How many backlinks does act.org have?

act.org is linked to from 9,233 other domains in the Common Crawl web graph (release cc-main-2026-jul-aug-sep). This counts referring domains, not individual backlinks, and Common Crawl does not see the whole web, so commercial tools that crawl more will show larger numbers.

How does act.org rank among all websites?

Its web graph rank (harmonic centrality) is 909 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 3,838. Majestic Million ranks it #6,488.

Is the act.org authority score the same as Moz DA or Ahrefs DR?

No. It is an independent score computed from open data (Common Crawl, Majestic Million, Chrome UX Report). It is consistent across all domains, so it works for comparing and filtering sites, but the numbers will not match the commercial tools.

Which websites link to act.org?

The best-connected referring domains of act.org in the Common Crawl web graph (release cc-main-2026-jul-aug-sep) are googleapis.com, google.com, wikipedia.org, amazon.com and cloudfront.net. This is a domain-level list from a quarterly crawl, so it names whole domains that link to act.org, not individual backlinks, and it is not complete.

What is the traffic rank of act.org?

act.org is in Chrome's global Top 500K websites in August 2026 (Chrome UX Report, a rank bucket rather than an exact position).

Domain authority

act.org domain authority

act.org has a domain authority score of 66 out of 100 (above average for a business website), based on 9,233 referring domains and a web graph rank of 909 among 133 million domains; its traffic rank is Top 500K websites (Chrome).

66 / 100

9,233

referring domains (backlinks from other domains)

#909

web graph rank of 133,241,980 domains

Top 500K

Chrome real-user traffic bucket

All metrics for act.org

Authority score	66 / 100
Referring domains	9,233
Web graph rank (harmonic centrality)	#909 (top 0.01%)
PageRank position	#3,838
Subdomains seen in the crawl	87
Majestic Million rank	#6,488
Majestic referring subnets / IPs	4,506 / 7,626
Traffic rank	Top 500K websites (Chrome)
Position by authority in our top 20,000	#2,318

Top referring domains of act.org

These are the 10 best-connected websites that link to act.org in the Common Crawl domain-level web graph (release cc-main-2026-jul-aug-sep, updated quarterly). act.org has 9,233 referring domains in total; 4,256 of them are among the 5,000,000 best-connected domains of the graph, which are the ones we can list and rank here.

#	Referring domain	Authority	Traffic rank
1	googleapis.com	99	Top 50K (Chrome)
2	google.com	98	Top 1K (Chrome)
3	wikipedia.org	91	Top 1K (Chrome)
4	amazon.com	88	Top 1K (Chrome)
5	cloudfront.net	87	Top 50K (Chrome)
6	amazonaws.com	87	Top 50K (Chrome)
7	blogspot.com	86	Top 50K (Chrome)
8	bit.ly	86	Top 1K (Chrome)
9	adobe.com	85	Top 1K (Chrome)
10	github.io	84	Top 50K (Chrome)

Domain-level data: each row is a whole domain that links to act.org at least once somewhere on its site, not a single backlink or page, and no anchor text or link type is included. Common Crawl samples the public web, so a link can be missing and commercial backlink tools will show more.

Traffic rank of act.org

act.org is in Chrome's global Top 500K websites (August 2026), and is listed in 10 countries. Six-month trend: down: in a lower bucket than 6 months ago (Top 100K then). In the global top 1M in 12 of the last 12 months.

Top countries

Country	Chrome rank in that country
United States	Top 50K
Egypt	Top 50K
India	Top 500K
Saudi Arabia	Top 100K
Indonesia	Top 500K
Nigeria	Top 100K
United Arab Emirates	Top 100K
Canada	Top 500K

Last 12 months (global)

2025-09	2025-10	2025-11	2025-12	2026-01	2026-02	2026-03	2026-04	2026-05	2026-06	2026-07	2026-08
Top 100K	Top 100K	Top 500K	Top 100K	Top 100K	Top 100K	Top 50K	Top 50K	Top 100K	Top 500K	Top 500K	Top 500K

Source: Chrome UX Report (Google, CC BY 4.0), the monthly popularity lists of origins by real Chrome page loads. A rank is a bucket, not an exact position: "Top 10K" means among the 10,000 most visited origins. It measures reach in Chrome, not visits, so it is not Similarweb traffic. Rank lists by country: Traffic rank by country.

