About Trusted Sender Score

Trusted Sender Score is an easy to understand email domain trust rating to help email users know if a website URL (domain) and the use of email by the operator can be trusted. The score is based on a scale of 0 - 10, with 0 being untrustworthy and 10 being the highest trust rating.

Trusted Sender Score is free to use for general users and we have also provided free tools for domain admins so that more domains become safe

Technical metrics are combined with email practices and user feedback to produce a score that can be used to check if a website domain can be trusted.

  • Taking the necessary steps to protect your personal details
  • Preventing their domain from being used to trick you by cyber criminals
  • Follows email sending best practices and won't SPAM you or over email you

All we ask is that you share your experience that you have had with a domain (comments / voting is at the bootom of the Trusted Sender Score result page) and share our App using #tss and #checkitfirst

How else can I use Trusted Sender Score

A domain's Trusted Sender Score can be checked from the web on any device. It can also be added to your web browser if you are using Firefox or Chrome. Please click on the button below.

We recommend using Trusted Sender Score (if practical) before buying or signing up to any web site or organization. Also BEFORE submitting your details. That includes any paper forms that request your email address.

If you have already subscribed or purchased from a web site, it's no problem, you can use Trusted Sender Score if you receive an email that seems odd or out of character, especially if the FROM EMAIL ADDRESS contains the same or a similar domain to the one that was you signed up to.

Trusted Sender Score is useful when deciding:

  • If you should buy from a web site.
  • Whether you should subscribe to newsletters (which may seem harmless but in fact SPAM and unwanted email clutters inboxes and is a haven for email scams)
  • What to do if you receive an email that you don't recognise or if an email you receive asks you to update personal details or click for more information etc.

Quite sometime ago there was a new and free technical standard which has been adopted by many governments and organisations. This standard, if implemented correctly and by every domain owner, will not only stamp out illegal use of an email, SPAM will significantly reduce and scam emails will be very simple to identify.

Trusted sender uses more than 18 technical metrics which are combined with email practices and user feedback to produce a score that can be used to check if a website domain operator is:

  • Taking the necessary steps to protect your personal details
  • Preventing their domain from being used to trick you by scammers
  • Following email sending best practices and won't SPAM you or over email you
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About Trusted Sender Score

Trusted Sender Score is an easy to understand, email domain trust rating, to help email users know if a website URL (domain) can be trusted ...read more

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Check it first

Help promote cyber safety and a better email planet by posting your Trusted Sender Score results with #tdd and #checkitfirst. Simply screen shot the score and share it on your favourite social media app.

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Terms of Use

Please use this application as a guide only, you have the final decision as to whether you trust an email or domain. Zulu Labs Pty Ltd and associated companies can not be held liable for any decsions made by using this application. For further terms of use please click here