Is pdftab.com safe?

http://pdftab.com/

Low RiskStatus

Coveragestrong2 of 4 applicable core capabilities

Verdict

PDFTab offers a browser extension that alters search and new-tab settings; domain is old and clean on the browser threat feed but flagged by one AV engine.

pdftab.com is a content site operated by Tightrope Interactive, Inc. that promotes a browser extension. The extension is disclosed to change search and new-tab settings. The domain is over ten years old and passes the browser threat feed, yet one antivirus family has historically flagged the associated software.

Review the extension’s permissions and privacy policy before installing; the site itself is not flagged as malicious but the extension modifies core browser behavior.

Read full analysis

Loading saved screenshot

Preparing the saved page preview.

Saved site captureCaptured safely during this scan 4 antivirus engines flagged this URLChong Lua Dao, alphaMountain.ai, Forcepoint ThreatSeeker, Gridinsoft

Calibrated safety spectrum

Where this site sits

Dangerous1–20
High Risk21–44
Moderate Risk45–69
Low Risk70–84
Safe85–100

The score combines saved evidence strength and analysis quality. Coverage is reported separately.

01 · Investigation Brief

Investigation Brief

Extension changes browser settings

The site’s Terms of Service state that during installation the extension may change search settings, new-tab settings, add browser-action icons, and add additional features.

Mixed technical reputation

The registrable domain is 3674 days old and the browser threat feed returns no threat warning.

One independent antivirus family has historically reported an adverse result for the domain or associated software.

Why the score is 72

1 independent antivirus family reported an adverse result. This comes from a saved antivirus observation rather than a new submission, so treat the detection as real but confirm the timing. Coverage remains separate so missing sources cannot be mistaken for clean results.

02 · Security Evidence

Security evidence

Collected signals and independent provider data for this URL.

Antivirus Engines

4/ 90

detections

Saved result - stale

4 engines flagged this URL

Every saved adverse engine is listed below. The full provider matrix remains available for audit.

Malicious: 1
Suspicious: 3
Total: 90

Adverse antivirus results
Engine	Finding
Chong Lua DaoMalicious	malicious
alphaMountain.aiSuspicious	suspicious
Forcepoint ThreatSeekerSuspicious	suspicious
GridinsoftSuspicious	suspicious

All 90 engine results

Chong Lua Dao - malicious - Malicious
alphaMountain.ai - suspicious - Suspicious
Forcepoint ThreatSeeker - suspicious - Suspicious
Gridinsoft - suspicious - Suspicious
0xSI_f33d - unrated - Clean
Abusix - clean - Clean
Acronis - clean - Clean
ADMINUSLabs - clean - Clean
AILabs (MONITORAPP) - clean - Clean
AlienVault - clean - Clean
AlphaSOC - unrated - Clean
Antiy-AVL - clean - Clean
ArcSight Threat Intelligence - unrated - Clean
AutoShun - unrated - Clean
Bfore.Ai PreCrime - unrated - Clean
BitDefender - clean - Clean
Bkav - unrated - Clean
BlockList - clean - Clean
Blueliv - clean - Clean
Certego - clean - Clean
ChainPatrol - unrated - Clean
CINS Army - clean - Clean
CRDF - clean - Clean
Criminal IP - unrated - Clean
CSIS Security Group - unrated - Clean
CTX AI - clean - Clean
Cyan - unrated - Clean
Cyble - clean - Clean
CyRadar - clean - Clean
desenmascara.me - clean - Clean
DNS8 - unrated - Clean
Dr.Web - clean - Clean
EmergingThreats - clean - Clean
Emsisoft - clean - Clean
Ermes - unrated - Clean
ESET - clean - Clean
ESTsecurity - clean - Clean
Fortinet - clean - Clean
Fortra - unrated - Clean
G-Data - clean - Clean
GCP Abuse Intelligence - unrated - Clean
Google Safe Browsing - clean - Clean
GreenSnow - clean - Clean
GreyNoise - unrated - Clean
Guardpot - unrated - Clean
Heimdal Security - clean - Clean
Hunt.io Intelligence - unrated - Clean
IPsum - clean - Clean
Juniper Networks - clean - Clean
K7AntiVirus - unrated - Clean
Kaspersky - clean - Clean
LevelBlue - clean - Clean
Lionic - clean - Clean
Lumu - unrated - Clean
Malwared - clean - Clean
MalwarePatrol - clean - Clean
MalwareURL - unrated - Clean
Mimecast - unrated - Clean
Netcraft - unrated - Clean
OpenPhish - clean - Clean
PhishFort - unrated - Clean
Phishtank - clean - Clean
PREBYTES - clean - Clean
PrecisionSec - unrated - Clean
Quick Heal - clean - Clean
Quttera - clean - Clean
Rising - clean - Clean
SafeToOpen - unrated - Clean
Sangfor - clean - Clean
Sansec eComscan - unrated - Clean
Scantitan - clean - Clean
SCUMWARE.org - clean - Clean
Seclookup - clean - Clean
Snort IP sample list - unrated - Clean
SOCRadar - unrated - Clean
Sophos - clean - Clean
StopForumSpam - clean - Clean
Sucuri SiteCheck - clean - Clean
ThreatHive - clean - Clean
URLhaus - clean - Clean
URLQuery - unrated - Clean
Viettel Threat Intelligence - clean - Clean
VIPRE - unrated - Clean
ViriBack - clean - Clean
VX Vault - clean - Clean
Webroot - clean - Clean
Xcitium Verdict Cloud - clean - Clean
Yandex Safebrowsing - clean - Clean
ZeroCERT - clean - Clean
ZeroFox - unrated - Clean

