Vaillant.co.uk (Domain) Investigation Report
Generated on Feb 17, 2026
Why we think so?
vaillant.co.uk is the official website of Vaillant Group UK, a leading manufacturer of boilers, heat pumps, and heating systems, based in the UK. The site attracts around 290,000 monthly visits, primarily from the United Kingdom, and uses recognized technologies including Adobe Analytics and Microsoft Azure. Contact information is openly available with multiple verified emails and phone numbers. The domain is secure, registered through a reputable registrar since 1996, and has no negative security flags or scam reports. Vaillant has a strong reputation supported by positive customer reviews and official complaints channels.
Risk Insights
Established and Secure Domain
- Domain registered since 1996.
- Valid SSL certificate issued by GlobalSign.
- Registered with reputable registrar Nexinto GmbH.
Strong UK Traffic and Presence
- ~290K monthly visits mostly from UK users.
- Low bounce rate (~49%) indicates engaged visitors.
- Website uses trusted analytics and technology tools.
Clear and Verified Contacts
- Multiple official emails like info@vaillant.co.uk.
- Several publicly listed phone numbers.
- Contact info corroborated by downloadable PDF manuals.
Clean Security Records
- No malware or phishing flags found.
- Not blacklisted on crypto scam or Google's safety lists.
- Secure HTTPS enforced site.
Positive Reputation and Reviews
- High customer ratings on Trustpilot and Which?.
- No scam or fraud reports against the site.
- Comprehensive complaint and warranty process accessible.
Category Scores
Red Flags & Warnings
- No scam or blacklist indicators detected for the domain.
- Customer complaints related to warranty and service exist but are typical for large manufacturers, no fraud evidence.
Detailed Checks & Insights
0-100 Scale
Domain Registration and SSL Validity
Score: 95
Domain Registration and SSL Validity
"Established domain age and security contribute to trust."
Reason: Domain vaillant.co.uk has a long registration history since 1996 with a reputable registrar and holds valid SSL certificates.
Website Traffic and User Engagement
Score: 90
Website Traffic and User Engagement
"Traffic sources and engagement metrics are consistent with a legitimate business website."
Reason: Monthly visits near 290K with majority traffic from UK showing genuine user base.
Contact Information Authenticity
Score: 85
Contact Information Authenticity
"Clear availability of official contact points supports legitimacy."
Reason: Multiple contact emails and phone numbers are verifiable on site and linked PDF materials.
Blacklist and Malware Scan
Score: 90
Blacklist and Malware Scan
"Safety signals are clean, indicating low risk from threats."
Reason: No records of blacklisting or malware detected in Google Safe Browsing or crypto scam databases.
Trademark and Brand Authenticity
Score: 90
Trademark and Brand Authenticity
"Trademark clearance reduces risk of brand impersonation."
Reason: No trademark conflicts detected ensuring Vaillant brand authenticity.
Reputation and User Feedback
Score: 90
Reputation and User Feedback
"Positive reputation alongside official complaint channels suggests trustworthiness."
Reason: Independent user reviews and complaints show strong satisfaction and no evidence of widespread fraud.
Physical Presence and Business Listings
Score: 85
Physical Presence and Business Listings
"Physical business locations add to trust and verifiability."
Reason: Google Places listings confirm physical locations with good customer ratings.
Your Next Steps
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1
Visit the official website to explore products and services directly.
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2
Use provided official contact emails and phone numbers for inquiries or support.
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3
Verify product authenticity and warranty by purchasing through authorized distributors.
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4
Be cautious of third-party sellers offering Vaillant products to avoid counterfeit parts.
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5
Monitor official news and updates from Vaillant for new offerings and customer policies.
Key Evidence & Citations
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SimilarTech Website Technology and Traffic Information for vaillant.co.uk
⤷ Site technology and traffic data confirms legitimacy and business scale.
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SimilarWeb Site Analytics for vaillant.co.uk
⤷ Traffic metrics predominantly from the UK indicate a real business presence.
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WHOIS and SSL Certificate Data for vaillant.co.uk
⤷ Domain registered since 1996, SSL cert valid, registrar credible.
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Vaillant Contact Details and Emails Scraped
⤷ Official contact information publicly available and verified.
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USPTO Trademark Search Results
⤷ No trademark conflicts for Vaillant brand in the US.
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Google Places Listings for Vaillant Group UK Ltd
⤷ Physical locations with strong customer ratings reinforce legitimacy.
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Google Safe Browsing Report
⤷ No safety risks or phishing reported.
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Customer Reviews and Complaints Analysis
⤷ Generally positive reviews; some typical service complaints but no scam reports.
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