Backlinks are still the ranking currency
Every ranking study says the same thing: pages with more quality referring domains outrank pages without them. Content makes you eligible; links make you rank. Which makes backlink data — who links to you, who links to competitors, what those links are worth — the most commercially valuable information in SEO.
PoolTool's free backlink checker shows you the top backlinks pointing at any domain: source pages, anchor text, and authority signals. No signup, no credit card — paste a domain, get the data.
How to read backlink data like a professional
Four fields tell you almost everything. **Referring domain authority** — a link from a DR 70 industry site outweighs fifty from unknown blogs; quality dominates quantity at every level of the algorithm. **Anchor text** — the clickable words; natural profiles mix brand anchors, URLs, and topical phrases, while profiles stuffed with identical keyword anchors trigger over-optimization flags. **Link type** — editorial in-content links pass the most value; footer, sidebar, and comment links pass little. **Follow status** — dofollow links pass authority; nofollow links still drive traffic and diversify your profile naturally.
The three checks worth running today
**Your own domain**: find your strongest links (double down on whatever earned them), spot any suspicious links (spam directories, foreign-language link farms — disavow candidates), and see which pages attract links naturally (make more content like that).
**Your top competitor**: their link profile is your prospecting list — every site linking to them demonstrably links to sites like yours. Export, filter by authority, and work the list.
**A site about to link to you**: before celebrating a new link (or paying for a guest post), check the site's own profile. High DA with zero traffic and a spammy link neighborhood is a link farm in a costume — those links cost you rather than help you.
Free checker vs Ahrefs and Moz
The free PoolTool checker covers everyday reconnaissance: top links, quick competitor peeks, link-quality spot checks. Professional link building at scale needs the full indexes — Ahrefs ($129/month officially, $6 via PoolTool group buy) has the largest live link index with historical data and link-intersect analysis; Moz Pro ($2 via group buy) adds DA/PA and spam scores as a verification layer.
The working pattern: free checker for daily questions, group buy Ahrefs for campaign-level prospecting. You will know you have outgrown the free tier the day you need more than the top links — and by then the $6 will be an obvious investment.
