opa.org.uk Backlinks Profile
scan complete · 2msComplete backlink analysis for opa.org.uk: Domain Rating, referring domains, and top referrers — all from real Common Crawl data.
Domain rating
0–100 authority score
Referring domains
123
unique sites linking to opa.org.uk
Authority rank
#1,403,067
global position in Common Crawl index
Harmonic centrality
15,592,070
raw graph-theoretic score (higher = more central)
PageRank position
#1,287,976
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 opa.org.uk, 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 123 · ranked by authority
#1blogspot.comDR 93→#2google.comDR 65→#3wales.nhs.ukDR 35→#4hee.nhs.ukDR 28→#5cancerresearchuk.orgDR 27→#6justgiving.comDR 26→#7stgeorges.nhs.ukDR 24→#8patient.infoDR 21→#9digestivecancers.euDR 19→#10cht.nhs.ukDR 18→
Showing top 10 of 123 total. Upgrade for top 100 + CSV export →
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