Terms of Service

These Terms of Service ("Terms") govern your use of SiteLetter, a website monitoring service operated by Donatas Petrauskas under individuali veikla (individual activity) registered in Lithuania, registration number 1534445 ("SiteLetter").

By creating an account or using SiteLetter at siteletter.com (the "Service"), you agree to these Terms. If you do not agree, do not use the Service.

1. The Service

SiteLetter provides automated website monitoring, including:

• Lighthouse performance, accessibility, SEO, and best practices audits
• Visual screenshot monitoring and change detection
• SSL certificate and domain expiry monitoring
• Uptime monitoring
• Broken link detection
• Email alerts and scheduled reports

SiteLetter may modify, add, or discontinue features at any time. SiteLetter will make reasonable efforts to notify you of material changes.

2. Accounts

• You must provide accurate and complete information when creating an account.
• You are responsible for maintaining the security of your account credentials.
• You must be at least 18 years old to use the Service.
• One person or organization may not maintain more than one account in order to claim the free starting credits more than once.
• You are responsible for all activity that occurs under your account.

3. Acceptable Use

You agree not to:

• Use the Service to monitor websites you do not own or have authorization to monitor.
• Attempt to overload, disrupt, or interfere with the Service or its infrastructure.
• Use the Service for any unlawful purpose or in violation of any applicable law.
• Reverse-engineer, decompile, or attempt to extract the source code of the Service.
• Resell or redistribute the Service without SiteLetter's written permission. Including SiteLetter's monitoring and its reports in a care plan or retainer you sell to your own clients is the intended use and needs no separate permission. What this covers is reselling access to the Service itself, such as sub-letting accounts or offering SiteLetter as your own monitoring product.
• Create multiple accounts to circumvent account limits or to claim the free starting credits more than once.
• Use automated means to create accounts or interact with the Service.

SiteLetter reserves the right to suspend or terminate accounts that violate these terms.

4. Credits and Payment

4.1 Free Starting Credits

A new account receives 224 credits, which funds one site with every unit switched on for 14 days, and is spent at the rates published on the pricing page. No credit card is required to open an account or to spend these credits. SiteLetter may limit the free starting credits to one grant per person or organization.

4.2 How Credits Are Charged

• There is no subscription. You buy credits in advance, and SiteLetter debits them once per day, per monitored website, for each monitoring service that website has switched on.
• The rate for each service is the one published on the pricing page, and it is charged per day. Switching a service off for a website stops that charge from the following day. Page Scores and Content Health run on the daily page visit Visual Changes makes, so switching Visual Changes off switches those two off with it.
• Credits are bought through Stripe in US dollars, in the packs published on the pricing page. Any tax due is calculated at the point of purchase; spending credits is not a separate taxable event.
• Credits do not expire while your account is open. No payment method is stored and nothing is charged on a recurring basis.

4.3 Running Out, and Your History

• There is nothing to cancel. If your balance reaches zero, monitoring stops for the websites that were still switched on.
• Your existing scan history, screenshots, Lighthouse scores and past reports remain accessible in read-only mode after monitoring stops. Nothing is deleted because a balance ran out; deletion follows the retention windows in the Privacy Policy.
• Adding credits resumes monitoring as soon as the next check for that website is due, which is often the same day, and a day on which monitoring runs is charged for. SiteLetter does not back-charge for days on which nothing was measured.

4.4 Refunds

• Within 14 days of buying a pack of credits, that pack is refundable for the cash value of its unspent credits, priced at what that pack charged for them.
• Monitoring already delivered is kept and paid for, so credits already spent are not refundable. Nothing is returned once a pack is fully spent.
• After the 14-day window, unspent credits are not refundable.
• Credits are forfeited if you delete your account.

4.5 Price Changes

SiteLetter may change its rates at any time. The current rates are always the ones published on the pricing page, and that page changes whenever a rate changes, so checking it is the reliable way to see what the Service costs. Because nothing renews, a rate change can never charge you again without a further purchase: credits you have already bought remain yours, and a new rate only affects what your existing balance buys from the day it takes effect. You may switch any service off, for any website, at any time, and that stops its charge from the following day. Page Scores and Content Health run on the daily page visit Visual Changes makes, so switching Visual Changes off switches those two off with it.

5. Website Monitoring

• You may only add websites that you own or have explicit authorization to monitor.
• SiteLetter's monitoring tools access your websites using standard HTTP requests and headless browsers. The screenshot capture presents an ordinary Chrome user agent rather than identifying itself as SiteLetter, so it will appear in your logs as a normal browser visit, not as a named crawler.
• SiteLetter respects robots.txt directives when discovering pages via sitemap. The homepage is the one exception: SiteLetter monitors the root URL even where robots.txt disallows it, so a monitored site does not drop to zero pages. SSL and domain-expiry checks use only your certificate and public WHOIS/RDAP records. Where the uptime service is switched on for a website, its checks request your homepage once a minute and no other page. Every other monitored page is scanned once a day. A scan loads the page more than once (a screenshot and a Lighthouse audit, on mobile and on desktop) and requests the links and images that page references. SiteLetter does not crawl beyond that list.
• SiteLetter stores screenshots, scan results, and performance data per monitored website, not per account. One set of measurements is produced for each website and every account monitoring it reads the same records; SiteLetter does not duplicate them per customer. Your account list, settings, alert rules, report schedules and branding are private to you.
• SiteLetter automatically selects pages to monitor from your website's sitemap and from the links on your homepage, up to the per-website page limit published on the pricing page.

