MalwareTips

Is u39379062.ct.sendgrid.net safe?

http://u39379062.ct.sendgrid.net/

92/100
Safe

Analysis coverage: strong · 3 of 5 core capabilities

Verdict

SendGrid tracking subdomain returns 404 with zero malicious detections

http://u39379062.ct.sendgrid.net/ is a SendGrid click-tracking endpoint used in marketing emails. It serves a 404 page with no content, no redirects, and clean results from VirusTotal (0/92 malicious) and Google Safe Browsing.

Read the full analysis
No antivirus detections across 92 engines
Safe to ignore or delete the email link. No action required; the endpoint poses no risk.
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01 · Investigation Brief

Investigation Brief

http://u39379062.ct.sendgrid.net/ is a SendGrid click-tracking endpoint used in marketing emails. It serves a 404 page with no content, no redirects, and clean results from VirusTotal (0/92 malicious) and Google Safe Browsing.

What the site appears to do

This is not a standalone website but a dedicated SendGrid (Twilio) subdomain for email link tracking and click measurement in commercial campaigns.

Decisive evidence

Page returns HTTP 404 with empty body and no external domains or scripts. VirusTotal reports 0 malicious and 0 suspicious detections across 92 engines. Google Safe Browsing flags no threats. Domain registered 2009, IP on Amazon with abuse score 0.

Practical user impact

Clicking produces only a harmless 404. No data collection, downloads, or redirects occur. The link is likely an expired campaign tracker.

Why the score is 92

The saved analysis does not include enough completed checks for a Safe rating. Coverage remains separate so missing sources cannot be mistaken for clean results.

02 · Security Evidence

Security evidence

Antivirus Engines

Fresh result

No detections across 92 engines

No antivirus engine in this saved scan raised an adverse result. This is one signal, not a guarantee.

Malicious
0
Suspicious
0
Total
92
All 92 engine results
  • 0xSI_f33d - unrated - Clean
  • Abusix - clean - Clean
  • Acronis - clean - Clean
  • ADMINUSLabs - clean - Clean
  • AILabs (MONITORAPP) - clean - Clean
  • AlienVault - clean - Clean
  • alphaMountain.ai - clean - Clean
  • AlphaSOC - clean - 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
  • Chong Lua Dao - clean - Clean
  • CINS Army - clean - Clean
  • Cluster25 - unrated - 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
  • Forcepoint ThreatSeeker - 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
  • Gridinsoft - 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 - unrated - 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
  • Phishing Database - clean - 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.

03 · 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.

Domainu39379062.ct.sendgrid.net
Redirects tou39379062.ct.sendgrid.net
Hosted byAmazon Technologies Inc.

Domain Timeline

  1. Apr 20, 2009
    Domain registered

    First appeared in WHOIS records — 17 years old today.

  2. Jul 30, 2026
    Saved security review — Reviewed as safe

    This saved scan found no active threat signals in the checks it completed.

u39379062.ct.sendgrid.net 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.

Domain & Encryption

Domain History
Age17 years old
RegistrarMarkMonitor Inc.
RegisteredApr 20, 2009
ExpiresApr 20, 2027
Owner privacyUnknown
Encryption Certificate
StatusInvalid
Protocolnone
IssuerNone
ExpiresInvalid Date (0d)
Self-signedNo
Hosting & Technology
HostingAmazon Technologies Inc.
Server locationUS

Server Reputation

Abuse Intelligence
Confidence score0%
Reports on file1
ISPAmazon Technologies Inc.
Usage typeData Center/Web Hosting/Transit

04 · Evidence Ledger

Evidence ledger

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

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

AntiviruscompleteBrowser threat feedcompletePage contentpartialAnalysiscompleteVisual evidenceunavailable

Technical threat

Malware, phishing, credential theft and hostile infrastructure.

unknown

No confirmed evidence in this dimension.

Operator / customer risk

Complaints, withdrawals, business conduct and commercial traps.

unknown

No confirmed evidence in this dimension.

Source coverage and freshness

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

Antivirus
Result: 0 of 92 engines flagged
Completed
No adverse finding
Freshness: fresh · Jul 30, 2026
Browser protection
Result: No browser threat-list match
Completed
No adverse finding
Page content
Result: Page content was not available for semantic review
Limited
No saved finding
Visual evidence
Result: No usable visual evidence was saved
Unavailable
No saved finding
Independent research
Result: Independent research was not available for this report
Unavailable
No saved finding

05 · Your Next Move

Your next move

Still, stay alert

No major threat indicators — but a clean scan does not guarantee every page is safe, and phishing emails routinely spoof real domains.

