Website safety scanner

Is caltech.edu legit?

No major scam signal confirmed

caltech.edu shows several positive trust signals. We did not confirm a clear scam verdict, but the checks below still highlight what deserves attention.

Our score 100/100

Generally positive

Threat lists Clean Passed

SSL Valid Passed

Domain age 14778 days Established

Email protection Protected Passed

Popularity #3255 Ranked

Our verdict

Our automated scanner gives caltech.edu a trust score of 100/100. Stronger trust signals include No malicious detections reported, Configured free blacklist checks did not report a match, Abuse confidence score 0/100. The main warnings or unknowns are no major negative signal confirmed by the available checks.

This is an automated trust analysis. It checks technical signals, public threat feeds, domain records and website configuration. It cannot prove intent, but it helps you decide whether extra caution is needed before you log in, pay, download files or share personal information.

Recommended action The technical signals are mostly positive, but always review the website content, payment method and contact information before trusting it.

Website preview

Preview image generated from the scanned homepage. Visual appearance can change after the scan.

What to watch for

No data available

What this means for you

Browsing the homepage: review normally, but watch for browser warnings or forced downloads.
Entering passwords: only continue if the domain clearly matches the official website.
Payments: verify company details, refund policy and payment method first.
Downloads: avoid files when threat intelligence or reputation warnings are present.

Is caltech.edu safe to use?

caltech.edu currently has a moderate to positive trust profile in our automated analysis. The score combines blacklist results, SSL status, DNS configuration, WHOIS data, redirect behavior, security headers, domain heuristics, IP reputation and popularity signals.

A high score does not guarantee that a website is legitimate, and a low score does not prove criminal intent. The purpose of this report is to show the technical evidence so visitors can make a more informed decision.

Brand and domain checks

Brand-like pattern: No common pattern detected
Redirects elsewhere: No
Final URL: https://www.caltech.edu/
Punycode detected: No

Contact and company signals

About page: Yes
Contact page: Yes
Privacy policy: Yes
Terms page: Yes
Refund policy: No

Payment risk indicators

Risk terms found: No data available
External links: 24
Recommendation: The technical signals are mostly positive, but always review the website content, payment method and contact information before trusting it.

Trust signals found

VirusTotal clean result No malicious detections reported
No phishing list match found Configured free blacklist checks did not report a match
AbuseIPDB clean IP score Abuse confidence score 0/100
Valid SSL certificate Certificate valid with 187 days remaining
Established domain age 14778 days old
MX records present Mail exchange records found
SPF record present SPF policy found
DMARC record present DMARC policy found
HTTPS reachable Website responds over HTTPS
Good security headers content-security-policy, x-content-type-options, x-frame-options, referrer-policy, permissions-policy
Company information pages found about page, contact page, privacy policy, terms page
Recognized website popularity Tranco rank #3255

Website popularity

75 Popularity score

06-23

Rank source: Tranco
Tranco rank: 3255
Estimated visitors: 500K-5M monthly visits

Additional threat intelligence

AlienVault OTX pulses: 0
OTX reputation: No data available
AbuseIPDB score: 0/100
AbuseIPDB reports: 0
IP owner / ISP: Amazon Technologies Inc.

VirusTotal details

Malicious detections: 0
Suspicious detections: 0
Harmless engines: 58
Undetected engines: 33
Reputation: 0
Community votes: harmless: 0, malicious: 0
Categories: No data available

No VirusTotal malicious or suspicious engine-level detections are available for this scan.