If you use the Service on behalf of a third party (for example, an agency monitoring a client's website), you confirm that you have authority to do so. For any personal data collected from websites you monitor, or from recipients you add, whether by invitation or by confirming that you already have permission to email them, you are the data controller and SiteLetter acts as your data processor. A Data Processing Agreement (DPA) covering this relationship is being prepared. It is drafted but has not been through legal review, so it is not available to sign yet. Email support@siteletter.com if you need one and SiteLetter will tell you where it stands. Your controller role and SiteLetter's processor role apply whether or not a DPA has been signed.

Agency branding: SiteLetter offers optional agency branding that removes the default SiteLetter logo and name from scheduled reports and public report pages and displays your agency's logo, wordmark, and brand color in their place. Report emails also carry your agency name as the sender display name and your address as the reply-to. Alert emails are not branded and still carry the SiteLetter mark, and they are always sent from a siteletter.com address. Scheduled reports and report previews are also sent from a siteletter.com address unless you verify a sending domain of your own, in which case they are sent from the address you configure on that domain. All other email, including account and sign-in email, team and recipient invitations, billing notices and alerts, is always sent from a siteletter.com address. Agency branding and a verified sending domain are presentation and delivery settings only. They do not change the underlying legal relationship between you, your clients, and SiteLetter, do not transfer or alter the controller and processor responsibilities described above, and do not change how monitoring data is collected, processed, or stored. You are solely responsible for the content of any logo, wordmark, or brand color you configure, including ensuring you have the right to use them and that they do not infringe third-party rights or mislead recipients about the nature of the Service.

Sending from your own domain: If you verify a domain you control, SiteLetter sends your scheduled reports from an address on that domain, signed with keys you publish in your DNS. By verifying a domain you confirm that you are entitled to send email as it, and you authorise SiteLetter to do so on your behalf until you remove it. While a verified domain is unavailable, suspended or released, those reports are sent from a siteletter.com address instead.

Adding a recipient by confirmation: With a verified sending domain you may add a report recipient by confirming that you have their permission, in place of sending them an invitation. When you do, you warrant that the permission is genuine and that you are able to evidence it, and you remain responsible for it. SiteLetter records the wording you agreed to, which member of your team agreed to it, and when. Scheduled reports carry no unsubscribe link: the reply-to address on your reports is how a recipient asks you to stop, you are responsible for keeping a monitored address there, and you must honour such a request. SiteLetter may suspend a sending domain or refuse further recipients where reports from it generate repeated spam complaints.

6. Data and Privacy

Your privacy is important to SiteLetter. SiteLetter's Privacy Policy explains how SiteLetter collects, uses, and protects your personal data. By using the Service, you agree to SiteLetter's Privacy Policy.

• You retain ownership of your website content. SiteLetter claims no ownership over the websites you monitor.
• You grant SiteLetter a limited license to access, screenshot, and analyze your websites solely for the purpose of providing the Service.
• You may delete your account and its data from your account settings. If you are the sole owner of an organization that still has other team members, transfer ownership before deleting.

7. Availability and Support

• SiteLetter aims to keep the Service available 24/7 but does not guarantee uninterrupted access.
• SiteLetter may perform scheduled maintenance that temporarily affects availability.
• Scan results depend on third-party tools (Lighthouse, headless browsers) and may vary. SiteLetter does not guarantee the accuracy of any specific scan result.
• Support is provided via email at support@siteletter.com.

8. Intellectual Property

The Service, including its design, code, features, and documentation, is owned by SiteLetter and protected by intellectual property laws, except for third-party open-source components, which remain the property of their authors and are licensed under their own terms. You may not copy, modify, or distribute any part of the Service without SiteLetter's written permission. This clause does not apply to customer data, which you retain in full as described in Section 6.

The SiteLetter name and logo are SiteLetter's trademarks. You may not use them without SiteLetter's prior written consent.

9. Limitation of Liability

To the maximum extent permitted by law:

• The Service is provided "as is" and "as available" without warranties of any kind, whether express or implied.
• SiteLetter does not warrant that the Service will be error-free, uninterrupted, or that scan results will be accurate or complete.
• SiteLetter is not liable for any indirect, incidental, special, consequential, or punitive damages, including loss of revenue, data, or business opportunities.
• SiteLetter's total liability to you for any claims arising from or related to the Service shall not exceed the amount you paid SiteLetter in the 12 months preceding the claim.

Nothing in these Terms excludes or limits liability that cannot be excluded or limited under applicable law, including liability for fraud or willful misconduct.

10. Indemnification

You agree to indemnify and hold SiteLetter harmless from any claims, damages, or expenses (including reasonable legal fees) arising from:

• Your use of the Service
• Your violation of these Terms
• Your monitoring of websites you are not authorized to monitor

11. Termination

• You may close your account at any time through your account settings.
• SiteLetter may suspend or terminate your account if you violate these Terms, with or without notice depending on the severity of the violation.
• Upon termination, your right to use the Service ceases. SiteLetter will delete your data in accordance with SiteLetter's Privacy Policy.

12. Governing Law and Disputes

These Terms are governed by the laws of the Republic of Lithuania. Any disputes shall be resolved in the courts of Lithuania, unless EU consumer protection regulations require otherwise.

If you are an EU consumer, you may also take a dispute to a consumer dispute-resolution body. In Lithuania that is the State Consumer Rights Protection Authority (VVTAT). Consumers in other EU countries can use the equivalent body in their own country.

13. Changes to These Terms

SiteLetter may update these Terms from time to time. The current version is always the one published on this page, and the "Last updated" date at the top of the page changes whenever the text changes, including for material changes. Checking that date is the reliable way to see whether these Terms have changed.

Your continued use of the Service after an update constitutes acceptance of the updated Terms. If you do not agree with an update, stop using the Service and close your account from your account settings.

14. Contact

If you have questions about these Terms, reach out at support@siteletter.com.