Hyperping is uptime.
SiteLetter is the agency layer.
The deliverable is an email. Hyperping sends weekly reports and incident notices to status-page subscribers, not a branded monthly report addressed to one client about their site. Hyperping is uptime + status pages + on-call for developer teams. SiteLetter is the agency-shaped alternative: per-page Lighthouse, AI visual regression, and a weekly report built to forward, white-label on every site rather than behind a Business tier, at $4.80/site a month with every monitor on.
Also evaluating Better Stack, UptimeRobot, or Pingdom? See those comparisons, or browse all alternatives.
Quick verdict
Both tools are good at the jobs they were built for. The decision comes down to which job your retainer is built around.
Developer teams with status pages and on-call
Engineering teams running production services where on-call rotations, escalation policies, multi-step Playwright transaction checks, and public status pages subscribers can subscribe to are core. Status pages are on every Hyperping tier, on-call is built in.
Also a strong fit if your portfolio is tiny enough to fit in Hyperping's Free tier (up to 20 monitors at $0/mo).
Agencies sending monthly client reports
Web design, development, and marketing agencies on retainer. If what your client asks for is Lighthouse scores they recognise, evidence that nothing broke this week, and a branded weekly or monthly email rather than a status-page URL to bookmark, this is shaped for that.
SiteLetter is priced and shaped for that job. $4.80/site a month with every monitor on covers every monitored page, and the white-label scheduled email report comes with every site at no separate rate.
"Show uptime. Catch downtime. Hyperping combines reliable monitoring from locations worldwide with built-in status pages & on-call."
"Website monitoring for agencies, delivered by email."
What the monthly client report needs beyond status pages and on-call
Hyperping ships excellent uptime, status pages, and on-call. The things below are what the monthly client report is made of, and as of September 6, 2026 Hyperping's published product and pricing pages do not list them at any tier (or gate them to the Business plan, $249/mo billed annually).
Lighthouse on monitored pages, not Playwright scripts
Hyperping runs uptime monitoring plus Playwright transaction checks (3 on Essentials, 10 on Pro, 25 on Business). Lighthouse audits with the four-score breakdown - Performance, Accessibility, SEO, Best Practices - are not in the catalogue at any tier. SiteLetter runs Google Lighthouse on every monitored page across every client site, daily, with DNS, TLS, and CDN cache warmup before each audit so the score is stable enough to ship in the client's monthly report.
Day-over-day screenshot diffs, not Playwright failure traces
Hyperping keeps a record and trace data for each failed Playwright run - useful for a developer debugging a flaky transaction script after the fact. It is not a daily screenshot of the same page compared against the last good capture of it. SiteLetter captures a full-page screenshot of every monitored page on mobile and desktop every 24 hours and runs an AI classifier across each diff big enough to matter. Rotating banners, cookie notices, A/B test variants get dismissed as cosmetic noise. A real layout break, 404'd asset, or hero image that 500s is caught by the next daily scan, flagged in the dashboard, and called out in the report you forward.
$4.80/site a month with every monitor on, not a tier ladder
Hyperping meters by monitor and tiers the price. Both of their rates are given for every rung: the lower one is what their own pricing page labels "billed yearly", the higher one is month to month, and the figures are USD per their terms, and their pricing page shows the same figures with a euro sign to EU visitors. Free covers 20 monitors, Essentials ($24/mo billed annually, $29/mo month to month) covers 50, Pro ($74/mo billed annually, $89/mo month to month) covers 100, Business ($249/mo billed annually, $299/mo month to month) covers 1,000. On uptime the counts stay small either way: SiteLetter probes one page per site, the homepage, so a 5-client portfolio is 5 Hyperping monitors and a 20-client portfolio is 20, both within the 20 that Free covers. Uptime is not where the two tools part company. Lighthouse audits, day-over-day visual diffing, and a scheduled branded client report are not listed on their published pricing or feature pages as of September 6, 2026, at any tier on that ladder. Hyperping's white-label branding is real, but it starts at the Business tier. SiteLetter is $4.80/site a month with every monitor on, with no plan tiers, and white-label reports come with every site at no separate rate.
A report that arrives in the inbox, not a status page to bookmark
Hyperping is status-page-centric: every plan ships a hosted status page, and the paid plans add subscriber lists and incident emails ("we are investigating," "resolved"). What it does not ship is a scheduled monthly report carrying your agency logo, brand colour, and reply-to address. SiteLetter is built around exactly that shape: the finished report lands in your inbox on your cadence and you forward it, and it opens with no login screen and no account to create.