How the authority score is calculated

The score is the average of two parts, each from 0 to 100:

Rank part: 100 × (1 − log10(rank) / log10(N))^0.6, where rank is the domain's harmonic centrality position in the Common Crawl web graph (how close it is to every other domain through links) and N is the number of ranked domains (133,241,980).
Link part: 100 × log10(1 + referring domains) / 7, so 10 million referring domains = 100.

For this domain: rank part 76.2 (web graph rank 909 of 133,241,980), link part 56.6 (9,233 referring domains), average 66.4, rounded to 66.

It is consistent across all 120 million domains in the data, so it is good for ranking and filtering lists. It is not Moz Domain Authority or Ahrefs Domain Rating. Referring domains count other domains that link to this one, not individual backlinks; no list of linking pages is included.

Domains with a similar authority score

#	Domain	Authority	Referring domains	Web graph rank	Traffic rank
2,314	econsultancy.com	66	9,501	1,507	not in Chrome's top 1M
2,315	usenix.org	66	9,451	1,176	Top 500K websites (Chrome)
2,316	sciencefocus.com	66	9,429	1,177	Top 100K websites (Chrome)
2,317	unicode.org	66	9,391	970	Top 500K websites (Chrome)
2,319	segment.com	66	9,128	1,094	Top 1M websites (Chrome)
2,320	rbc.ua	66	8,996	988	Top 10K websites (Chrome)
2,321	ssllabs.com	66	8,907	1,140	Top 500K websites (Chrome)
2,322	golang.org	66	8,847	1,214	not in Chrome's top 1M

Tech stack

act.org is built with Adobe Experience Manager, jQuery, Google Tag Manager, Apache HTTP Server, VWO and OneTrust (detected from the public home page). Full tech stack of act.org →

AI crawler policy

AI crawler policy: Open. GPTBot is allowed, ClaudeBot is allowed and PerplexityBot is allowed in its robots.txt (checked 2026-10-02). Does act.org block GPTBot? →

Compare and browse

FAQ

What is the domain authority of act.org?: act.org has a domain authority score of 66 out of 100 (above average for a business website), based on 9,233 referring domains and a web graph rank of 909 among 133 million domains; its traffic rank is Top 500K websites (Chrome). The score is our own open-data metric (0-100) and is not Moz Domain Authority or Ahrefs Domain Rating.
How many backlinks does act.org have?: act.org is linked to from 9,233 other domains in the Common Crawl web graph (release cc-main-2026-jul-aug-sep). This counts referring domains, not individual backlinks, and Common Crawl does not see the whole web, so commercial tools that crawl more will show larger numbers.
How does act.org rank among all websites?: Its web graph rank (harmonic centrality) is 909 out of 133,241,980 ranked domains, which puts it in the top 0.01%. Its PageRank position is 3,838. Majestic Million ranks it #6,488.
Is the act.org authority score the same as Moz DA or Ahrefs DR?: No. It is an independent score computed from open data (Common Crawl, Majestic Million, Chrome UX Report). It is consistent across all domains, so it works for comparing and filtering sites, but the numbers will not match the commercial tools.
Which websites link to act.org?: The best-connected referring domains of act.org in the Common Crawl web graph (release cc-main-2026-jul-aug-sep) are googleapis.com, google.com, wikipedia.org, amazon.com and cloudfront.net. This is a domain-level list from a quarterly crawl, so it names whole domains that link to act.org, not individual backlinks, and it is not complete.
What is the traffic rank of act.org?: act.org is in Chrome's global Top 500K websites in August 2026 (Chrome UX Report, a rank bucket rather than an exact position).