2024
Best SEO Tool
European Search Awards, judged by independent search practitioners across 27 countries.
Link Intelligence & Curation — Live Database
2.3 billion outbound links, indexed every 15 minutes.
NDAGLinks is the curated link graph for high-signal discovery. We refresh 41 million editorial pages on a 15-minute cadence and rank every URL by trust, topical relevance, and editorial standards — surfacing the 1.4% worth linking to.
- 2.3Boutbound links indexed
- 41Meditorial pages
- 15mrefresh cadence
- 2.3B Outbound links indexed across the live editorial web
- 41M Editorial pages crawled domains up from 6.4M in 2022
- 15m Refresh cadence not weekly like legacy tools
- 3,800+ Paying SEO teams across 64 countries
- 71 Customer NPS, Q1 2025 3h 12m saved per session
Index trajectory · 2022 – 2025
Three years of compounding coverage, plus the four verticals our audience publishes in.
NDAGLinks has been crawling editorial outbound links continuously since founding in 2021. The chart below is the real indexed-domain count — not a marketing number — and the verticals are where coverage runs deepest today.
Indexed domains
millions
6.4M domains at founding → 41M today. Every refresh re-checks link velocity, editorial standards, and outbound patterns across the entire graph.
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01
B2B SaaS
Highest editorial-strictness pass rate (61%) — sourcing targets for comparison posts, listicles, and pillar pages.
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02
Fintech & Personal Finance
Includes regulatory, banking, and crypto sub-verticals. Strict YMYL-aware editorial filter applied.
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03
Developer Tools & Infrastructure
Engineering blogs, RFCs, and docs treated as first-class editorial sources, not just link farms.
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04
Health, Wellness & Longevity
E-E-A-T-aware scoring; only domains with named authorship and citations clear the editorial bar.
Indexed in the last 60 minutes
What just landed in the database
Six representative domains added in the last hour, surfaced from across our 2.3 billion outbound-link graph. Editorial category, hosting region, and live SignalScore shown for each — the same fields you see inside a Pro workspace.
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Climate · Policy EU
carbon-budget-review.eu
91 SignalScore -
Long-form · Essays UK
thelongformreview.co
78 SignalScore -
Health · Reporting NA
publich-healthbeat.org
88 SignalScore -
Architecture · Journal DE
baumeister-archiv.de
83 SignalScore -
Open Data · Civic Tech BR
dados-abertos-sus.br
74 SignalScore -
Industrial Design · Studio JP
kata-archive.jp
81 SignalScore
Independent credentials
Awards, funding, and where the team actually sits
2024
Top 50 B2B Marketing Tools
G2 Summer ranking, based on 12,400 verified reviews from marketing and SEO practitioners.
2023
SaaS Tool of the Year
Product Hunt Global Hackathon, chosen by community vote across 84,000 submissions.
€4.2M
Seed round, 2022
Led by Index Ventures and Atomico. Capital earmarked for index expansion and editorial-gate modeling.
Where we work
Tallinn · Berlin · Lisbon
Team size
38 people across 11 countries
Customer NPS, Q1 2025
71
Paying teams
3,800+ in 64 countries
Methodology, in plain language
How the database is actually built
We get asked, fairly often, how a 15-minute refresh can possibly touch 41 million pages without recycling last week's list. Here's the honest version of the pipeline — no marketing layer on top of it.
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1 · Editorial crawl
We start from a curated seed of domains that publish original reporting, primary research, or long-form editorial — the kind of pages a senior editor would actually link out from. The seed is human-reviewed and updated quarterly; it is not a DR-sorted export of any competitor's index.
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2 · Outbound-link extraction
From each page we extract every editorial outbound link — not nav, not footer, not sidebar widgets. Across 41 million pages that produces 2.3 billion links, which we deduplicate by destination domain and by anchor text cluster.
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3 · SignalScore (0–100)
Each destination is scored on four axes: domain authority, topical relevance to the source page, editorial standards (writing, sourcing, corrections policy), and outbound-link velocity. The four signals are combined into a single comparable SignalScore you can sort and filter on.
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4 · Editorial-quality gate
Roughly 74% of "high DR" domains surfaced by legacy tools fail this step at NDAGLinks — content farms, link-sold networks, AI-spun directories. Only the surviving ~1.4% of URLs make it into the searchable index.
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5 · 15-minute refresh
Every fifteen minutes the crawl pass runs again, diffs against the previous pass, and updates the index. Newly discovered domains appear in the live sample above within one cycle of being linked from a qualifying editorial source.
The full methodology — including the SignalScore weighting and the editorial-gate rubric — is published in detail at /methodology and reviewed by an outside panel every quarter.