Terms

Fusebox terms of service

Last updated July 11, 2026. These Terms explain the Fusebox license, payment, external services, acceptable use, report limitations, and the responsibilities that come with using the extension.

Before you rely on a report

Fusebox is an evidence and investigation tool. It can help you ask better questions about a website, but it does not certify the website or replace your own judgment, authorization, or professional advice.

1. The service

Fusebox is a browser extension and related website-analysis service. It reads technical information from the active tab, combines local analysis with selected public lookups, and presents evidence-backed reports. An optional community contribution feature can accept minimized derived signals only after you enable it and invoke the contribution action. Fusebox is not a browser, hosting provider, security monitoring service, legal adviser, or guarantee that a website is safe, legitimate, compliant, or trustworthy.

2. Eligibility and acceptance

You may use Fusebox only if you can legally enter these Terms and your use complies with the laws and policies that apply to you. By installing, accessing, buying, or using Fusebox, you agree to these Terms and the Privacy Policy. If you use Fusebox for an organization, you represent that you can accept these Terms for that organization.

3. License and purchase

After a valid purchase, Fusebox grants you a limited, personal, non-exclusive, non-transferable license to use the extension for its intended purpose. The price, included version/update rights, and any purchase-specific conditions are shown at checkout. A license key is not an account or a transferable security token: do not publish, resell, share, or attempt to reverse-engineer it. We may refuse, suspend, or revoke a license obtained through fraud, chargeback, abuse, or material breach of these Terms.

4. Checkout and refunds

Payments may be handled by Stripe Checkout or another storefront identified at the time of purchase. The payment provider's checkout terms and privacy policy also apply to the payment transaction. Our current refund approach is described on the Support and Refunds page: try Fusebox for 14 days after purchase and contact support with your receipt if it does not help you inspect websites as advertised. An explanation is not required. Mandatory consumer rights are not limited by this section.

5. External services

Fusebox depends on independent services for DNS, domain registration, IP/ASN, historical, payment, license, and optional AI functions. Those services can change, rate-limit, block, retain, or process requests under their own terms. Their availability and accuracy are outside Fusebox's control. The exact purpose and data sent to each service are disclosed in the table below and in the Privacy Policy.

6. Acceptable use

Use Fusebox only on pages and data you are authorized to inspect. You must not use it to bypass authentication or access controls, violate a site's terms or robots directives, collect personal data without a lawful basis, overload or abuse public APIs, probe systems without permission, infringe another person's rights, or use reports to facilitate fraud, harassment, discrimination, or unlawful surveillance. You are responsible for the websites you inspect and the data you submit to any AI provider.

7. Reports, AI, and decisions

Reports are observations and heuristics based on the evidence available at the time. A website can hide, proxy, change, or misrepresent its technology. Public registration, DNS, IP, and archive data can be incomplete or wrong. AI output can be inaccurate, incomplete, or unavailable. Do not use Fusebox as the sole basis for a security, financial, employment, legal, compliance, or safety decision; verify important conclusions independently.

8. Your content and third-party rights

You keep your rights in content you inspect, prompts you write, and files or reports you export. You give Fusebox only the limited rights needed to provide the feature you invoke. You are responsible for having the rights and permissions needed to inspect, copy, export, or send that content to a provider. Third-party websites, APIs, models, and storefronts remain subject to their own licenses and terms.

9. Intellectual property

Fusebox, its software, branding, documentation, report presentation, and original content are owned by Fusebox or its licensors and are protected by applicable law. These Terms do not transfer ownership to you. You may not copy, modify, distribute, sell, lease, sublicense, or create a competing product from Fusebox except as allowed by law or by written permission.

10. Changes, availability, and termination

We may update, suspend, limit, or discontinue a feature, integration, alpha tool, or version. We may also suspend access when necessary to protect the service, comply with law, address abuse, or enforce these Terms. You may stop using Fusebox at any time. Sections that should survive termination—including payment obligations, intellectual property, disclaimers, limits of liability, and dispute-related provisions—will survive.