Security Scans

Browser Threat Feed

Not flagged on major threat lists

Checked against the browser threat feeds available to this scan — no hit.

What we observed

Loading saved screenshot

Preparing the saved page preview.

CAPTURED PAGE

pdftab.com

Visual analysis

Visual context from the captured page

The saved image was reviewed for deceptive controls, visual impersonation, fake urgency, and other scam interface patterns.

Context only

03 · Investigation Story

Investigation story

The behavior, reputation, and operator evidence that explains how this site may affect a visitor.

What the site claims
The captured page appears to offer a content service.
What we observed
The page content was captured and checked alongside 90 antivirus results.
What independent research found
2 external findings were saved and compared with the page evidence.
What remains unverified
2 of the 4 applicable core capabilities did not complete, so those gaps remain visible in the coverage ledger.

What kind of site and risk is this?

Threat category

No threat category confirmed

Service and business model

Content

Advertising

Observed behavior

No disruptive browser behavior saved

Evidence behind this classification

01Terms explicitly disclose that the extension changes search and new-tab settings.
02Domain has been registered for over ten years.
03the browser threat feed shows no threat warning.

Web research findings

Independent findings for pdftab.com, including public complaints, named review sources, registration records, and look-alike-domain evidence. A missing result is shown as unverified, never converted into a clean bill of health.

Business registration

No public record found

Could not match the site to a registered company — common for small sites.

Clone check

No clone detected

The completed research found no supported clone indicator.

Typosquat check

No look-alike match

The completed research found no supported look-alike match.

Web mentions

No scam reports found

The completed search returned no sourced scam reports or complaints.

No independently sourced scam reports or credibility records were found for pdftab.com. That is common for new or low-traffic sites and does not clear the site.

Reputation Sources

How this domain rates across independent threat-intelligence and blocklist providers.

Google Safe Browsing

Not listedCheck ↗

VirusTotal

ListedCheck ↗

AbuseIPDB

Not listedCheck ↗

Also verify:Spamhaus ↗DNSBL / SURBL ↗PhishTank ↗

04 · Domain & Infrastructure

Domain & infrastructure

Timeline · identity · encryption · redirects · hosting

The plumbing behind the site — who registered it, how it’s encrypted, where it’s hosted, and where it links out. A valid certificate or a calm server doesn’t mean the business is honest — scam sites pass these checks too. Use this to corroborate the verdict, not to overturn it.

