thinkorswim.com

ThinkOrSwim.com offers stock trading, investing & online stock brokers

ThinkOrSwim.com is an online brokerage platform for stock and options trading. It serves individual investors and traders looking to buy and sell stocks and options. The platform is based in Chicago, Illinois.

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Authority

69/100

Safety

90/100

Registered

Sep 9, 1999

27 years old · MarkMonitor Inc.

On record

since 2006

All 4 safety checks passed (Sep 21, 2026).

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 69/100 — ahead of 69% of the August 2026 scored sampleClear

Why this authority score

Prominence (Tranco rank #83,682)+7
Verified continuity: 27.0 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+14

These lines explain the underlying model score of 35/99, which is what places this site at 69/100 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 31 days ago); 3/3 transport and email checks available (oldest recorded about 31 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; self-description below is the 2013 record.

1999
Domain registered (Sep 9, 1999).
2006
First tracked by AboutUs (Jun 21, 2006); profile edited 3 times through 2013.
2013
Self-description at the time:
“ThinkOrSwim.com offers stock trading, investing & online stock brokers”
2026
Checked today — All 4 safety checks passed (Sep 21, 2026).

✓ domain continuity 27 years registered✓ live verified Sep 21, 2026

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