White-label reports on every site, not gated to Business
Hyperping's white-label feature is locked to the Business tier at $249/mo billed annually, $299/mo month to month. Essentials ($24/mo billed annually, $29/mo month to month) and Pro ($74/mo billed annually, $89/mo month to month) do not include white-label, which means agency-shape branding starts at $249/mo billed annually on their ladder. Those figures are USD per their terms, and their pricing page shows the same figures with a euro sign to EU visitors. SiteLetter ships white-label reports per client (your logo, your brand colour, your footer text, your reply-to address, and your agency name as the sender display name) and an org-level toggle that removes the SiteLetter mark and footer from the report body, included with every site, at no separate rate and not gated to a tier. Verify your own domain and the report is sent from your address as well.
One URL to onboard a client, not a per-tier monitor budget
Onboarding a client on Hyperping is configuring monitors one at a time, allocating each against your tier's monitor cap, setting per-monitor alert rules, and configuring a status page if you want one. Onboarding the same client on SiteLetter is pasting one URL. The sitemap is auto-fetched, the 15 most important pages are picked, every monitor turns on, and the report template is pre-built. There are no per-monitor alert rules to repeat, because alert rules live at agency level: write them once and every client and every site inherits them, including the ones you add later.
Feature-by-feature comparison
The full picture, grouped by category. SiteLetter wins on per-page Lighthouse, visual regression, and white-label reports. Hyperping wins on status pages, on-call, Playwright, multi-region, and free-tier uptime. Pick by the deliverable you owe, not by feature count.
| Feature | SiteLetter | Hyperping |
|---|---|---|
| Pricing model | ||
| Pricing unit | 1 site (up to 15 pages) | 1 monitor = 1 URL/host/port |
| Every monitor on | $4.80/site a month (15 pages monitored); less per site if it runs fewer of them | Their ladder: Free $0 (20 monitors); Essentials $24/mo billed annually, $29/mo month to month (50 monitors); Pro $74/mo billed annually, $89/mo month to month (100 monitors); Business $249/mo billed annually, $299/mo month to month (1,000 monitors); USD per their terms, and their pricing page shows the same figures with a euro sign to EU visitors |
| Report branding included | Yes: white-label reports with every site, sent from your own verified domain, at no separate rate | No scheduled report to brand; a custom domain for the status page starts at Essentials ($24/mo billed annually, $29/mo month to month) and white labeling at Business ($249/mo billed annually, $299/mo month to month) |
| Free tier ok for client (commercial) work | 14 days with every monitor on, 1 site | Yes, with conditions (20 monitors free; their terms require authorisation to monitor and written consent to resell, per hyperping.com/terms as of September 2026) |
| Monitoring data retention | 2 years (730 days) for Lighthouse, screenshots, asset checks and reports, the same window for every account; raw uptime check samples roll off after 280 days, with incidents kept alongside the rest of the history | Tiered, per the metric history row on hyperping.com/pricing (September 2026): Essentials 7 days / Pro 14 days / Business 30 days / Enterprise custom |
| Per-page services on a client site | ||
| Uptime checking | Homepage every 1 min from the EU, confirmed from a second region on failure; the other 14 monitored pages are reached daily by the scan, not per minute | 1 monitor per URL; check intervals from 5 min on Free to 20 s on Business, per their pricing page |
| Google Lighthouse audits (Performance / Accessibility / SEO / Best Practices) | Every monitored page, daily, with cache warmup | No |
| AI day-over-day visual regression with classification | Every monitored page, daily, classified | No (traces of failed Playwright runs exist, not day-over-day diffs) |
| Broken asset detection across pages | Every monitored page, daily | Not listed on their published pricing or feature pages |
| Site-level services | ||
| SSL certificate expiry alerts | Yes | Yes |
| Domain expiry alerts | Yes | Not listed on their pricing page or terms (hyperping.com/pricing and hyperping.com/terms, September 2026) |
| DNS monitoring | Not available | Yes, Essentials tier and above (per hyperping.com/pricing, September 2026) |
| Sitemap auto-discovery | Yes (weekly sync) | No (every URL added manually) |
| Public status page | Not available | Yes (every tier; multi-lang; custom domain Essentials+) |
| Multi-step transaction monitoring (Playwright) | No | Yes (3 browser checks Essentials, 10 Pro, 25 Business) |
| On-call rotation + escalation | No | Yes |
| Client-facing reports | ||
| Scheduled client-facing email report | Yes (weekly, bi-weekly, monthly, quarterly) | Weekly reports and incident notices to status-page subscribers; no per-client branded report |
