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Relaymetry

Terms of Service

Effective date: 2026-05-09 (date of first publication on relaymetry.com) Last updated: 2026-05-09 (initial publication)

These Terms of Service ("Terms") govern your use of the Relaymetry website at https://relaymetry.com and the services it provides ("the Service"). Please read them carefully. By using the Service, you agree to be bound by these Terms. If you do not agree, please do not use the Service.

The Service is currently operated by an individual founder as a natural person (the "Operator"). When the Service incorporates as a legal entity, these Terms will be updated and you will be notified of the change in advance.

The Service is not directed at, marketed to, or intended for residents of the European Economic Area or the United Kingdom. Users access the Service at their own initiative and at their own risk regarding compliance with their local law. We do not knowingly collect personal data from residents of jurisdictions where doing so would require local registration or representation we have not obtained. Such residents may contact privacy@relaymetry.com for deletion.

1. What the Service is (and is not)

Relaymetry provides:

  • Free, public domain-health check tools that perform live DNS, mail-authentication (SPF, DKIM, DMARC), blacklist, and TLS-transport queries against domains you submit, and present the results in a human-readable format.
  • A waitlist sign-up so you can be notified when paid features launch in the future, or when something on a domain you specified breaks.
  • Educational content about email deliverability and domain configuration.

Relaymetry does not:

  • Modify your DNS or mail servers in any way. We only read public DNS records.
  • Send emails on your behalf to anyone other than you (the email you submitted to the waitlist).
  • Provide professional legal, regulatory, or compliance advice. The information surfaced by our tools is for diagnostic and educational purposes only.
  • Guarantee any specific outcome (delivery rate, inbox placement, or compliance with any specific regulation).

The Service is provided as a public utility during this pre-launch phase, free of charge. Future paid features will be subject to additional terms specific to those features.

2. Acceptance of Terms

By accessing or using the Service, you confirm that:

  • You are at least 16 years old (or the minimum age required to enter binding agreements under your local law, whichever is higher). The Service is not directed at children.
  • You have the legal capacity to enter into these Terms.
  • You will use the Service only for the purposes permitted in Section 4 below.

If you are using the Service on behalf of an organisation, you confirm that you have the authority to bind that organisation to these Terms.

3. The Privacy Policy is part of these Terms

Our Privacy Policy describes how we collect, use, share, and protect personal data. By using the Service, you also accept the Privacy Policy. Where the Privacy Policy and these Terms differ on any matter of personal-data handling, the Privacy Policy prevails.

4. Permitted use

You may use the Service to:

  • Check domains that you own, that you administer, or that you have explicit authorisation from the owner to check.
  • Sign up for our waitlist with your own email address.
  • Read our educational content for personal or organisational use.

You agree to:

  • Provide accurate information when you submit forms.
  • Use the Service in accordance with applicable laws and regulations in your jurisdiction.
  • Respect our published rate limits (currently a small number of requests per minute per source IP for free-tool usage; the exact thresholds may change without notice as we tune them).

5. Prohibited use

You agree not to:

  • Automate access beyond our published rate limits, or attempt to evade rate limits (for example, by rotating IPs or using proxies for the express purpose of exceeding our limits).
  • Scrape, mass-export, or republish data produced by the Service in a way that competes with us or that creates a derivative service.
  • Resell raw output of the Service as part of a paid product or as paid consulting deliverable, without prior written agreement from us.
  • Submit domains that you do not own and for which you do not have explicit authorisation, with the express intent to harm, defame, or expose the operator of those domains.
  • Reverse-engineer, decompile, or otherwise attempt to extract the source code or internal logic of the Service beyond what is permitted by applicable law.
  • Probe, scan, or test the vulnerability of the Service, or breach any security or authentication measures, without our prior written consent.
  • Use the Service to violate any third party's rights, including intellectual property, privacy, or contractual rights.
  • Submit malicious payloads intended to crash, disrupt, or compromise the Service or its infrastructure.
  • Impersonate any person or entity, or misrepresent your affiliation with any person or entity.
  • Engage in any activity that is fraudulent, deceptive, harmful, or otherwise unlawful.

We reserve the right to suspend or terminate access for any user who, in our reasonable judgment, violates these prohibitions.

6. Intellectual property

The Service — including its source code, design, content, branding, and "Relaymetry" name — is the intellectual property of the Operator unless otherwise indicated. The DNS data we surface is public information about the domains queried; the formatting, presentation, and analysis of that data is ours.

You retain all rights to any data you submit (such as your email address or domain queries). By submitting data to the Service, you grant us the non-exclusive, royalty-free licence to process that data for the purposes described in our Privacy Policy.

You may quote our published content with attribution; you may screenshot results from the tools for personal or operational use. You may not copy our source code, branding, or written content for use in a competing service.

7. Disclaimer — the Service is provided "as is"

To the maximum extent permitted by applicable law:

  • The Service is provided "as is" and "as available", without warranty of any kind, whether express, implied, statutory, or otherwise.
  • We disclaim all warranties of merchantability, fitness for a particular purpose, non-infringement, accuracy, completeness, reliability, security, and uninterrupted availability.
  • Specifically: the results returned by our domain-health check tools are based on live queries to public DNS, mail servers, and public blacklist sources at the moment of your request. These sources may be inaccurate, incomplete, delayed, or temporarily unavailable. We do not guarantee that the results we display are correct, complete, or up to date.
  • We do not guarantee that the Service will meet your specific requirements, that it will be available at all times, that it will be error-free, or that any defects will be corrected.