View all stored VirusTotal output

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            "method": "blacklist",
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            "category": "harmless",
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            "method": "blacklist",
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            "category": "undetected",
            "result": "unrated"
        },
        "Snort IP sample list": {
            "method": "blacklist",
            "engine_name": "Snort IP sample list",
            "category": "undetected",
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        "CMC Threat Intelligence": {
            "method": "blacklist",
            "engine_name": "CMC Threat Intelligence",
            "category": "harmless",
            "result": "clean"
        },
        "CTX AI": {
            "method": "blacklist",
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            "category": "harmless",
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        },
        "Cyan": {
            "method": "blacklist",
            "engine_name": "Cyan",
            "category": "undetected",
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            "method": "blacklist",
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        },
        "CyRadar": {
            "method": "blacklist",
            "engine_name": "CyRadar",
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        },
        "DNS8": {
            "method": "blacklist",
            "engine_name": "DNS8",
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        "Dr.Web": {
            "method": "blacklist",
            "engine_name": "Dr.Web",
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        },
        "Ermes": {
            "method": "blacklist",
            "engine_name": "Ermes",
            "category": "undetected",
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        "ESET": {
            "method": "blacklist",
            "engine_name": "ESET",
            "category": "harmless",
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        },
        "ESTsecurity": {
            "method": "blacklist",
            "engine_name": "ESTsecurity",
            "category": "harmless",
            "result": "clean"
        },
        "EmergingThreats": {
            "method": "blacklist",
            "engine_name": "EmergingThreats",
            "category": "harmless",
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        },
        "Emsisoft": {
            "method": "blacklist",
            "engine_name": "Emsisoft",
            "category": "harmless",
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        },
        "Forcepoint ThreatSeeker": {
            "method": "blacklist",
            "engine_name": "Forcepoint ThreatSeeker",
            "category": "harmless",
            "result": "clean"
        },
        "Fortinet": {
            "method": "blacklist",
            "engine_name": "Fortinet",
            "category": "harmless",
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        },
        "G-Data": {
            "method": "blacklist",
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        "GCP Abuse Intelligence": {
            "method": "blacklist",
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            "category": "undetected",
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        "Google Safebrowsing": {
            "method": "blacklist",
            "engine_name": "Google Safebrowsing",
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        },
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            "method": "blacklist",
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        },
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            "method": "blacklist",
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            "method": "blacklist",
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            "method": "blacklist",
            "engine_name": "Guardpot",
            "category": "undetected",
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            "method": "blacklist",
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        },
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            "method": "blacklist",
            "engine_name": "Hunt.io Intelligence",
            "category": "undetected",
            "result": "unrated"
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            "method": "blacklist",
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        },
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            "method": "blacklist",
            "engine_name": "Juniper Networks",
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        },
        "Kaspersky": {
            "method": "blacklist",
            "engine_name": "Kaspersky",
            "category": "harmless",
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        },
        "LevelBlue": {
            "method": "blacklist",
            "engine_name": "LevelBlue",
            "category": "harmless",
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        },
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            "method": "blacklist",
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            "method": "blacklist",
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            "result": "clean"
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            "result": "clean"
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            "result": "clean"
        },
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            "method": "blacklist",
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            "category": "harmless",
            "result": "clean"
        },
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            "method": "blacklist",
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            "category": "harmless",
            "result": "clean"
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            "result": "clean"
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            "result": "clean"
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            "result": "unrated"
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            "result": "unrated"
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        },
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            "ttl": 21600,
            "value": "ns0090.secondary.cloudflare.com"
        },
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    "categories": [],
    "last_dns_records_date": 1782192547,
    "last_update_date": 1769731200,
    "last_analysis_stats": {
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        "suspicious": 0,
        "undetected": 33,
        "harmless": 58,
        "timeout": 0
    },
    "last_https_certificate": {
        "cert_signature": {
            "signature_algorithm": "sha256RSA",
            "signature": "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"
        },
        "extensions": {
            "authority_key_identifier": {
                "keyid": "da22373fe5d374dad9793ed1726dd5934b2037af"
            },
            "subject_key_identifier": "1e0a1ad2afdbef0a3c7f60120db691d3b99e8222",
            "key_usage": [
                "digitalSignature",
                "keyEncipherment"
            ],
            "CA": false,
            "extended_key_usage": [
                "serverAuth"
            ],
            "certificate_policies": [
                "2.23.140.1.2.2"
            ],
            "crl_distribution_points": [
                "http://crl.sectigo.com/InCommonRSAOVSSLCA3.crl"
            ],
            "ca_information_access": {
                "CA Issuers": "http://crt.sectigo.com/InCommonRSAOVSSLCA3.crt",
                "OCSP": "http://ocsp.sectigo.com"
            },
            "1.3.6.1.4.1.11129.2.4.2": "048201720170007700d76d7d10d1a7f577c2c7e95fd700bff982c9335a65e1d0",
            "subject_alternative_name": [
                "caltech.edu",
                "admissions.caltech.edu",
                "alumni.caltech.edu",
                "aphms.caltech.edu",
                "bbe.caltech.edu",
                "biology.caltech.edu",
                "bond.caltech.edu",
                "brinsonhub.caltech.edu",
                "caltech.info",
                "caltech.net",
                "caltech.org",
                "cd3.caltech.edu",
                "cms.caltech.edu",
                "cns.caltech.edu",
                "csa.caltech.edu",
                "eands.caltech.edu",
                "eas.caltech.edu",
                "ee.caltech.edu",
                "einstein.caltech.edu",
                "finaid.caltech.edu",
                "galcit.caltech.edu",
                "gps.caltech.edu",
                "hpc.caltech.edu",
                "hss.caltech.edu",
                "imss.caltech.edu",
                "jobs.caltech.edu",
                "kiss.caltech.edu",
                "lncrna.caltech.edu",
                "mayo.caltech.edu",
                "mems.caltech.edu",
                "ogc.caltech.edu",
                "pma.caltech.edu",
                "quarantine.caltech.edu",
                "registermydevice.caltech.edu",
                "spamtrap.caltech.edu",
                "srl.caltech.edu",
                "studaff.caltech.edu",
                "techer.caltech.edu",
                "theory.caltech.edu",
                "vis.caltech.edu",
                "vision.caltech.edu",
                "www.csa.caltech.edu",
                "www.srl.caltech.edu",
                "www.techer.caltech.edu"
            ]
        },
        "validity": {
            "not_after": "2026-12-27 23:59:59",
            "not_before": "2026-06-12 00:00:00"
        },
        "size": 2517,
        "version": "V3",
        "public_key": {
            "algorithm": "RSA",
            "rsa": {
                "modulus": "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",
                "exponent": "10001",
                "key_size": 2048
            }
        },
        "thumbprint_sha256": "31f2c6206ea7eab4863ad75947182926067885e21b12cd37a99125c05148f17c",
        "thumbprint": "4f87a1172f9180c58198699705ea69f6f96ef8cf",
        "serial_number": "c76f8bc4f7cb03d077e84798e38dd109",
        "issuer": {
            "C": "US",
            "O": "InCommon, LLC",
            "CN": "InCommon RSA OV SSL CA 3"
        },
        "subject": {
            "C": "US",
            "ST": "California",
            "O": "California Institute of Technology",
            "CN": "caltech.edu"
        }
    },
    "popularity_ranks": {
        "Majestic": {
            "rank": 915,
            "timestamp": 1782139096
        },
        "Statvoo": {
            "timestamp": 1684169882,
            "rank": 17775
        },
        "Alexa": {
            "timestamp": 1684083481,
            "rank": 17775
        },
        "Cisco Umbrella": {
            "rank": 61511,
            "timestamp": 1782139095
        },
        "Quantcast": {
            "timestamp": 1585755370,
            "rank": 5754
        },
        "Cloudflare Radar": {
            "rank": 10000,
            "timestamp": 1782139104
        }
    },
    "reputation": 0,
    "last_modification_date": 1782192946,
    "total_votes": {
        "harmless": 0,
        "malicious": 0
    }
}