11. Disclaimer of warranties

To the maximum extent permitted by law, Fusebox is provided as available and without warranties of any kind, express or implied. We do not warrant that the service will be uninterrupted, error-free, secure, current, compatible with every page or browser, or accurate enough for a particular purpose. No report, support response, or marketing statement creates a warranty unless it is expressly stated in writing.

12. Limitation of liability

To the maximum extent permitted by law, Fusebox and its operator will not be liable for indirect, incidental, special, consequential, exemplary, or punitive damages, or for lost profits, data, business, goodwill, or opportunities arising from use of or inability to use the service. To the maximum extent permitted by law, the total liability for a claim relating to Fusebox will not exceed the amount you paid for Fusebox during the twelve months before the event giving rise to the claim. Nothing in these Terms excludes liability that cannot legally be excluded.

13. Contact and updates

Questions, notices, support requests, and privacy concerns can be sent to support@fusebox.dev. We may update these Terms when the product, law, or integrations change. The date at the top of this page identifies the current version. If a change materially affects your rights, we will provide notice where the law requires it.

External service register

Not every service is contacted for every report. This register is part of these Terms so the dependency and purpose are explicit:

Service	Purpose	When used
Google Public DNS (dns.google) Google Public DNS privacy	Resolve A, AAAA, MX, TXT, NS, CNAME, and SOA records, and resolve a hostname before an IP report. Data sent: The target domain and the requested DNS record type.	When a DNS or IP report runs.
RDAP.org RDAP.org privacy considerations	Retrieve domain registration data such as registrar, registration dates, status, and name servers. Data sent: The target domain.	When a WHOIS/domain report runs.
IPinfo (ipinfo.io) IPinfo privacy policy	Provide IP, ASN, network-owner, and location context for the inspected hostname. Data sent: The resolved IP address and, if supplied by the user, an IPinfo token.	When the IP/hosting report runs.
RIPEstat RIPE NCC privacy statement	Provide an ASN fallback when IPinfo does not return ASN data. Data sent: The resolved IP address.	Only when the IP report needs an ASN fallback.
Internet Archive Wayback Machine Internet Archive privacy information	Retrieve historical capture dates, counts, and snapshot URLs for a domain. Data sent: The target domain.	When the history report runs.
Fusebox license service (Cloudflare Workers and D1) Cloudflare privacy policy	Run checkout orchestration, issue and validate licenses, and support restore/manage flows. Data sent: For validation: license key, installation ID, and extension version. For purchase: email, checkout/license records, a short campaign source code, and an optional buyer-selected source answer. Cloudflare may also receive standard request and security metadata.	When a user buys, activates, restores, or validates a Fusebox license.
Fusebox community observations (Cloudflare Workers and D1) Cloudflare privacy policy	Accept an explicit, opt-in contribution of minimized aggregate technology, hosting, tracker, security, and risk signals. Data sent: Registrable domain, observation date, extension version, normalized signal IDs, and optional security grade. No page HTML, full URL, source, cookies, prompts, or raw network data.	Only after the user enables community sharing and presses the contribution action for a report.
Stripe Checkout Stripe privacy policy	Process a payment and provide payment status and receipt information to the license service. Data sent: Email, payment, and billing details entered into Stripe's hosted checkout. Fusebox does not receive full payment-card numbers.	When a purchase is completed through Fusebox checkout.
OpenAI API OpenAI business/API privacy information	Optional cloud AI for chat and narrative analysis when the user supplies an OpenAI API key. Data sent: The user's prompts and conversation, the current URL/domain, and any report or active-tab context included in the AI request.	Only when the user selects OpenAI cloud AI.
Vercel AI Gateway Vercel privacy notice	Optional gateway for cloud AI models when the user supplies a Vercel AI Gateway key. Data sent: The user's prompts and conversation, the current URL/domain, and any report or active-tab context included in the AI request. The gateway may route the request to the selected model provider.	Only when the user selects Vercel AI Gateway cloud AI.
Chrome Prompt API / Chrome model delivery Chrome Prompt API documentation	Optional on-device AI and availability or download of the browser-managed model. Data sent: Fusebox sends prompts and selected context to the browser's on-device model. Chrome may download model assets after the user consents; Fusebox does not send the report to its own server in this mode.	Only when the user enables on-device AI and Chrome makes the Prompt API available.