| Per-client branding (logo, color, reply-to) | Yes, included | Business tier only (white-label) |
| Remove vendor branding from the report | Yes, included: white-label reports with every site | Business tier only ($249/mo billed annually, $299/mo month to month) |
| Drag-and-drop report builder | Yes | No (status-page focused) |
| Recipients view reports without a login | Yes - the white-label report renders inside the email, and every report carries a public link that opens without an account. | Public status pages are accessible without login; scheduled report-side delivery is not in the product |
| Channels and platform | ||
| Multi-region probes | 3 regions (EU primary + US verifier + AP tiebreaker), monitoring data stored in the EU; screenshots go to OpenAI in the US under SCCs | 18 global locations, per their uptime and status-page pages |
| Alert channels | Email, Slack | Email, SMS, Phone calls (Pro+), Slack, Discord, Telegram, PagerDuty, OpsGenie, MS Teams, webhooks, per their uptime-monitoring page and the compare table on hyperping.com/pricing (September 2026) |
| Public REST API | Not available | Yes (Monitors, Healthchecks, Status Pages, Incidents, Outages, Maintenance, Reports) |
| Native mobile app | No | No native app is listed on their site: no App Store or Play Store link on their homepage, pricing page, status-page page or footer navigation (checked September 6, 2026) |
Sources: hyperping.com/pricing, terms, uptime-monitoring, status-page, API overview. Verified across their homepage, terms, feature pages and API overview; the pricing ladder was read September 6, 2026.
Which job are you buying for?
Comparing monitor counts flatters whoever wrote the comparison. These are the two questions that actually decide it, at 10 client sites.
For uptime alone, Hyperping is a complete answer
Hyperping's free plan covers 20 monitors, which is twenty client homepages at no cost, plus one basic status page (a custom domain for it starts on Essentials). If uptime and a public status page are the job, they are cheaper and better at it.
SiteLetter can be bought that way too, since uptime is a line item you can switch on without the rest. But uptime alone is not the job this page is about, and pretending otherwise would mean pricing around a comparison you can run yourself in a minute.
Lighthouse, visual change detection, a branded report
Hyperping does not run Lighthouse audits and does not do day-over-day visual change detection at any tier, and its branding story is the status page rather than a scheduled per-client email report. Their white-label sits on a Business tier priced well above anything on this page.
10 client sites with every monitor on, covering up to 150 monitored pages. Prepaid, nothing recurring.
Hyperping figures are the ones that vendor publishes, in the currency they publish them. Verified .
Where Hyperping genuinely wins
Hyperping is a modern, well-engineered product with a status-pages-plus-on-call DNA. If your retainer is built around hosted status pages clients subscribe to, on-call rotations, or programmable transaction monitoring, Hyperping is the better tool today. The wins below are real.
Public branded status pages on every tier
Hyperping is status-page-centric - even the Free tier includes 1 status page, with multi-language support, custom branding, custom domain (Essentials+), and a TV mode for office dashboards. SiteLetter has no status pages today. If a hosted public status page your client can subscribe to is core to your retainer, Hyperping wins.
On-call rotations + incident management
On-call schedules that show every shift across teams and time zones, escalation policies, and phone-call alerts (Pro and above, per their pricing page). If your agency runs an on-call rotation for client infrastructure, this is genuinely useful. SiteLetter has email and Slack alerts; no on-call rotations.
Playwright-based browser checks
Programmable multi-step transaction monitoring in real Chromium browsers, written as Playwright tests in Node.js. Every check keeps a record and trace data for failed runs, for debugging. Useful for ecommerce checkout flows, login funnels, multi-step user journeys. SiteLetter monitors pages individually but does not script multi-step flows.
More probe locations (18 vs SiteLetter's 3 regions)
Hyperping checks from 18 global locations, per its uptime and status-page pages. SiteLetter does multi-region probing too (EU primary, with a US verifier only when a check fails and an AP tiebreaker only when those two disagree), checking the homepage every 1 min, with the remaining monitored pages reached once a day by the daily scan. Monitoring data is stored in the EU. Screenshots go to OpenAI in the US for visual change classification, under EU Standard Contractual Clauses. SiteLetter catches regional outages and suppresses false positives, but at lower geographic granularity than 18 locations.
