diigo.com

Diigo is a social annotation and bookmarking platform that lets users highlight, annotate, and share notes directly on web pages. It combines personal curation tools with a public layer where readers can comment on and discuss the same content, turning web pages into collaborative, interactive spaces.

Authority

78/100

Safety

90/100

Known risk signals, not a check pass rate

Registered

Dec 22, 2004

21 years old · GoDaddy.com, LLC

Full report Claim profile Suggest official facts Visit website Claiming, verifying, and correcting is always free.

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

On record since 2004 — see history

DNS

AboutUs has not vetted this site. 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 78/100 — ahead of 78% of the August 2026 scored sampleClear

Why this authority score

78 is a percentile: higher than 78% of sites we score.

How it's calculated

Prominence (Tranco rank #5,828)+9
Verified continuity: 21.8 years (RDAP registration)+10
Security & email hygiene+4
Calibration adjustment (published map)+17

Model score: 40/99 — what these reason lines add up to.

Published Authority (percentile): 78/100 — 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 9 days ago); 3/3 transport and email checks available (oldest recorded about 9 days ago). This is evidence coverage, not a probability that a website is safe.

Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date; self-description below is the 2013 record.

2004
Domain registered (Dec 22, 2004).
2006
First tracked by AboutUs (Jun 20, 2006); profile edited 10 times through 2013.
2013
Self-description at the time:
“Diigo.com is an internet toolbar that allows highlighting and annotations”
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 21 years registered✓ live verified Sep 29, 2026

Common questions

Is diigo.com legit or a scam?

AboutUs doesn't label sites as "legit" or "a scam" — see the full record on this page for the dated registration, DNS, and safety facts we could verify, and decide for yourself.

Who owns diigo.com?

Nobody has completed AboutUs's owner verification for diigo.com. That's true of most sites here — it isn't itself a warning sign.

When was diigo.com registered?

diigo.com's registration dates to Dec 22, 2004 (21 years old), per public registration records. GoDaddy.com, LLC is the registrar on record today.

Got a different link you're not sure about? Check it or compare diigo.com to another site.

Suggest official facts

Correct a description, link or other detail. Submissions are reviewed before publication.

Suggest official facts

Propose corrections now; verification still controls trusted owner status.

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Correction review promise

Official facts can help this public profile, but publication waits for moderation, evidence, and owner-proof gates.

Correction review promise: Every submitted official fact is saved for moderation before it can change the public profile.
Evidence before publication: Reviewers compare your official URL, evidence URL, and note against the visible report findings before accepting changes.
Owner proof before control: Unverified corrections can improve the report, but owner status, DNS control, and paid outcomes still require proof.
Secure same-site intake: AboutUs accepts this public correction only from AboutUs pages, keeps the response uncached, and rate-limits noisy requests.

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