Is ultradns.com safe?

http://ultradns.com/

SafeStatus

Coveragestrong2 of 4 applicable core capabilities

Verdict

Legitimate enterprise DNS service with temporary 503 error

ultradns.com is the long-standing domain for UltraDNS, a managed authoritative DNS platform now operated by DigiCert after its 2024 acquisition of Vercara. The site currently returns a 503 Service Unavailable error, but the browser threat feed reports no malicious activity and the domain has been registered since 1998.

The domain represents a legitimate enterprise DNS provider. The 503 error appears to be a temporary service issue rather than a security concern. No action is required beyond monitoring the service status if you are an existing customer.

Read full analysis

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Saved site captureCaptured safely during this scan No antivirus detections across 92 engines

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

Domain history and current status

The registrable domain is 10269 days old, indicating a long-established infrastructure service rather than a newly created site.

the browser threat feed returned no threat warning for the domain.

Technical observations

The landing page currently returns a 503 Service Unavailable error, consistent with server-side configuration or maintenance issues at the Vercara/DigiCert infrastructure level.

Operator context

UltraDNS is a managed DNS service originally operated by Neustar, later Vercara, and acquired by DigiCert in August 2024. The domain redirects to Vercara's product pages for enterprise-grade managed DNS services.

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

Collected signals and independent provider data for this URL.

Antivirus Engines

0/ 92

No detections

Saved result - stale

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 - unrated - Clean
Antiy-AVL - clean - Clean
ArcSight Threat Intelligence - unrated - Clean
AutoShun - unrated - Clean
Bfore.Ai PreCrime - unrated - Clean
BitDefender - clean - Clean
Bkav - clean - Clean
BlockList - clean - Clean
Blueliv - clean - Clean
Certego - clean - Clean
ChainPatrol - unrated - Clean
Chong Lua Dao - unrated - Clean
CINS Army - clean - Clean
Cluster25 - unrated - Clean
CRDF - clean - Clean
Criminal IP - clean - 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 - 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
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 - clean - 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

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CAPTURED PAGE

ultradns.com

Visual analysis

Visual context from the captured page

Error 30. The proxy failed to connect to the web server

Context only

What the captured page showed

1 observation

01
Error 30. The proxy failed to connect to the web server

03 · Investigation Story

Investigation story

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

What the site claims
Independent evidence classifies the site as saas, but the page's own claim could not be captured.
What we observed
The page itself could not be fully inspected, so the report relies on the other saved checks.
What independent research found
The search completed without a material external warning or corroborating report.
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

Saas

Subscription

Observed behavior

No disruptive browser behavior saved

Evidence behind this classification

01Domain registered for 10269 days
02the browser threat feed reports no threats

Web research findings

Independent findings for ultradns.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 ultradns.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

Not 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.

Domainultradns.com
Redirects towww.vercara.com
Hosted byArbor Cloud

Domain Timeline

Jun 29, 1998
Domain registered
First appeared in WHOIS records — 28 years old today.
Aug 11, 2026
Saved security review — Reviewed as safe
This saved scan found no active threat signals in the checks it completed.

ultradns.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.

Domain & Encryption

Domain History

Age28 years old

RegistrarCSC Corporate Domains, Inc.

RegisteredJun 29, 1998

ExpiresJun 28, 2027

Owner privacyUnknown

Encryption Certificate

StatusValid

ProtocolTLSv1.3

IssuerDigiCert, Inc. · DigiCert G5 TLS RSA4096 SHA384 2021 CA1

ExpiresSep 13, 2026 (33d)

Self-signedNo

Hosting & Technology

HostingArbor Cloud

Server locationUS

PopularityTop 100k worldwide

Redirect Chain

Hops

Cross-domain

Yes

Lookalike

Punycode

1302http://ultradns.com/
2301https://vercara.com/authoritative-dnscross-domain
3503https://www.vercara.com/authoritative-dnscross-domain

Server Reputation

Abuse Intelligence

Confidence score0%

Reports on file0

ISPArbor Cloud

Usage typeFixed Line ISP

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

unknown

Malware, phishing, credential theft and hostile infrastructure.

No confirmed evidence in this dimension.

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	0 of 92 engines flagged	Limited	No saved finding	stale fallback · Aug 11, 2026
Browser protection	No browser threat-list match	Completed	No adverse finding	Not available
Page content	Page content was not available for semantic review	Limited	No saved finding	Not available
Visual evidence	1 visible observation saved with the page capture	Completed	No adverse finding	Not available
Independent research	The search completed without a material external finding	Completed	No adverse finding	Not available

Antivirus: Result0 of 92 engines flagged; CompletionLimited; FindingNo saved finding; Freshnessstale fallback · Aug 11, 2026
Browser protection: ResultNo browser threat-list match; CompletionCompleted; FindingNo adverse finding; FreshnessNot available
Page content: ResultPage content was not available for semantic review; CompletionLimited; FindingNo saved finding; FreshnessNot available
Visual evidence: Result1 visible observation saved with the page capture; CompletionCompleted; FindingNo adverse finding; FreshnessNot available
Independent research: ResultThe search completed without a material external finding; CompletionCompleted; FindingNo adverse finding; FreshnessNot available

06 · 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 ultradns.com and not a lookalike like u-ltradns.com 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

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 ultradns.com legit and safe?

Our automated security review found no threat indicators on ultradns.com, so it appears legitimate. All 92 antivirus engines we queried report it clean, it ranks among the world's most-visited sites, and the domain is 28.1 years old, registered on June 29, 1998 — 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 ultradns.com safe to use?

ultradns.com 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 ultradns.com 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 ultradns.com), 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 ultradns.com is genuine. Always reach the site by typing the address yourself rather than clicking links in unexpected messages.

Has ultradns.com been flagged by antivirus engines?

No — all 92 antivirus and blocklist engines in our malware network currently report ultradns.com 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 ultradns.com on any phishing or malware blacklists?

No — ultradns.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 ultradns.com domain?

ultradns.com is 28.1 years old, registered on June 29, 1998 through CSC Corporate Domains, 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 ultradns.com have a valid SSL certificate?

Yes — ultradns.com presents a valid TLSv1.3 certificate issued by DigiCert, Inc. · DigiCert G5 TLS RSA4096 SHA384 2021 CA1, valid for another 33 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 ultradns.com hosted?

ultradns.com resolves to an IP operated by Arbor Cloud in US (Fixed Line ISP). 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.

Is ultradns.com a well-known website?

Yes — ultradns.com ranks in the global top 100,000 most-visited sites, which means it has substantial real-world traffic. Genuine popularity doesn't automatically make a site safe, but throwaway scam domains almost never reach this level of traffic, so it's a meaningful point in the site's favour.

How often is the ultradns.com report updated?

This report is a record of the scan run on August 11, 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 ultradns.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

92/100

Safe

Legitimate enterprise DNS service with temporary 503 error

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

Conclusion

Recommended actionThe domain represents a legitimate enterprise DNS provider. The 503 error appears to be a temporary service issue rather than a security concern. No action is required beyond monitoring the service status if you are an existing customer.

Continue toCommunity

09 · Community

Community

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

Is ultradns.com safe?

Legitimate enterprise DNS service with temporary 503 error

Domain history and current status

Technical observations

Operator context

Why the score is 92

What the captured page showed

What the site claims

What we observed

What independent research found

What remains unverified

Technical threat

Operator / customer risk

Still, stay alert

Double-check the exact URL in your address bar

Use a password manager

Discuss this site on the forum

Legitimate enterprise DNS service with temporary 503 error

More reports in this category