Infrastructure map

How the saved page connected to the wider web.

Domainpdftab.com
Redirects topdftab.com
Hosted byAmazon.com, Inc.
Referencesapp.termly.io · cdn.pdftab-cdn.com

Domain Timeline

Aug 29, 2016
Domain registered
First appeared in WHOIS records — 10 years old today.
Sep 21, 2026
Saved security review — Reviewed — inconclusive
The completed checks from this saved scan are detailed above.

pdftab.com has operated for years with no threat signals in this review — a long, stable track record, though it is never a guarantee on its own.

Contact Verification

Saved contact details can help identify the operator. Their presence supports traceability; it does not prove the business is trustworthy.

What We Found

No clear contact details on the page

Emails on site's domainNone

Phone numbersNone

Postal addressNot listed

Linked social profiles0

Signal Summary

Several contact red flags

No direct contact email found on the captured page.

Domain & Encryption

Domain History

Age10 years old

RegistrarGoDaddy.com, LLC

RegisteredAug 29, 2016

ExpiresAug 29, 2027

Owner privacyUnknown

Encryption Certificate

StatusValid

ProtocolTLSv1.3

IssuerAmazon · Amazon RSA 2048 M01

ExpiresFeb 18, 2027 (150d)

Self-signedNo

Hosting & Technology

HostingAmazon.com, Inc.

Server locationUS

Web serverAmazonS3

Platform / CMSGatsby 2.32.13

Redirect Chain

Hops

Cross-domain

Lookalike

Punycode

1301http://pdftab.com/
2206https://pdftab.com/

Server Reputation

Abuse Intelligence

Confidence score0%

Reports on file0

ISPAmazon.com, Inc.

Usage typeContent Delivery Network

Referenced Domains

Outbound domains this page links to or loads resources from. Each links to its own security scan.

app.termly.io cdn.pdftab-cdn.com containers-test.mapsrch.com googletagmanager.com

05 · Evidence Ledger

Evidence ledger

Coverage, provenance, and source freshness remain separate so a missing check is never mistaken for a clean result.

Antiviruspartial
Browser threat feedcomplete
Page contentpartial
Analysiscomplete
Visual evidencecomplete

Completed analysis

The conclusion is supported by the evidence saved with this report.

Technical threat

suspicious

Malware, phishing, credential theft and hostile infrastructure.

Additional evidence review

Operator / customer risk

unknown

Complaints, withdrawals, business conduct and commercial traps.

No confirmed evidence in this dimension.

Source coverage and freshness

Status shows whether usable evidence was saved; finding shows what that evidence observed.

Source coverage
Source	Result	Completion	Finding	Freshness
Antivirus	4 of 90 engines flagged	Limited	Adverse	stale fallback · Sep 21, 2026
Browser protection	No browser threat-list match	Completed	No adverse finding	Not available
Page content	Page fetched · HTTP 200	Limited	No saved finding	Not available
Visual evidence	The saved page capture contained descriptive context only	Completed	No adverse finding	Not available
Independent research	2 independent findings were saved	Completed	No adverse finding	Not available

Antivirus: Result4 of 90 engines flagged; CompletionLimited; FindingAdverse; Freshnessstale fallback · Sep 21, 2026
Browser protection: ResultNo browser threat-list match; CompletionCompleted; FindingNo adverse finding; FreshnessNot available
Page content: ResultPage fetched · HTTP 200; CompletionLimited; FindingNo saved finding; FreshnessNot available
Visual evidence: ResultThe saved page capture contained descriptive context only; CompletionCompleted; FindingNo adverse finding; FreshnessNot available
Independent research: Result2 independent findings were saved; CompletionCompleted; FindingNo adverse finding; FreshnessNot available

06 · Your Next Move

Your next move

Verify before you trust

We couldn't gather enough signal for a confident verdict — tread carefully.