How this compares to trusted websites

Trusted websites usually use a valid SSL certificate and keep it renewed.
They often have clear contact details, company information, privacy terms and refund policies.
They rarely appear on malware, phishing or abuse intelligence lists.
They use stable DNS, email authentication and predictable redirects.

Sources checked

VirusTotal Google Safe Browsing URLHaus OpenPhish PhishTank AlienVault OTX AbuseIPDB WHOIS DNS SSL Security headers Tranco

Technical safety checks

These checks explain the underlying signals behind the verdict. They are useful when you want to know whether a website has a stable domain history, a valid SSL certificate, normal DNS records and expected security configuration.

Domain information

Domain: caltech.edu
Registrar
Domain age: 14778 days
Created: 1986-01-06T00:00:00+00:00
WHOIS privacy: No

SSL details

Valid SSL: Yes
Issuer: InCommon, LLC
Subject: caltech.edu
Expires: 2026-12-27T23:59:59+00:00
Days remaining: 187

HTTP checks

HTTPS available: Yes
HTTP available: No
Status code: 200
Final URL: https://www.caltech.edu/
Page title: Home - www.caltech.edu

DNS records

A records: 52.26.125.194
MX records: 10 mx1.caltech.iphmx.com, 10 mx2.caltech.iphmx.com
Nameservers: ns0090.secondary.cloudflare.com, ns0239.secondary.cloudflare.com
SPF record: v=spf1 ip4:131.215.0.0/16 ip4:134.4.0.0/16 ip4:192.100.16.0/24 ip4:198.129.208.0/23 ip4:208.69.128.0/22 ip4:199.188.184.0/22 ip4:198.202.125.128/25 ip4:74.122.104.0/22 ip4:72.10.184.102 ip4:72.10.184.103 ip4:72.10.182.15 ip4:72.10.182.16 include:spf.protection.outlook.com include:sendgrid.net include:mktomail.com include:spf.dynect.net include:cust-spf.cashnet.com include:amazonses.com include:_spf.createsend.com include:_spf01.mykronos.com include:_s0.caltech.edu ?all
DMARC record: v=DMARC1; p=none; rua=mailto:6e39dba0@mxtoolbox.dmarc-report.com,mailto:caltech@us.cp-dmarc.com; ruf=mailto:6e39dba0@forensics.dmarc-report.com,mailto:caltech@us.cp-dmarc.com; fo=1

Security headers

Present: content-security-policy, x-content-type-options, x-frame-options, referrer-policy, permissions-policy
Missing: strict-transport-security

Blacklist overview

VirusTotal malicious: 0
Google Safe Browsing unsafe: No
URLHaus listed: No data available
OpenPhish listed: No
PhishTank listed: No data available

Technical analysis

IP address: 52.26.125.194
ASN / organization: AS16509 Amazon.com, Inc.
Hosting provider: AS16509 Amazon.com, Inc.
Location: Boardman, Oregon, US
High entropy score: 2.522
Suspicious TLD: No
Suspicious keywords: No data available

Redirect chain

https://caltech.edu/

caltech.edu safety FAQ

Is caltech.edu a scam?

This automated report cannot make a legal accusation. It gives caltech.edu a trust score of 100/100 based on the security and reputation signals available at scan time. Review the warnings, threat detections and technical checks above before using the site.

Why did caltech.edu get this trust score?

The score is weighted from multiple signals, including threat-list matches, domain age, SSL status, redirects, DNS records, SPF/DMARC, security headers, suspicious keywords, IP reputation and popularity data.

Should I enter personal or payment information?

The technical signals are mostly positive, but always review the website content, payment method and contact information before trusting it.

How often is this analysis updated?

The report is generated from stored scan data. When the automation script refreshes the domain, the page updates the score, threat intelligence, technical checks and popularity history.