Privacy Policy

Last updated November 8, 2026.

Below is our privacy policy, detailing how we collect, use, safeguard, and protect the information you provide when using Lightmeter.io email delivery services. Lightmeter.io is a service offered by Lightmeter Ltd (“Lightmeter”), a company registered at 128 City Road, London, United Kingdom, EC1V 2NX, through the website Lightmeter.io. This Service enables our clients to send and manage sales emails.

Information Covered by This Privacy Policy

This privacy policy covers personal information that we collect, use, and share, as described below. It does not cover how our Users may use or share data they collect using our Services.

When you sign up to use our Services on Lightmeter.io, your personal information will be collected, used, and shared in accordance with this privacy policy.

Information We Collect from You

In the course of using our Services, we obtain the following information about you, which we collect for the purposes described below.

Signing Up for Service – Free or Paid

When you sign up for a Lightmeter.io account, subscribe to our newsletter, submit a product inquiry, or contact our support team, you provide us with information such as your name, email address, organization, phone number, geographic location, and password.

When you purchase a paid plan, you provide payment information, including credit card data, through our Services or otherwise.

When you send email through the Lightmeter.io delivery network, we have access to the email content and recipient details, as well as any replies and messages sent to mailboxes hosted on our servers. We may also collect metadata about your use of our Services and the emails you send (including clicks and opens of tracked email content).

By providing this information, you consent to its collection, use, and storage by us in accordance with this Privacy Policy.

Website Visits

When you visit Lightmeter.io, whether you have an account or not, we use cookies, server logs, and other methods to collect data about your visits. Cookies are small computer files that may be downloaded to your computer’s hard drive when you visit a website. For more information about cookies and how you can control them, visit AboutCookies.org.

Data relating to your online activity on our website concerning our Services includes the following:

  • IP address
  • Browser type and version
  • Geographic location
  • Pages you view
  • How you accessed our Services and any links you click on to leave our Services
  • Issues you encounter requiring support or assistance
  • Any device or other methods of communication you use to interact with the Services

Visits to Our Customers’ Sending Domains

Our customers send email from domains that we manage for them. When someone opens the web address of one of those domains, we send them on to the customer’s website. While doing that, we record the visitor’s IP address, browser and device details and the technical information the browser sends with the request, the date and time, and the approximate location and type of network derived from the IP address.

We use this information to show our customers how many people visit their domains, and to filter out automated traffic and abuse. A security provider processes it on our behalf to detect automated traffic. We don’t use this information to work out who the visitor is.

We process this information on behalf of the customer whose domain was visited, who is the data controller. We keep it for at least 12 months for security and abuse prevention. To ask about or delete this information, contact the company whose domain you visited, or contact us at hello@lightmeter.io.

Do Not Track and Tracking by Other Parties

Our website does not respond to Do Not Track signals from browsers. Google Analytics collects information about visits to our website, and Google may collect information about your online activities over time and across different websites.

How We Use Your Information

We use this information to create and secure your Lightmeter.io account, ensuring that only you can access the Services you have requested. We also use it to contact you regarding your account status (activation, upgrades, suspension, etc.) and for payments and service subscriptions.

We may send you system-alert messages to inform you of planned maintenance, system improvements, version updates, and other customer service information. Additionally, we may use your contact details to send you updates on our latest services and products or to learn more about our clients.

For payment services, Lightmeter uses a third-party provider, Stripe. Payment information you provide when making a purchase via Stripe, including credit card data, will be used only to facilitate payment for our products and services. Stripe is the data controller for this payment information. We receive information about purchases to provide the purchased service and to analyze feature success.

We use your Lightmeter.io account information to provide you with Lightmeter.io services, such as sending emails on your behalf and tracking open and click data if requested. We may aggregate and anonymize data to analyze trends, enhance service delivery, and verify compliance with our Terms of Service. Such aggregated data will not identify individual users.

We may use your data to analyze visitor behavior on our website to improve our website and Services. Additionally, we may use aggregated and anonymized data to produce reports on trends and statistics, such as email open rates by industry, campaign best practices, or the number of users exposed to or clicked on our websites.

