functions in one subscription.
Use it when budget matters and you need a practical mix of data rather than the deepest possible backlink index.
9. Monitor Backlinks
Monitor Backlinks is focused on tracking link changes. It is useful when you care about alerts for new links, lost links, and competitor link movement.
Use it if your link building process depends on follow-up. A lost link may be recoverable if you notice it quickly.
10. LinkResearchTools
LinkResearchTools is more advanced and often used for link risk analysis, cleanup, and detailed link auditing. It is not necessary for every site, but it can be valuable when a domain has a messy link history.
Use it when link quality and risk matter more than simple prospecting.
How to Judge a Backlink
A good backlink usually has several of these qualities:
- It comes from a real page that humans can visit.
- The linking site is topically relevant.
- The link appears in useful editorial content.
- The anchor text is natural.
- The page receives or can receive organic traffic.
- The site is not obviously built only to sell links.
- The link points to a page that deserves the citation.
Do not chase a metric alone. Domain Authority, Domain Rating, Trust Flow, and similar scores are useful filters, but relevance and editorial context matter more.
Use BuildQuill Around Link Campaigns
Before asking for links, make sure the target page is worth linking to. Use the SERP Preview for title and description checks, the Open Graph Preview for share appearance, the URL Parser for campaign URLs, and the Redirect Generator when replacing old URLs.
Backlink tools show opportunities. Better assets, clearer pages, and cleaner outreach turn those opportunities into links.