aiche.org

Aiche.org Publications and member center

The American Institute of Chemical Engineers AIChE is the worlds leading organization for chemical engineering professionals, with more than 40,000 members from 93 countries.

Authority

67/100

Safety

90/100

Known risk signals, not a check pass rate

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The site's bot protection blocked AboutUs's HTTPS check; all 1 of the other checks passed (Sep 29, 2026).

DNS

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Current facts

Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.

Authority & Safety, with the evidence

How this is scored →

Authority 67/100 — ahead of 67% of the August 2026 scored sampleClear

Why this authority score

67 is a percentile: higher than 67% of sites we score.

How it's calculated

Prominence (Tranco rank #59,158)+7
Verified continuity: 34.4 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+13

Model score: 34/99 — what these reason lines add up to.

Published Authority (percentile): 67/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.

Safety evidence

No unexpired threat-feed result; name-similarity check available (recorded about 39 days ago); 3/3 transport and email checks available (oldest recorded about 39 days ago). This is evidence coverage, not a probability that a website is safe.

No caution flags in the available scoring observations; this is not a complete safety assessment

Site history

Dated record — historical facts always carry their date.

1992
Domain registered (May 7, 1992).
2006
First tracked by AboutUs (Jun 19, 2006); profile edited 5 times through 2014.
2026
Checked today — The site's bot protection blocked AboutUs's HTTPS check; all 1 of the other checks passed (Sep 29, 2026).

✓ domain continuity 34 years registered✓ live verified Sep 29, 2026

Common questions

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Correction review promise

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