Warning signs detected
SendGrid tracking subdomain abused by phishers, currently showing 404 with no active threat on the page.
Is u715846.ct.sendgrid.net legit or a scam?
SendGrid tracking subdomain abused by phishers, currently showing 404 with no active threat on the page.
This is a legitimate SendGrid tracking subdomain that attackers frequently abuse to deliver phishing links. The page itself shows a 404 error and no malicious code was detected, but the domain's reputation is tainted by widespread misuse.
Score breakdown
See the live page ↓These checks passed — but they don't clear the site. A clean antivirus result, valid SSL, and a calm server only mean it isn't hosting malware; they say nothing about whether the business is real. This verdict is based on the site's conduct and content, not a malware detection.
Analysis Summary
Website Preview
Automated page render — captured in a safe sandbox. What an ordinary visitor would see when loading the site. Marker positions are approximate. See full visual analysis →
Visual analysis
We capture a fresh screenshot of the live page and ask a vision model to look for scam visual patterns — fake trust badges, countdown timers, overlay pop-ups, and visual clones of legitimate brands.
Visual red flags detected in the screenshot
The page displays a standard nginx 404 Not Found error, indicating that the requested content is missing or the site is non-functional.
What our vision model saw
2 signalsPage renders a 404 error
Page appears parked or non-functional
Intelligence
The domain u715846.ct.sendgrid.net belongs to Twilio SendGrid, a legitimate email delivery service with a 17-year history. No antivirus engines flagged the URL and the page returns a standard nginx 404 error. Security researchers at Ironscales, Netcraft, and Cofense have documented attackers abusing SendGrid tracking links to bypass email filters and deliver phishing campaigns. The infrastructure itself is not malicious, but its trusted reputation makes it a common vehicle for credential-harvesting attacks. The combination of legitimate ownership and documented abuse patterns places this in the suspicious category.
Web Research Findings
Independent findings for u715846.ct.sendgrid.net, 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.
- The domain 'ct.sendgrid.net' is a legitimate infrastructure component used by Twilio SendGrid for email click-tracking and analytics.
- Threat actors frequently abuse this legitimate infrastructure to hide malicious redirect URLs, allowing phishing links to bypass security filters that trust the SendGrid domain.
- Phishing campaigns often use these links to harvest credentials by redirecting users to fake login portals that mimic legitimate services.
- Security researchers note that these links are difficult to analyze because the final destination is often hidden behind an encoded parameter and may use geo-fencing to evade detection.
- Legitimate organizations using SendGrid for email marketing may experience false-positive blocks from security software (like Microsoft Defender) because of the widespread abuse of these tracking links by attackers.
- Ironscalesopen
"Attackers use it to launder malicious URLs through infrastructure that Secure Email Gateways (SEGs) trust by default. The distinction matters."
- Netcraftopen
"Criminals abused SendGrid's services to launch a phishing campaign impersonating SendGrid itself... The phishing site also verifies the two-factor authentication code entered by the victim."
- Cofenseopen
"The campaign exploits the trusted reputation of SendGrid... By impersonating SendGrid's platform, attackers can deliver phishing emails that appear authentic and bypass common email security gateways."
SendGrid is a legitimate, publicly known email delivery service owned by Twilio.
Ironscales reports that attackers use SendGrid infrastructure to launder malicious URLs through trusted email gateways. Netcraft documented a phishing campaign where criminals impersonated SendGrid itself to harvest credentials including two-factor authentication codes. Cofense notes that the campaign exploits SendGrid's trusted reputation to bypass common email security gateways and deliver phishing emails that appear authentic.
Domain Timeline
- Apr 20, 2009Domain registered
First appeared in WHOIS records — 17 years old today.
- Jul 22, 2026Latest security review — Flagged as suspicious
This scan re-ran every check; the current findings are detailed above.
u715846.ct.sendgrid.net is an established domain now carrying threat signals. An older domain that starts tripping security checks is a classic pattern for an asset that was sold, repurposed, or compromised — the age alone is not reassurance.
Threat Detection
Antivirus Engines
Security Scans
Checked against the major public blocklists used by browsers and security tools — no hits.