Find the company through independent channels
Search for the business on LinkedIn, an official registry (Companies House, OpenCorporates, SEC EDGAR), or via the brand's known social channels. If you can't trace a real entity, that itself is a red flag.
Never pay by crypto, gift card, or bank transfer
If the site forces an irreversible payment method, stop. Cards and PayPal give you chargeback protection — irreversible methods don't.
Ask the forum
Post the URL in the MalwareTips Scam Reports forum — experienced members often recognise patterns immediately.
Open

07 · Safety FAQ

Safety FAQ

Common questions, answered directly from the scan data above — so the answers reflect the saved verdict and evidence in this report.

Is pdftab.com a scam or is it safe?

pdftab.com has a Safety Score of 72/100 (Low Risk). The saved checks found no material threat, but the report did not meet every requirement for the highest Safe tier. Use normal caution and independently verify the operator before irreversible payments or unusually sensitive actions.

Is pdftab.com safe to use?

pdftab.com has a Safety Score of 72/100 (Low Risk). Analysis coverage is strong at 83%. Normal caution; verify sensitive actions.

Has pdftab.com been flagged by antivirus engines?

Yes. 4 of 90 antivirus and blocklist engines in our malware network flagged pdftab.com, 1 of them as outright malicious. Even a single detection from a reputable engine is a meaningful warning, and multiple detections rarely happen by accident.

Is pdftab.com on any phishing or malware blacklists?

No — pdftab.com is not currently on the major browser blocklist feeds that Chrome, Safari, Firefox, and Edge rely on. Note that blocklists can lag behind brand-new scam domains, so "not listed" is reassuring but not a guarantee on its own.

How old is the pdftab.com domain?

pdftab.com is 10.1 years old, registered on August 29, 2016 through GoDaddy.com, LLC. A multi-year registration history is one of the stronger signals against a scam, though it's never a guarantee on its own — established domains can still be misused.

Does pdftab.com have a valid SSL certificate?

Yes — pdftab.com presents a valid TLSv1.3 certificate issued by Amazon · Amazon RSA 2048 M01, valid for another 150 days. Important caveat: SSL only encrypts the connection between you and the site — it does not verify who runs it. Almost all scam sites now have valid SSL too, so a padlock alone never means "safe".

Where is pdftab.com hosted?

pdftab.com resolves to an IP operated by Amazon.com, Inc. in US (Content Delivery Network). Hosting location alone doesn't make a site good or bad — but hosting that doesn't match a brand's claimed country, or that sits on networks known for abuse, is one of the many signals we weigh alongside the verdict above.

How often is the pdftab.com report updated?

This report is a record of the scan run on September 21, 2026, and the verdict reflects that point in time. Scam sites change fast — they can go live, get flagged, or vanish within days — so if you believe something about pdftab.com has changed, MalwareTips staff can run a fresh scan that re-checks every signal from scratch and republishes an updated verdict.

08 · Final Verdict

Final verdict

The saved conclusion, decisive evidence, and practical action in one final view.

Verdict score

72/100

Low Risk

PDFTab offers a browser extension that alters search and new-tab settings; domain is old and clean on the browser threat feed but flagged by one AV engine.

Captured during this scan. Opening this report does not revisit the site.

Conclusion

Recommended actionReview the extension’s permissions and privacy policy before installing; the site itself is not flagged as malicious but the extension modifies core browser behavior.

Continue toCommunity

09 · Community

Community

First-hand experiences add human context after the scanner has reached its conclusion.

Is pdftab.com safe?

PDFTab offers a browser extension that alters search and new-tab settings; domain is old and clean on the browser threat feed but flagged by one AV engine.

Extension changes browser settings

Mixed technical reputation

Why the score is 72

What the site claims

What we observed

What independent research found

What remains unverified

Technical threat

Operator / customer risk

Verify before you trust

Find the company through independent channels

Never pay by crypto, gift card, or bank transfer

Ask the forum

PDFTab offers a browser extension that alters search and new-tab settings; domain is old and clean on the browser threat feed but flagged by one AV engine.

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