Acciusa.com: Half a Century of Endotoxin Testing Online

HealthDiagnostics CompanyReviewed 9 October 2026

Since 1974 the company behind acciusa.com, Associates of Cape Cod, has made endotoxin and glucan tests, and the domain now carries its catalogue, press releases and educational library.

Domain Authority
41
Moz
Domain Rating
50
Ahrefs
Spam Score
2%
Moz
Organic traffic
2.71K
Semrush, monthly
Ranking keywords
347
Semrush
Referring domains
1.44K
Moz
Domain age
30y 10m
Registry
Homepage backlinks
11.8K
Semrush (PBL)

Figures as of 9 October 2026 · What each figure means

Acciusa.com at a glance

Company
Associates of Cape Cod, Inc. (ACC)
Founded
1974, by Stanley Watson
Headquarters
Falmouth, Massachusetts; European HQ in Liverpool
Parent
Seikagaku Group company
Latest release
Fungitell QS launch, 30 September 2026

Few domains in a guest post directory belong to a company whose tests protect injectable drugs, but acciusa.com does. It is the site of Associates of Cape Cod, Inc., which the homepage calls a global leader in endotoxin and glucan detection and describes as a Seikagaku Group company. Its readers are quality-control scientists, microbiologists and clinical laboratories. That audience is why acciusa.com has earned so many links, and also why it is not a place to buy one.

Timeline for acciusa.com: 1974 Watson perfects LAL endotoxin test; 1977 FDA approves the test; 1995 Domain registered; 2004 Fungal infection screening test; 2018 Horseshoe crab project begins; 2021 PyroSmart NextGen launched; 2027 Registration runs to.
Key dates for acciusa.com, from 1974 to 2027.

From Horseshoe Crab Blood to Recombinant Reagents

The company story starts in 1974, when founding scientist Stanley Watson perfected the modern endotoxin test using limulus amoebocyte lysate, or LAL, drawn from horseshoe crabs. The FDA approved the test in 1977. A clinical test for invasive fungal infections followed in 2004, a Horseshoe Crab Sustainability Project began in 2018, and in 2021 the company introduced PyroSmart NextGen, a recombinant reagent that mimics the LAL cascade without crab blood.

Global headquarters are in Falmouth, Massachusetts, with a European base in Liverpool. The story page does not say when Seikagaku became the parent.

Bar chart for acciusa.com: Moz Domain Authority 41, Ahrefs Domain Rating 50, Moz Spam Score 2%, against a health median DA of 38 and DR of 50.
acciusa.com: DA 41, DR 50, Spam Score 2%. Dashed lines mark the health median.

The Two Product Lines on Acciusa.com

The catalogue splits in two. Bacterial endotoxin testing covers LAL reagents, the recombinant reagent, glucan detection, accessories, hardware, software and automation, plus contract testing, training and an inter-laboratory qualification service. The clinical side covers the Fungitell and Fungitell STAT assays and the Beacon Diagnostics Laboratory, described as CLIA-certified.

Around the products sit tools such as certificates of analysis and a gel-clot dilution calculator, safety data sheets, package inserts, webinars, publications and an endotoxin forum. The homepage also lists upcoming events in Prague and Biarritz in October 2026.

Grouped bar chart of Moz DA and Ahrefs DR for acciusa.com and similar listings: acciusa.com DA 41, DR 50; clipboardhealth.com DA 35, DR 57; medicare.com DA 53, DR 58; manzoeyecare.com DA 18, DR 4; massuerfinder.com DA 1 (Confirm Manually), DR 0.
How acciusa.com compares on DA and DR with clipboardhealth.com, medicare.com, manzoeyecare.com, massuerfinder.com.

News on Acciusa.com Is Corporate, Not Open

The press release archive runs back to 2020. Recent items include the commercial launch of Fungitell QS on 30 September 2026, a regulatory milestone for recombinant endotoxin testing on 20 April 2026, and an FDA Breakthrough Device Designation for testing cerebrospinal fluid with Fungitell in August 2024. Earlier entries cover the company's 50th anniversary, an innovation award and the release of its one millionth horseshoe crab through the sustainability project.

There is no blog, no author pages and no write-for-us link. Every item is either a company announcement or press coverage of the company. An acciusa.com guest post, in the normal sense of a paid article with a link, simply has nowhere to live on this site.

Bar chart comparing acciusa.com's organic traffic (2.71K a month) and ranking keywords (347) with the health and directory medians.
acciusa.com draws 2.71K organic visits a month from 347 keywords, set against the health and directory medians.

Sustainability and Education as the Other Content Pillars

Two sections beyond the catalogue carry most of the site's non-commercial material. The sustainability area covers sustainability in endotoxin testing and the Horseshoe Crab Project, which the story page dates to 2018. The press archive records the release of the project's one millionth horseshoe crab in November 2021. That work sits at the centre of a long industry debate about relying on crab blood, and the recombinant reagent launched in 2021 is the company's commercial answer to it. Regulators have moved the same way: recombinant factor C was added to the European Pharmacopoeia in 2016, and the US Pharmacopeia chapter recognising it as an alternative to LAL became official in May 2025.

The educational content area is broader than most supplier sites offer. It lists endotoxin supplements, publications and articles, Fungitell bulletins, webinars and workshops and training, including the endotoxin forum. These are technical resources for people who run tests every day, not marketing blog posts. They are written or curated by the company, often with scientific references, and they help explain why so many laboratories, universities and trade publications link to the domain.

Media coverage collected in the archive adds another angle. In June 2020 the press page lists outside stories from the Cape Cod Times and Fox News about horseshoe crab blood and COVID-19 vaccine safety testing. Coverage of that kind brings links from general news sites, not just from the life-science trade press, and it widens the domain's footprint well beyond its specialist customer base.