How We Share Your Information

We may share your information with third parties in the ways that are described in this Privacy Policy, as well as the following:

Data Controller and Data Processor Roles

When we process any personal data on your behalf in the course of providing our Services, you are the data controller, and we are the data processor. This means that you are responsible for ensuring that you are entitled to transfer the relevant personal data to us so that we may lawfully process and transfer it in accordance with this policy and applicable agreements, including the UK General Data Protection Regulation (UK GDPR), the Data Protection Act 2018 and, where it applies, the EU General Data Protection Regulation (EU GDPR).

International Data Transfers

Some of our service providers process personal data outside the UK and the European Economic Area, including in the United States. When personal data is transferred outside the UK or the European Economic Area, we protect it with an adequacy decision, such as the UK-US Data Bridge or the EU-US Data Privacy Framework where the recipient is certified, or with standard contractual clauses approved by the UK Information Commissioner or the European Commission.

Disclosure to Third Parties

We only disclose personal data to third-party contractors or professional advisors when necessary to provide you with our Services or to comply with legal obligations. These parties are bound by confidentiality obligations and may only use the data in accordance with our instructions and as permitted by law.

Customer Obligations

You must ensure that any personal data provided to us is accurate, complete, and that relevant third parties have been informed of, and have given their consent to, such use, processing, and transfer as required by all applicable data protection legislation, including the UK GDPR, the Data Protection Act 2018 and, where it applies, the EU GDPR.

Non-Identifying Data

We may share aggregated, anonymized information (which does not reveal any individual data) with third-party partners to improve our services and for analytical purposes.

Google Calendar

If you connect Google Calendar to Lightmeter, we read events on the calendar you connect only to identify meetings with people you emailed through Lightmeter, or with their colleagues. For each such meeting we store the meeting time, its status and the matched person’s email address. We do not store event titles, descriptions, locations or other attendees.

Lightmeter’s use and transfer of information received from Google APIs to any other app will adhere to the Google API Services User Data Policy, including the Limited Use requirements.

People at Lightmeter do not read your calendar data unless you ask us to for support, it is needed for security, or the law requires it. We do not sell calendar data, use it for advertising, or use it to train AI models other than for features you use.

When you disconnect Google Calendar, we stop reading it and delete our access token. Meetings already recorded as bookings stay in your workspace’s reports until you ask us to delete them. You can remove Lightmeter’s access at any time at https://myaccount.google.com/permissions.

Slack

If you connect Slack, Lightmeter stores your Slack workspace’s name and ID, the name and ID of the channel you choose, the Slack ID of the person who connected it, and the Lightmeter bot’s access token, which is encrypted. When someone uses a Lightmeter button in Slack, Lightmeter records their Slack user ID, what they clicked and when. Lightmeter looks up your Slack members’ email addresses only to match them with members of your Lightmeter workspace. It doesn’t read your channels or messages. To stop access, remove the Lightmeter app from your Slack workspace.

CRMs

If you connect a CRM to Lightmeter, we use it to show you how your outreach turns into pipeline and revenue, for example which conversations became deals and which deals were won.

We only keep records related to the people and companies you contact through Lightmeter.

Only the team members you add to your Lightmeter workspace, and Lightmeter staff when supporting you, can see this information. We use it only to provide the Lightmeter services you subscribe to, and we never sell it or use it for advertising.

When you disconnect a CRM, we stop reading it. Information already stored stays in your workspace until you ask us to delete it.

Retention of Personal Information

Your personal data will be retained by Lightmeter no longer than necessary for the specific purposes for which it is processed. Personal data will be retained as long as necessary for the purposes of processing unless otherwise required by law. You can access your personal data as long as you have an active account with us and for a varying period depending on the data type. If your account is inactive for 24 or more months, we may terminate the account. Once terminated, we may permanently delete your account and associated data, including your Campaigns. Usernames are unique and cannot be reclaimed after account termination.

We store collected data in various places within our infrastructure, including system log files, back-end databases, and analytics systems.

Protection of Your Personal Information

We are committed to safeguarding your personal information and transaction details. We have implemented appropriate organizational and technical security measures to protect your data against unauthorized disclosure or processing. These measures include electronic, physical, and managerial procedures to safeguard the data gathered through our Services.

While we strive to implement the best security measures, absolute security cannot be guaranteed. In the event of a security breach affecting your data, Lightmeter will inform you without undue delay, and we will take all necessary steps to mitigate the breach and its effects.

