simpsonmfg.com

SimpsOnmfg.com

Simpson Manufacturing Co. Inc. designs, engineers, and manufactures structural connectors, anchors, and venting systems for construction and appliance markets through its subsidiaries Simpson Strong-Tie Company, Inc. and Simpson Dura-Vent Company, Inc. The company serves new construction, retrofitting, and DIY customers from its headquarters in Pleasanton, California.

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Authority

46/100

Safety

89/100

Registered

Oct 10, 1996

29 years old · 1API GmbH

1 of 2 safety checks passed (Sep 17, 2026).

AboutUs has not vetted this site. 1 of 2 automated safety check did not pass. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.

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 46/100 — ahead of 46% of the August 2026 scored sampleSome caution flags

Why this authority score

Prominence (Tranco rank #600,690)+5
Verified continuity: 30.0 years (RDAP registration)+11
Security & email hygiene+2
Calibration adjustment (published map)+7

These lines explain the underlying model score of 25/99, which is what places this site at 46/100 using the August 2026 scored sample. Public Authority is capped at 99.

Safety evidence

No unexpired threat-feed result; name-similarity check available (recorded about 20 days ago); 3/3 transport and email checks available (oldest recorded about 20 days ago). This is evidence coverage, not a probability that a website is safe.

Recorded HTTPS check did not confirm a valid connection
Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date.

1996
Domain registered (Oct 10, 1996).
2026
Checked today — 1 of 2 safety checks passed (Sep 17, 2026).

✓ domain continuity 29 years registered✓ live verified Sep 17, 2026

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