Careers pages, including a summer work programme, and a distributor portal complete the picture of a manufacturer that uses its site as a full corporate hub. There is no section where an outsider's article would naturally appear.

Bar chart of where acciusa.com's backlinks point: 11.8K to the homepage URL, 22.8K to the hostname and 58.7K across the whole domain.
Backlinks to acciusa.com: 11.8K to the homepage URL, 22.8K to the hostname, 58.7K domain-wide.

Why Acciusa.com Still Matters to Health Marketers

Its value for a buyer is indirect. The domain shows what a naturally earned link profile looks like in life sciences: citations from journals, regulators, trade press and distributors. If you work in pharmaceutical manufacturing, lab equipment or diagnostics, a genuine partnership, co-hosted webinar or conference listing could earn a mention. Anyone offering to sell a placement on acciusa.com should be treated with suspicion; nothing on the site suggests that option exists. Our paid guest post rules explain how to spot resold or fake placements.

It is also worth noting the audience overlap. Pharmaceutical quality teams, hospital laboratories and regulators all read acciusa.com for product documentation, so the domain sits inside a tightly regulated conversation. Any brand mentioned there gains credibility precisely because the company is selective about what it publishes.

Bar chart of acciusa.com's link profile in Moz: 1.44K referring domains, 908 sending nofollow links and 287 since deleted.
1.44K referring domains link to acciusa.com; 908 of them send nofollow links.

What the Acciusa.com Figures Say

The domain was registered on 7 December 1995, so it is 30 years, 10 months, 2 days old, held through GoDaddy.com, LLC with renewal due 6 December 2027. DA is 41 and DR is 50, backed by 1,436 referring domains and 274K backlinks. The spam score is 2%, and the DA history has stayed between 34 and 44.

Organic traffic is modest at about 2.71K visits a month across 347 ranking keywords, roughly 7.8 per keyword. That fits a specialist supplier whose buyers search for product names and technical terms, not general health topics. See the metrics page for definitions, or the Health category to compare with sites that do publish outside writers.

Line chart of acciusa.com's Moz Domain Authority over 53 readings, from 35 to 41, with a low of 34 and a high of 44.
Moz DA for acciusa.com across 53 readings: low 34, high 44, latest 41.

Strong authority, a long history and a clean link profile make acciusa.com one of the more trusted domains in this batch, well above cascadedebt.com on referring domains. None of that is for sale. The site publishes only its own news, and its readers are regulated professionals who would notice anything off-topic.

Pick acciusa.com as a benchmark, or as a partnership target if your company genuinely serves the endotoxin or fungal diagnostics market. For a paid placement, look elsewhere using our guide.

Grid of eight AI crawlers and acciusa.com's robots.txt: 0 blocked, 0 partly restricted, 8 allowed.
acciusa.com's robots.txt: 0 of eight AI crawlers blocked, 0 partly restricted, 8 allowed.

Acciusa.com Metrics

Authority
MeasureValueSource
Domain Authority41Moz
Domain Rating50Ahrefs
DA minus DR-9Calculated
Spam Score2%Moz
Link propensity153Moz
Links
MeasureValueSource
Referring domains1,436Moz
Nofollow referring domains908Moz
Deleted referring domains287Moz
External links274,223Moz
External nofollow links5,848Moz
Links per referring domain191Calculated
Backlinks to the homepage URL11,771Semrush
Backlinks to the hostname22,764Semrush
Backlinks to the whole domain58,749Semrush
Search visibility
MeasureValueSource
Organic traffic a month2,707Semrush
Ranking keywords347Semrush
Visits per keyword7.8Calculated
Traffic cost a month$193Semrush
Semrush rank545,336Semrush

Acciusa.com Domain Record

Registered7 December 1995 (30 years, 10 months, 2 days)
Expires6 December 2027
Last changed6 September 2022
RegistrarGoDaddy.com, LLC (IANA 146)
Statusclient delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Nameserverspdns03.domaincontrol.com, pdns04.domaincontrol.com
DNSSECNot signed

Acciusa.com robots.txt and Sitemaps

AI crawlers in robots.txt
CrawlerWhat applies
GPTBotGeneral (*) rules: allowed
ClaudeBotGeneral (*) rules: allowed
Google-ExtendedGeneral (*) rules: allowed
PerplexityBotGeneral (*) rules: allowed
CCBotGeneral (*) rules: allowed
BytespiderGeneral (*) rules: allowed
Applebot-ExtendedGeneral (*) rules: allowed
Meta-ExternalAgentGeneral (*) rules: allowed

Questions About Acciusa.com

Does acciusa.com take a guest post?
No. Acciusa.com has no blog or contributor page; its news section holds company press releases and media coverage. A paid acciusa.com guest post is not offered on the site.
What does the company behind acciusa.com make?
Acciusa.com sells bacterial endotoxin testing reagents, including LAL and the recombinant PyroSmart NextGen reagent, plus the Fungitell and Fungitell STAT assays used in screening for invasive fungal infections.
How old is the business behind acciusa.com?
The story page on acciusa.com dates the company to 1974, when founding scientist Stanley Watson refined the LAL endotoxin test. The domain itself was registered on 7 December 1995.
Why are the acciusa.com link figures high?
Acciusa.com shows DA 41, DR 50 and 1,436 referring domains, built over decades of scientific citations, regulatory news and industry coverage rather than sponsored posts.

Compare Acciusa.com with Similar Sites

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medicare.com Medicare.com · Insurance information site 53 58 N/A N/A N/A 29y 11m View profile
manzoeyecare.com Manzo Eye Care · Re-registered domain 18 4 7% N/A N/A 1y 11m View profile
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