Any user, customer, or hacker who exploits a security breach is liable to criminal prosecution.

Your Rights

Under the UK GDPR and the Data Protection Act 2018, and the EU GDPR where it applies, you have the following rights:

  • The right to request access to your personal data and information on the purposes of processing, categories of personal data processed, recipients of the data, retention periods, and your rights to rectify, erase, or restrict processing, among others.
  • The right to rectify inaccurate or incomplete personal data.
  • The right to obtain the deletion of your personal data under certain conditions (e.g., if the data is no longer necessary for its original purpose).
  • The right to restrict the processing of your personal data under certain conditions.
  • The right to object to the processing of your personal data if it is carried out for the performance of a public task or to defend a legitimate interest of the controller.
  • The right to lodge a complaint with the Information Commissioner’s Office (ICO).

Any rectification, deletion, or limitation of processing carried out at your request will be communicated by Lightmeter to each recipient to whom your personal data was transmitted unless this proves impossible or requires disproportionate efforts.

If your personal data is incorrect or outdated, please inform Lightmeter so corrections and updates can be made.

Updating Your Personal Data

To update your account details, please submit a request to us.

Lightmeter accounts require an email and password to log in. Clients must keep their email and password secure and never disclose them to third parties. Account passwords are hashed, so we cannot read them. We will provide instructions on resetting your password upon request.

How Can I Erase Data About Me?

You can request that your account, including all associated data, be deleted by contacting us via the contact form or email.

California Residents

This section applies to residents of California and supplements the rest of this policy.

Personal information we collected in the last 12 months:

  • Identifiers, such as name, email address, phone number and IP address. We collect these from you, from your browser, and from business contact databases we use for our own sales outreach.
  • Professional information, such as your organization and job title, from you or from those databases.
  • Commercial information, such as the plan you buy and your billing history, from you.
  • Internet and network activity, such as visits to our website and to our customers’ sending domains, and opens and clicks of tracked emails, from your browser or email client.
  • Approximate location derived from an IP address.
  • Sensitive personal information: your account login and password. We use it only to give you access to your account and keep it secure.

We use this information for the purposes described in “How We Use Your Information”: to provide, secure and improve our Services, to bill you, to support you, to communicate with you and market our Services, to detect automated traffic, fraud and abuse, and to meet legal obligations.

We disclose personal information for these business purposes to our service providers, which include hosting, payment processing, website analytics, email delivery, customer relationship management, security and fraud prevention, and AI providers for features you choose to use; to our professional advisers; and to authorities when the law requires it.

We do not sell personal information, and we do not share it for cross-context behavioral advertising. We have not done so in the last 12 months, and we do not sell or share the personal information of anyone under 16. We do not use sensitive personal information to infer characteristics about you.

We keep personal information for as long as we need it for the purposes above. Account information is kept while your account is active and as described in “Retention of Personal Information”. Billing records are kept as long as tax law requires. Website and sending-domain visit data is kept for at least 12 months for security and abuse prevention.

You have the right to:

  • know what personal information we have collected about you, where it came from, why we use it and who we disclose it to, and to get a copy of it;
  • ask us to delete it;
  • ask us to correct it;
  • not be discriminated against for using these rights.

To make a request, email hello@lightmeter.io. We will ask for information to verify your identity, and respond within 45 days. If we need more time, we will tell you, and we can extend this once by up to 45 days. You can use an authorized agent; we will ask for proof of their authority and may ask you to verify your identity directly. If we hold your information on behalf of one of our customers, we will pass your request to them and help them respond.

How Can I Contact Lightmeter About Privacy?

You can send questions or complaints regarding this policy or your personal data to: hello@lightmeter.io. If you believe your rights under the UK GDPR, the Data Protection Act 2018, the EU GDPR or other applicable laws have been violated, you can also lodge a complaint with the relevant data protection authority.

For GDPR-related complaints, European Union users may lodge complaints with their local data protection supervisory authorities.

How Can I Find Out About Changes?

This version of Lightmeter’s privacy policy took effect on the date stated above. Lightmeter may modify the manner in which changes to this policy are announced in future versions, but will ensure that any significant changes are communicated directly to affected users, such as through email or a prominent notice on our website. In the meantime, Lightmeter may update its contact information without announcing a change.