Generous free tier for tiny portfolios
The Free tier covers 20 monitors with 5-min interval checks and 1 status page, at $0/mo forever. The status-page subscriber list starts on Essentials (100 there, 1,000 on Pro), so a Free status page is one your client visits rather than one they subscribe to. For a tiny agency (or pre-revenue side project) running pure homepage uptime on up to 20 client sites, that is genuinely usable. SiteLetter starts you with 14 days of full monitoring on one site, then you buy credits.
Status-page emails can leave from your own domain
Hyperping's published pricing lists "Custom domain emails" on its Business plan ($249/mo billed annually, $299/mo month to month; USD per their terms, and their pricing page shows the same figures with a euro sign to EU visitors; checked September 6, 2026), described there as status notifications sent from your own email domain, so that client-facing mail can come from your agency's own sending domain. SiteLetter's reports are white-label on every site: your logo, your brand colour, your reply-to address, and your agency name as the sender, with the SiteLetter name taken off by one toggle, sent from your own domain once you verify it. The two cover different mail: theirs is the status notification a subscriber signed up for, and SiteLetter has no status page at all, so on that surface this stays theirs.
Public REST API + mature integrations
Public REST API (Monitors, Healthchecks, Status Pages, Incidents, Outages, Maintenance, Reports) with read-and-write or read-only keys. Integrations with Slack, Discord, Telegram, PagerDuty, OpsGenie, Microsoft Teams, webhooks, per their uptime-monitoring page and the compare table on hyperping.com/pricing (September 2026). SiteLetter has email and Slack, and no public API today.
When to pick which
Two honest scenarios.
Agencies sending client reports
Web design, development, and marketing agencies who want Lighthouse on every monitored page, AI day-over-day visual regression, and a weekly report built to forward. It is white-label on every site, at no separate rate and with no Business-tier upcharge. Monitoring is $4.80/site a month with every monitor on. Even at small portfolios, the deliverable shape is what Hyperping does not ship.
Dev team with status pages + on-call
Engineering teams running production services. On-call rotations, escalation, Playwright transaction checks, public status pages your customers subscribe to. Hyperping is built for this; SiteLetter does not ship on-call or status pages today.
SiteLetter vs Hyperping: FAQ
No. Hyperping ships uptime monitoring (HTTP / host / port), Playwright browser checks (a programmable transaction monitor), and status pages. It does not run Google Lighthouse audits with the four-score breakdown (Performance / Accessibility / SEO / Best Practices) per monitored page. SiteLetter runs full Lighthouse on every monitored page on every site daily with cache warmup, and the scores ship in the weekly client report.
No. Hyperping keeps a record and trace data for failed Playwright browser-check runs (useful for debugging a flaky transaction), but it does not screenshot every monitored page daily and diff against yesterday with AI classification. SiteLetter does: a daily screenshot of every monitored page is compared to the last good capture, normally the previous day's, and AI classifies each diff big enough to matter as noise (rotating banners auto-dismissed), intentional update (logged in the weekly report), or real breakage (missing images, layout collapse, flagged in the dashboard and called out in the report you forward).
Not in the SiteLetter sense. Their pricing page does list a "Weekly reports" row and a reporting dashboard, and status-page subscribers get incident alerts when your client signs up for them. What is not there is a scheduled per-client report carrying your agency logo, brand colour and reply-to address, addressed to that one client and covering only their site. SiteLetter is built around that flow.
It covers a different surface. On their published pricing (checked September 6, 2026) a custom domain for the status page starts at Essentials ($24/mo billed annually, $29/mo month to month), so that much is not gated to Business, and their branded artifact is the status page your client visits. SiteLetter's is a scheduled report that lands in an inbox, white-label for each client, at $4.80/site a month with every monitor on. On the sending address: Hyperping's published pricing lists "Custom domain emails" on its Business plan ($249/mo billed annually, $299/mo month to month; USD per their terms, and their pricing page shows the same figures with a euro sign to EU visitors; checked September 6, 2026), described there as status notifications sent from your own email domain, so that client-facing mail can come from your agency's own sending domain. SiteLetter's reports are white-label on every site: your logo, your brand colour, your reply-to address, and your agency name as the sender, with the SiteLetter name taken off by one toggle, sent from your own domain once you verify it.
It depends on which of two questions you are asking. If homepage uptime is all you need, Hyperping's Free plan covers 20 monitors at $0/mo and is genuinely cheaper. The moment a client expects a monthly report with Lighthouse trends and visual change detection, Hyperping does not ship that, so there is no Hyperping plan to price against. SiteLetter at 10 client sites with every monitor on is $48.00/month, covering 150 monitored pages of Lighthouse and visual change detection. The honest framing: Hyperping is per-monitor pricing for status-page-centric DevOps; SiteLetter is per-site pricing for agency client reports.