Reputation Sources
How this domain rates across independent threat-intelligence and blocklist providers.
Technical Details
domain · encryption · redirects · server reputation · referencedThe 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.
Domain & Encryption
Server Reputation
What to do
Proceed with caution
Our automated review flagged enough risk that you should treat this site as unverified.
- Treat u715846.ct.sendgrid.net as unverified
Do not enter credentials or send money until you have independently verified the business.
- Verify the business through independent channels
Check the company's social profiles, registry records, and search for recent news or reviews that are not hosted on the site itself.
- Never use irreversible payment methods
Crypto, gift cards, wire transfers, and cash apps offer zero buyer protection. Use a credit card or PayPal if you must pay.
- OpenShare your experience
If you have additional context, drop a comment below or post on the MalwareTips forum.
Final Verdict
This is a legitimate SendGrid tracking subdomain that attackers frequently abuse to deliver phishing links. The page itself shows a 404 error and no malicious code was detected, but the domain's reputation is tainted by widespread misuse.
Safety FAQ
Common questions, answered directly from the scan data above — so the answers always reflect the latest verdict on this page.
- u715846.ct.sendgrid.net shows strong warning signs of being a scam site — avoid interacting with it. Our review tagged it for phishing. The domain is 17.3 years old through MarkMonitor Inc.. It may not be an outright scam, but the risk is high enough that you should verify it independently before trusting it with money or data.
- Proceed with caution — u715846.ct.sendgrid.net scores 59/100 on our trust scale. We found enough warning signals to recommend verifying it through independent channels before entering credentials or money.
- If you've already paid or handed over details on u715846.ct.sendgrid.net, act quickly. 1) Contact your bank or card issuer immediately and ask to dispute the charge or open a chargeback — the sooner you act, the better your odds. 2) Report the site to the U.S. FTC at reportfraud.ftc.gov or the FBI's IC3 at ic3.gov, and in the UK to Action Fraud at actionfraud.police.uk. 3) If you entered a password, change it on u715846.ct.sendgrid.net and anywhere you reused it, and turn on two-factor authentication. 4) Watch your bank and email for follow-up fraud, and keep screenshots as evidence.
- Often yes, if you act fast. Payments made by credit or debit card can frequently be reversed through a chargeback or dispute — contact your bank right away and explain it was a fraudulent site. Bank transfers and gift-card or voucher payments are much harder to recover, but you should still report them to your bank and to the FTC (reportfraud.ftc.gov) or Action Fraud (actionfraud.police.uk). Avoid any "refund" or "recovery" service that contacts you first — it's usually a follow-up scam.
- Just viewing a scam page is usually low-risk on an up-to-date browser — the real danger is what it asks you to DO (enter details, download a file, send money). If you downloaded anything, run a full antivirus scan and treat the file as untrusted. If you entered a password or card number, change the password everywhere you reused it and contact your bank.
- You can report u715846.ct.sendgrid.net through several official channels: the U.S. FTC at reportfraud.ftc.gov, the FBI's Internet Crime Complaint Center (IC3) at ic3.gov, and — in the UK — Action Fraud at actionfraud.police.uk. You can also flag it to Google Safe Browsing (safebrowsing.google.com/safebrowsing/report_phish) so other browsers warn about it, and report it to the company being impersonated if there is one. Reporting helps get scam sites taken down faster.
- Modern scams are built to look convincing. A valid SSL padlock, a polished template, stock photos, fake reviews, and a trust badge can all be added in minutes and prove nothing about who runs the site. Scammers buy cheap domains, clone real designs, and copy legal pages wholesale. That's exactly why an automated review that checks the domain's age, hosting, blacklists, and behaviour — rather than just how the page looks — is more reliable than a first impression.
- No — all 92 antivirus and blocklist engines in our malware network currently report u715846.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.
- No — u715846.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.
- u715846.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.
- Yes — u715846.ct.sendgrid.net presents a valid TLSv1.2 certificate issued by GoDaddy.com, Inc. · Go Daddy Secure Certificate Authority - G2, valid for another 144 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".
- u715846.ct.sendgrid.net resolves to an IP operated by Amazon Data Services Northern Virginia 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.
User reviews & comments(0)
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