You use the Service at your own risk and at your own discretion. Nothing in the Service should be construed as professional legal, regulatory, compliance, or technical advice. If you need such advice, please consult a qualified professional.

8. Limitation of liability

To the maximum extent permitted by applicable law:

  • The Operator, contributors, and sub-processors of the Service shall not be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages arising out of or in connection with your use of the Service, even if advised of the possibility of such damages.
  • The Operator's aggregate liability for direct damages, in any cause of action whatsoever and regardless of legal theory, shall not exceed $100 (one hundred U.S. dollars) or the local equivalent.
  • This limitation applies whether the cause of action arises from contract, tort, strict liability, or any other legal theory.

Some jurisdictions do not allow exclusion of certain warranties or limitation of certain damages; in such jurisdictions, the limitations above apply only to the extent permitted by law, and you may have additional rights.

9. Indemnification

You agree to indemnify and hold harmless the Operator from any claim, demand, loss, liability, cost, or expense (including reasonable lawyer's fees) arising from:

  • Your use of the Service in violation of these Terms.
  • Your violation of any third party's rights.
  • Domains you submit without proper authorisation.

This indemnity does not apply to the extent any such claim arises from our own gross negligence or wilful misconduct.

10. Publication of third-party domain data + abuse / takedown

The Service generates publicly accessible URLs of the shape /report/<domain>, /tools/<tool>/<domain>, and /check/<probe>/<input> that contain DNS-layer information about the domain submitted. This is public information queryable from any DNS resolver — we do not access private records. By default these URLs are indexable by search engines.

We redact identified personal data fields before display, including:

  • The RNAME (zone administrator email) field of SOA records — masked.
  • WHOIS registrant email and personal name — not displayed.
  • Reverse-DNS PTR records that appear to identify a specific individual — display with a disclaimer.

If you are the owner of a domain and have a legitimate reason to request that your domain not be presented through our public surface, you may submit a takedown request to abuse@relaymetry.com. We commit to a first-response service-level objective of five (5) business days for properly verified takedown requests.

To submit a takedown request:

  1. Email abuse@relaymetry.com from an email address at the domain in question (so we can verify control), or include alternative proof of ownership.
  2. Identify the domain and explain the reason for the takedown.
  3. Optionally pass a one-time DNS TXT challenge that we will provide, to confirm domain ownership.

Valid requests result in:

  • All /report/<domain>, /tools/*/<domain>, and /check/<probe>/<domain> URLs for that domain becoming noindex-tagged within 5 business days.
  • Addition of the domain to an internal reporting-suppression list, after which those URLs render a neutral "This domain is not available for public reporting" page instead of DNS data.

We may refuse takedown requests that are clearly bad-faith, that are submitted for harassment purposes, or that lack reasonable verification of authority.

We do not respond to takedown requests for domains other than the one you have authority over.

11. Termination

You may stop using the Service at any time. If you have a waitlist sign-up, you may unsubscribe via the link in any email we have sent you, or by contacting privacy@relaymetry.com.

We may suspend or terminate your access to the Service at any time, with or without notice, if:

  • You violate these Terms.
  • Your use of the Service creates risk or potential legal exposure for the Operator or other users.
  • We discontinue the Service.
  • We are required to do so by law.

Termination does not extinguish any obligations that have accrued before termination, including indemnification obligations and limitation-of-liability provisions.

12. Modification of these Terms

We may update these Terms from time to time. The current version is identified by the "Last updated" date at the top.

For material changes, we will:

  • Update the "Last updated" date.
  • Publish a change-summary at the top of this page for at least 30 days.

Continued use of the Service after material changes constitutes your acceptance of the updated Terms. If you do not agree, you should stop using the Service.

A complete change history of these Terms is available in our public repository at https://gitlab.com/evilmorte/relaymetry under docs/legal/terms-of-service.md. The git commit log of that file is the authoritative record.

13. Governing law and dispute resolution

These Terms are governed by the laws of England and Wales, without regard to conflict-of-laws principles.

If a dispute arises between you and the Operator, the parties shall first attempt to resolve it amicably by good-faith negotiation, including correspondence to privacy@relaymetry.com. If negotiation fails, disputes shall be resolved in the competent courts of England and Wales, with venue in London, to the extent permitted by applicable law.

When the Service incorporates as a legal entity, the governing law and venue will change to match the entity's country of registration.

14. General provisions

  • Entire agreement. These Terms (together with the Privacy Policy) constitute the entire agreement between you and the Operator with respect to the Service.
  • Severability. If any provision of these Terms is held invalid or unenforceable, the remaining provisions shall remain in full force and effect.
  • No waiver. Our failure to enforce any right or provision of these Terms shall not be deemed a waiver of that right or provision.
  • Assignment. You may not assign or transfer these Terms or any rights under them without our prior written consent. We may assign these Terms to a successor entity (for example, when we incorporate) without restriction.
  • Headings. Section headings are for convenience only and have no legal effect.
  • Force majeure. Neither party shall be liable for failure to perform any obligation due to circumstances beyond its reasonable control (natural disaster, infrastructure failure, government action, etc.), provided that the affected party gives reasonable notice and resumes performance as soon as practicable.

15. Contact

For questions about these Terms, including reporting a violation or requesting a clarification:

We aim to respond to all good-faith inquiries within five (5) business days.

These Terms were authored by the Operator and are maintained in version control. The latest version is always available at https://relaymetry.com/terms. The full edit history is publicly accessible in the project's source repository.