Public branded status pages on every tier (Hyperping is status-page-centric; SiteLetter does not offer status pages). On-call rotations with escalation policies, shown across teams and time zones. Playwright browser checks (programmable multi-step transaction monitoring, with trace data kept for failed runs). Checks from 18 global locations (vs SiteLetter's 3 regions: EU primary + US verifier + AP tiebreaker, monitoring data stored in the EU; screenshots go to OpenAI in the US under SCCs). Phone-call alerts on Pro and above (their Business plan inherits Pro's list on the pricing page). A public REST API. A lightweight server agent reporting CPU, memory, disk and network. Cron job monitoring and maintenance windows on every paid tier. Separate workspaces per client, listed as Projects on their pricing page, each with its own monitors, status pages and team. If your agency runs on-call rotations for client infrastructure, or your retainer depends on public status pages your client can subscribe to, Hyperping is the better tool today.
Per-page Google Lighthouse on every monitored page daily with DNS/TLS/CDN cache warmup (Hyperping is uptime + status pages, no Lighthouse audits). AI day-over-day visual regression that classifies each diff big enough to matter as noise / intentional / breakage (Hyperping keeps traces of failed Playwright runs, not continuous day-over-day classified diffing). White-label scheduled per-client email reports with per-client logo, brand color, reply-to (Hyperping has status-page subscriber alerts, not scheduled per-client deliverables). Sitemap auto-discovery: add a domain, SiteLetter picks the 15 most important pages and every monitor turns on for them (Hyperping is per-monitor manual definition). Report branding included with every site, at no separate rate and with no tier upcharge (Hyperping brands the status page, not a scheduled per-client report); monitoring is $4.80/site a month with every monitor on.
Yes, with a nuance. Hyperping's terms prohibit "Use the Services to monitor websites or services you do not own or have authorization to monitor" - so agencies with client authorisation are fine (which is the normal arrangement). Separately, their terms list "Resell, sublicense, or redistribute the Services without our prior written consent" among prohibited uses, so reselling or sublicensing Hyperping as part of an agency offering needs their prior written consent (checked September 2026). This is not legal advice - check the current terms.
SiteLetter keeps 2 years (730 days) of Lighthouse scans, screenshots, asset checks and reports, the same window on every account. Raw uptime check rows roll off after 280 days; uptime incidents are kept with the rest of the history. Hyperping retention is tier-gated, per the metric history row on hyperping.com/pricing (September 2026): 7 days on Essentials, 14 days on Pro, 30 days on Business, custom on Enterprise. For agencies showing month-over-month or year-over-year client trends, SiteLetter's 2-year uniform retention is meaningfully longer.
Yes. Each SiteLetter site covers up to 15 pages automatically (sitemap-discovered and ranked by depth, sitemap priority, and recency), so a 100-monitor Hyperping setup packs into 7 SiteLetter sites when every site is filled to the 15-page cap, and more than that as the same pages spread across more domains. That arithmetic assumes those monitors are extra pages of domains you already cover: the collapse is per domain, not per monitor. A hundred monitors sitting on a hundred separate client homepages stays a hundred SiteLetter sites. Add each unique site once and SiteLetter handles the rest: page selection, every monitor switched on, weekly and monthly client report templates pre-built. The per-monitor alert setup does not come with you: alert rules are written once at agency level and inherited by every site you bring over. New accounts get 14 days of full monitoring on one site with no card, so you can validate the full experience on one client site before bringing the rest over.
Still have questions? Get in touch.
Comparison based on publicly available Hyperping pricing and feature documentation, last verified . Hyperping is a trademark of its respective owner, used here for identification and comparison purposes only. SiteLetter is independent and not affiliated with, sponsored by, or endorsed by Hyperping. For the most current Hyperping pricing and feature information, see hyperping.com.
You set up care-plan reporting once.
After that it runs without you.
SiteLetter is the kind of tool you forget you're using, until your client thanks you for the report you didn't write.
- ✓ Just add a domain. SiteLetter auto-discovers pages, starts monitoring, schedules reports. You pick your alert rules and who gets each report.
- ✓ No scripts to install. SiteLetter monitors from the outside, like a real visitor.
- ✓ Nothing recurring. No subscription, no contract. You buy credits when you want them and each site spends its own.