nih.gov Backlinks Profile

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Complete backlink analysis for nih.gov: Domain Rating, referring domains, and top referrers — all from real Common Crawl data.

Domain rating

0–100 authority score

Referring domains

583,719

unique sites linking to nih.gov

Authority rank

#26,004

global position in Common Crawl index

Harmonic centrality

16,918,806

raw graph-theoretic score (higher = more central)

PageRank position

#102,389

classical PageRank ranking (Google's original signal)

What we measure

Authority signals

Domain Rating computed from the Common Crawl harmonic centrality index — 10B+ links analyzed.

Network breadth

Referring domains = the number of unique websites that link to nih.gov, the metric SEOs trust most.

Honest data

We show only what we can measure exactly from the public web graph. No fake "estimated" multipliers.

Top referring domains

Showing 10 of 583,719 · ranked by authority

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