Website reputation report

viessmann.de

Last checked 1 month ago · Point-in-time assessment

65/100Technical Safety ScoreIndependent technical assessment, not a visitor rating
Would you recommend this page? No community votes yet 0/0 Your vote is for this page in this report only—not the entire website. No account required · One vote per browser.
Captured homepage of viessmann.de in the current scan
Website screenshot from the current report

Share report

● Evidence is limited

What is this website?

Heiz-, Kühl- und Lüftungstechnik, die Lebensräume gestaltet und das Klima schont. Entdecke ganzheitliche Lösungsangebote von Viessmann.

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

65/100Safety Score
70%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History0 Infrastructure91 Website Security95 Security Hygiene70 Transparency51 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Current report context

What changed since the last scan

  • No earlier report to compare
What this scan could verify · 5 observed, 1 unavailable
DNS observed
Registration lookup unavailable Reason: stage unavailable
Network observed
TLS observed
Website response observed
Website content observed

Unavailable and unperformed checks are not clean results. The detailed evidence below remains the source for each conclusion.

Report an inaccuracy in this report →

Independent evidence brief

What we observed about viessmann.de

Updated Oct 4, 2026

The latest scan examined 10 public pages on viessmann.de. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its homepage, the site says: Heiz-, Kühl- und Lüftungstechnik, die Lebensräume gestaltet und das Klima schont. Entdecke ganzheitliche Lösungsangebote von Viessmann.

Registrar and domain history

A reliable creation date was not returned by the registration lookup. The report leaves domain age unverified rather than guessing.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

A valid TLS certificate was observed, expiring Nov 15, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 65/100. Evidence Confidence: 70%. These measure different things.

Community reviews of viessmann.de

No approved reviews yet ☆☆☆☆☆

Visitor experiences are separate from the independent technical Safety Score.

Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on viessmann.de

10 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

Hashtags found on the website: #StartDaheimGemeinsam . These are site-supplied labels, not search rankings.

Klimalösungen: Effizient heizen, kühlen, lüftenHeiz-, Kühl- und Lüftungstechnik, die Lebensräume gestaltet und das Klima schont. Entdecke ganzheitliche Lösungsangebote von Viessmann. Viessmann Leads & ViContact: Einfache AuftragsverwaltungMit Viessmann Leads kostenlos und hochqualifizierte Leads erhalten. Diese im Portal ViContact zentral, bequem und online verwalten. Mehr dazu hier! FAQ zu Heizung & Co. – Themen im ÜberblickFinden Sie hier interessante Fragen und nützliche Tipps rund um Ihre Viessmann Heizung und Themen Heizen, Lüften und Energie sparen. Unsere Services zu Ihrer HeizungVom Download von Bedienungsanleitungen und Prospekten über Infos zur Förderung und Finanzierung bis hin zum Gebäude-Energie-Spar-Check. Viessmann Fachpartner: Services & InfosAls Viessmann Fachpartner unterstützen wir Sie auf vielen Wegen. Alle wichtigen Informationen und digitalen Services auf einen Blick hier! Viessmann Home: Ihr Portal für Ihr EnergiesystemViessmann Home ist das zentrale Portal für Ihr Viessmann Energiesystem. Verwalten Sie Anlagen, Serviceverträge, Anfragen und weiteres online an einem Ort! Gebäude-Energie-Spar-Check für Ihr ZuhauseMit dem TÜV-zertifizierten Gebäude-Energie-Spar-Check ermitteln Sie sicher und einfach das Einsparpotential für Ihr Zuhause. Jetzt testen! Fachberatung unverbindlich anfordernFordern Sie in wenigen Schritten eine unverbindliche und kostenlose Fachberatung für Wohngebäude, Gewerbe, Industrie oder Kommunen an. Viessmann Fernwartung für HeizungenRund um die Uhr effizient heizen: Die Viessmann Fernwartung senkt Energiekosten und verlängert das Wartungsintervall vor Ort auf 2 Jahre. Mehr hier! Unsere Garantie – bis zu 10 JahreViessmann vereint Qualität, Technik und Effizienz - und gibt deshalb bis zu 10 Jahre Garantie. Alle Infos in der Übersicht zusammengefasst.

Public page evidence

Topics and keywords observed on viessmann.de

12 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

energie spar checkTitle, H1, Meta description2 sampled pages
gebäude energieTitle, H1, Meta description2 sampled pages
heizenTitle, H1, Meta description3 sampled pages
hierMeta description4 sampled pages
rund umH1, Meta description3 sampled pages
jahreTitle, H1, Meta description2 sampled pages
infosTitle, Meta description3 sampled pages
heizungTitle, Meta description2 sampled pages
alleH1, Meta description3 sampled pages
portalTitle, Meta description2 sampled pages
effizient heizenTitle, Meta description2 sampled pages
lüftenTitle, Meta description2 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
0/100

Evidence is unavailable.