  • Double-check the exact URL in your address bar

    Confirm you are actually on u39379062.ct.sendgrid.net and not a lookalike like u-39379062.ct.sendgrid.net or an IDN homoglyph.

  • Use a password manager

    Password managers only auto-fill on the exact domain they were saved for — they refuse to fill lookalike domains, which is the single best phishing defence.

  • Discuss this site on the forum

    If you have first-hand experience with this site — good or bad — share it with the MalwareTips community.

    Open
Final verdictLevel 1 of 5
92/100 safety

Safe

SendGrid tracking subdomain returns 404 with zero malicious detections

http://u39379062.ct.sendgrid.net/ is a SendGrid click-tracking endpoint used in marketing emails. It serves a 404 page with no content, no redirects, and clean results from VirusTotal (0/92 malicious) and Google Safe Browsing.

  1. 01

    The saved analysis does not include enough completed checks for a Safe rating.

  2. 02

    0 malicious detections across 92 engines

  3. 03

    No threat warning from Google Safe Browsing

Safe to ignore or delete the email link. No action required; the endpoint poses no risk.
Evidence balance7 signals
Positive
3
Limited
3
Risk
1
Analysis coverage
89%
strong coverage
Core capabilities
3/5
completed checks
Source coverage
2/5
sources complete
Evidence checks
0/7
completed checks flagged
Technical threatNot confirmed50/100 risk
Operator / customer riskNot confirmed50/100 risk
Safety range

Saved evidence only. Missing checks are never treated as a clean result.

Scan another URL

06 · Community

Community

0 community contributions

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Community reviews never change the scanner verdict.

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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 u39379062.ct.sendgrid.net legit and safe?
Our automated security review found no threat indicators on u39379062.ct.sendgrid.net, so it appears legitimate. All 92 antivirus engines we queried report it clean, and the domain is 17.3 years old, registered on April 20, 2009 — established domains are far less likely to be scams. Even so, always double-check the exact address in your browser, because phishing emails routinely spoof real, trusted domains like this one.
Is u39379062.ct.sendgrid.net safe to use?
u39379062.ct.sendgrid.net has a Safety Score of 92/100 (Safe). Fresh core checks and semantic analysis found no material threat at scan time. Treat unexpected login or payment requests with normal caution.
Could a legitimate site like u39379062.ct.sendgrid.net still be used in a scam?
Yes — and this is worth understanding. Even trustworthy domains get spoofed in phishing emails (a fake message that only looks like it's from u39379062.ct.sendgrid.net), and legitimate sites are occasionally compromised on specific pages. A clean verdict means the site itself checks out today; it does not mean every email or link claiming to be from u39379062.ct.sendgrid.net is genuine. Always reach the site by typing the address yourself rather than clicking links in unexpected messages.
Has u39379062.ct.sendgrid.net been flagged by antivirus engines?
No — all 92 antivirus and blocklist engines in our malware network currently report u39379062.ct.sendgrid.net as clean. That's a good sign, though antivirus coverage is only one of the many signals we weigh, and brand-new scam sites can appear clean before vendors catch up.
Is u39379062.ct.sendgrid.net on any phishing or malware blacklists?
No — u39379062.ct.sendgrid.net 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 u39379062.ct.sendgrid.net domain?
u39379062.ct.sendgrid.net is 17.3 years old, registered on April 20, 2009 through MarkMonitor Inc.. 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 u39379062.ct.sendgrid.net have a valid SSL certificate?
No — u39379062.ct.sendgrid.net has an invalid or broken SSL certificate, so browsers will show a security warning. Combined with the other signals, we recommend avoiding it.
Where is u39379062.ct.sendgrid.net hosted?
u39379062.ct.sendgrid.net resolves to an IP operated by Amazon Technologies Inc. in US (Data Center/Web Hosting/Transit). 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 u39379062.ct.sendgrid.net report updated?
This report is a record of the scan run on July 30, 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 u39379062.ct.sendgrid.net has changed, MalwareTips staff can run a fresh scan that re-checks every signal from scratch and republishes an updated verdict.