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Mercury.co.nz (Domain) Investigation Report

Generated on Feb 3, 2026

Recommendation
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Overall Summary
Safe
  Why we think so? 

mercury.co.nz is the website for Mercury NZ Limited, a leading New Zealand energy company offering electricity, gas, internet, and phone services. With about 395,000 monthly visits mainly from New Zealand, the site uses reputable technologies like Amazon AWS, Microsoft Azure, and Cloudflare, reflecting solid infrastructure. The domain has been registered since 2001 and maintains valid SSL certificates, indicating a well-established online presence. Customer feedback shows mixed reviews: many appreciate competitive rates and promotions, but billing and customer service issues appear in some reports. Mercury NZ was fined NZ$279,500 for misleading customers about early termination fees in 2023 but has taken responsibility. No scam or phishing flags were detected, and the company is active with verified contact emails and phone numbers. Overall, mercury.co.nz is a legitimate business site with some consumer complaints and no significant security risks identified.

Confidence Score Our overall confidence rating for this entity based on public signals, activity, and risk checks.
85%

Risk Insights

🛡️

Established Domain and Secure Site 🛡️

  • Registered since 2001
  • Valid SSL certificate until mid-2026
  • Uses reputable cloud providers
🌏

Large, Genuine Traffic from NZ

  • ~395,000 monthly visits
  • 93.9% traffic from New Zealand
  • Good engagement metrics
⚠️

Customer Service and Compliance Issues

  • Fined NZ$279,500 for misleading customers
  • Mixed user reviews on billing and customer service
  • No current scam or phishing flags

Category Scores

Red Flags & Warnings

  • Recent fine of NZ$279,500 for misleading customers about termination fees indicates some compliance and communication issues.
  • Mixed customer reviews with reports of billing errors and customer service inconsistencies.

Detailed Checks & Insights

0-100 Scale

Domain Age and Registration

Score: 95
Passed

"Registered on 2001-11-15 with no current expiration issues; registrar is reputable (Netregistry)."

Reason: The domain mercury.co.nz has been registered since 2001, showing long-term establishment.

SSL Validity and Security

Score: 90
Passed

"Certificate uses strong RSA-SHA256 signature algorithm and is currently valid."

Reason: Valid SSL certificate issued by Sectigo until July 2026 ensures secure HTTPS access.

Traffic Volume and Quality

Score: 85
Passed

"Bounce rate (~33%) and pages per visit (~5) indicate engaged visitors."

Reason: Approximately 395,000 monthly visits mainly from New Zealand reflect genuine usage.

Technology Stack

Score: 85
Passed

"Presence of security and analytics technologies validates professional operation."

Reason: Uses well-known, paid cloud and content delivery technologies including AWS, Microsoft Azure, and Cloudflare.

Blacklist and Scam Reports

Score: 90
Passed

"This suggests the domain is not involved in phishing or fraud."

Reason: No blacklist entries or scam flags detected from Google Safe Browsing or crypto scam sniffer tools.

Trademark and Brand Impersonation

Score: 100
Passed

"USPTO trademark search returned no issues."

Reason: No trademark conflicts found with 'mercury.co' supports brand legitimacy.

Customer Complaints and Legal Issues

Score: 40
Failed

"While the company addressed the issues, complaints about billing errors and customer service inconsistencies remain."

Reason: Mercury NZ was fined NZ$279,500 in 2023 for misleading customers on early termination fees and faces some billing complaints.

Your Next Steps

  • 1

    Verify contact details through official Mercury NZ channels before engaging for services.

  • 2

    If considering switching providers, review Mercury's billing policies carefully due to past complaints.

  • 3

    Use HTTPS and trusted payment methods when interacting with the site to ensure security.

Key Evidence & Citations

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Analyst Briefing

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