InfrastructureWeight 10%
91/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
70/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
51/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLLocal antivirus is not enabled
Phishing.Database · exact hostnameLocal feed snapshot unavailable

Sampled scripts and pages

Resource antivirus is not enabled

0 resources checked · 3 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts3
Inline scripts1
Embedded frames1
External script hosts1

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domainviessmann.de
RegistrarUnavailable
RegisteredUnavailable
Domain ageUnavailable
ExpiresUnavailable
Registry statusesUnavailable
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address93.122.86.52
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://www.viessmann.de/
Endpoint93.122.86.52
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface14 records · 4 nameservers · 2 mail exchangers
Protection signals5 security headers · 1 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size238,560 bytes
HTTP check duration1,000 ms
Cookies observedUnavailable
Script resources3 · 1 external hosts
Frames and sampled checks1 frames · 0 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Let's Encrypt, commonName=YR2
Valid fromAug 17, 2026
Valid untilNov 15, 2026
Certificate namesviessmann.de

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A93.122.86.52TTL —
NSa.ns14.netTTL —
NSb.ns14.netTTL —
NSc.ns14.netTTL —
NSd.ns14.netTTL —
MX10 mxa-0065c301.gslb.pphosted.comTTL —
MX10 mxb-0065c301.gslb.pphosted.comTTL —
TXT00d58000000hyrreawTTL —
TXTautodesk-domain-verification=MlXhim6a9-HDT7zHlHPNTTL —
TXTfacebook-domain-verification=3ab431qluyeknsby2cnnlqvja21etxTTL —
TXTgoogle-site-verification=Kj-StaL3hIBG0uXS9pjaBTQ17dSbCcJqGGUWvseW9PQTTL —
TXTgoogle-site-verification=QlenZC3UnX84DgmXAPtK3zlgpAfQtkZDZlPK8ds_1rwTTL —
TXTMS=ms34405776TTL —
TXTv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCMonitoring-only DMARC policy

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

5 observed
content-security-policypresent default-src 'unsafe-inline' 'unsafe-eval' data: blob: *; frame-ancestors 'self' https://viessmann.atlassian.net;
permissions-policypresent geolocation=(self), camera=(self "https://heating-system-registration-b2b.viessmann.com" "https://heating-system-registration-b2b.viessmann-climatesolutions.com"), microphone=(self), autoplay=(self "https://www.youtube.com" "https://www.youtube-nocookie.com" "https://player.vimeo.com"), fullscreen=(self "https://www.youtube.com" "https://www.youtube-nocookie.com" "https://player.vimeo.com")
referrer-policypresent no-referrer-when-downgrade
strict-transport-securitypresent max-age=31557600
x-content-type-optionspresent nosniff

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Tailwind CSS 72%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

JavaScript advisory analysis could not be completed or no eligible script files were sampled. No clean result is implied.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Emailfachberatung@viessmann-climatesolutions.comSource: https://www.viessmann.de/de/services/beratung.html

Structured facts

Website identity & response

Public page metadata
Page titleKlimalösungen: Effizient heizen, kühlen, lüften
First headingGemeinsam stark: Das schlaue Wärmepumpen-System
DescriptionHeiz-, Kühl- und Lüftungstechnik, die Lebensräume gestaltet und das Klima schont. Entdecke ganzheitliche Lösungsangebote von Viessmann.
Canonical URLhttps://www.viessmann.de/
Final URLhttps://www.viessmann.de/
HTTP response200 · text/html;charset=utf-8 · 1000 ms
Languagede
Structured typesBreadcrumbList · Corporation · ListItem
Faq page detectedhttps://www.viessmann.de/de/services/faq.htmlPage page detectedhttps://www.viessmann.de/de/services.htmlContact page detectedhttps://www.viessmann.de/de/fachkunden/fachpartner/viessmann-leads.html
Local headers.permissions usb restricted100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
de100% evidence confidence
1100% evidence confidence
missing100% evidence confidence
Local headers.csp has object src100% evidence confidence
Dns consistency.cname present100% evidence confidence
unavailable100% evidence confidence
2100% evidence confidence
4100% evidence confidence
14100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence
Local headers.cors present100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
1100% evidence confidence
Local headers.hsts include subdomains100% evidence confidence
31557600100% evidence confidence
Local headers.hsts preload100% evidence confidence
1100% evidence confidence
Local headers.permissions camera restricted100% evidence confidence
Local headers.permissions geolocation restricted100% evidence confidence
Local headers.permissions microphone restricted100% evidence confidence
Local headers.permissions payment restricted100% evidence confidence

Connection path

Redirect chain

1 recorded hops
Hop 1https://www.viessmann.de/

The chain is shown exactly as observed by the scanner. A redirect is not itself a malware finding, but unexpected domains or an HTTP downgrade deserve review.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
bright-shield-trace-487

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

Show change history

No meaningful changes recorded yet.

Website icon for viessmann.de

Visual evidence

Website screenshot

Screenshot of viessmann.de
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

Show your verified trust report

Place this lightweight badge in your footer to show visitors an independent, dated WebsiteVirusScanner report. It can increase visitor confidence, but it never changes or guarantees the score.

Choose a badge style
Preview on your site
WebsiteVirusScanner trust badge preview

Use the current report link so visitors can verify the evidence. A badge is a transparency signal, not a paid ranking boost.

Questions about viessmann.de

FAQ

Still have questions? Contact us →
Is viessmann.de safe to visit?

The latest Safety Score is 65/100 with 70% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on viessmann.de?

External threat-provider coverage was unavailable for this scan, so malware status is unverified.

When was viessmann.de registered?

The registry lookup did not provide a reliable creation date in this scan.

Did viessmann.de have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with viessmann.de

Community reviews are moderated and remain separate from the technical Safety Score.

Write review →