Skip enterprise IT observability.
SiteLetter fits agencies.
Site24x7 is enterprise IT observability with servers, APM, Kubernetes, and logs across a multi-line add-on pricing matrix. If your monitoring need is "agency-shaped" - per-page Lighthouse, AI visual regression, a branded weekly report your client opens - Site24x7 is overkill and the wrong shape. SiteLetter is built for exactly that job, at $5/site flat.
Also evaluating Pingdom, Better Stack, or UptimeRobot? 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.
Enterprise IT, MSPs, full observability needs
Teams running production infrastructure that need every observability layer (servers, APM, Kubernetes, network, logs, RUM, cloud cost) in one vendor. MSPs managing infrastructure for multiple clients can use the MSP plan ($54/mo for 9 customers) for white-label rebranding.
Also a good fit if you already run on Zoho and want monitoring inside the same vendor ecosystem.
Agencies sending monthly client reports
Web design, development, and marketing agencies on retainer. Your client wants a recognisable Lighthouse score, evidence that nothing broke this week, and a single email each month that says "everything is healthy" - branded with your agency, not your monitoring vendor.
SiteLetter is priced and shaped for that job. $5/site covers every monitored page with full per-page service coverage, branded scheduled reports, and white-label - all in the base price, no MSP tier required.
"AI-powered monitoring for modern IT."
"Website monitoring for agencies, delivered by email."
What Site24x7 does not ship (that agencies need)
Site24x7 ships excellent infrastructure monitoring. The things below are either missing, gated to the MSP plan, or buried under add-on math that makes pricing hard to predict for agency client work.
Lighthouse with the four-score breakdown, not RUM-bundled Core Web Vitals
Site24x7's performance signals are split across products: "webpage speed" checks on configured URLs, Core Web Vitals via the RUM add-on at $25/500K pageviews. There is no Lighthouse Performance, Accessibility, SEO, and Best Practices breakdown per monitored page anywhere in the catalogue. SiteLetter runs the full Lighthouse on every monitored page across every client site daily, with DNS, TLS, and CDN cache warmup before each audit - all in the base $5/site, no RUM add-on, no per-pageview meter.
Day-over-day diffs for agencies, not defacement monitoring for security teams
Site24x7 ships "website defacement monitoring" that watches for unauthorised changes - a security framing, useful if you are worried about a hack. It is not a daily screenshot diff across every monitored page that an agency would use to catch a deploy breaking the contact form, a CDN dropping product images, or a 404'd stylesheet on the FAQ. SiteLetter ships exactly that shape: one screenshot per monitored page every 24 hours, an AI classifier that filters cosmetic noise (rotating banners, cookie variants), and an email within the hour when something actually breaks.
$5/site flat, not an a-la-carte enterprise matrix
Site24x7 meters per monitor across separate product lines: Website Monitoring at $0.36/site, RUM at $25/500K pageviews, Synthetic at $8/10K runs, APM at $8/instance, Server at $2.50/VM, Logs by GB, then the MSP plan layered above all of that. Decoding the cost of monitoring one client site means adding rows from a spreadsheet. SiteLetter is $5/site flat, every monitoring service included, no resource counts to track.
Branded client reports without MSP-tier gating
Site24x7's white-label rebranding (custom platform name, logo, URL) is locked to the MSP plan ($54/mo for managing 9 customers). Branded scheduled client reports tied to that plan have limited scope (15 websites total for 9 customers in the base MSP plan). SiteLetter ships per-client branded email reports, org-level white-label, and the recipient confirm flow included at $5/site, no MSP-tier gating.
Single agency-shaped plan, not a sprawling product matrix
Site24x7 has separate product lines for Website Monitoring, Server Monitoring, APM, Synthetic Transactions, Real User Monitoring, Network Monitoring, Logs, Kubernetes, Cloud Cost Management, and StatusIQ status pages - each priced separately with its own quotas. Agencies evaluating a tool spend more time decoding the pricing matrix than the wedge it solves. SiteLetter is one product, one plan, every monitoring service included.
URL in, monitoring up, no quotas to allocate
Onboarding a client on Site24x7 means picking which monitor type each URL needs (Website, Web Page Speed, Synthetic, RUM if applicable, plus DNS, SSL, server agents if applicable), then allocating each against the relevant product-line quota, then per-monitor alert rules. Onboarding the same client on SiteLetter is pasting one URL. The sitemap is auto-fetched, the 15 most important pages are picked, every monitoring service turns on, alert rules seed themselves (SSL escalation 30/14/7/3/1 days, domain expiry, uptime retry verification, Lighthouse threshold), and the report template is pre-built.
Feature-by-feature comparison
The full picture, grouped by category. SiteLetter wins on per-page services and agency-shaped reports. Site24x7 wins on infrastructure layers, channel breadth, mobile apps, and multi-region. Pick by what your monitoring is for, not by feature count.
| Feature | SiteLetter | Site24x7 |
|---|---|---|
| Pricing model | ||
| Pricing unit | 1 site (up to 15 pages) | Per-monitor across multiple product lines + a-la-carte add-ons (Website Monitoring $0.36/site, RUM $25/500K pageviews, Synthetic $8/10K runs, Logs by GB, etc.) |
| Cheapest commercial plan | $5/site (15 pages monitored, all features) | Free Forever (50 resources, basic alerts); Web Uptime $9/mo annual (25 websites, basic uptime tier with 1-min polling + 32 locations); Web Perf $36/mo (40 websites + 100K page views); Enterprise Plus Web $899/mo |
| Free tier ok for client (commercial) work | 14-day free trial, 1 site | Yes (Free Forever tier; 50 resources) |
| White-label / agency-shape plan | Yes, included at $5/site | MSP plan $54/mo for 9 customers (white-label rebrand + multi-customer); base allocation 15 websites total |
| Monitoring data retention | 2 years (730 days) across all data types, all subscribers | 30 days raw on Starter; varies by tier (specifics behind support portal) |
| Per-page services on a client site | ||
| Per-page uptime | Yes, 15 pages per site (homepage every 1 min + 14 subpages every 15 min) | Per-monitor (1 URL = 1 monitor); 1-min polling on entry tier, 30-sec on Enterprise Plus |
| Google Lighthouse audits (Performance / Accessibility / SEO / Best Practices) | Every monitored page, daily, with cache warmup | No native Lighthouse with 4-score breakdown; Core Web Vitals tracked via RUM (separate add-on) |
| AI day-over-day visual regression with classification | Every monitored page, daily, classified | No (defacement monitoring exists for security; not a daily visual diff with AI classification) |
| Broken asset detection across pages | Every monitored page, daily | Not in product as a per-page check |
| Site-level services | ||
| SSL certificate expiry alerts | Yes | Yes |
| Domain expiry alerts | Yes | Yes (via DNS monitoring) |
| Sitemap auto-discovery | Yes (weekly sync) | No (Deep Discovery for Internet Services is for protocols, not page-level) |
| Public status page | Coming soon | Yes (StatusIQ, separate product; 3-100 branded pages by plan) |
| Multi-step transaction monitoring | No | Yes (Synthetic Transactions add-on, $8/10K runs) |
| Real User Monitoring (RUM) | No | Yes (separate product, $25/500K pageviews) |
| Server / APM / Kubernetes / network monitoring | No | Yes (separate product lines with per-resource pricing) |
| Reports your clients receive | ||
| Scheduled client-facing email report | Yes (weekly, bi-weekly, monthly, quarterly), included | SLA / performance reports schedulable; full client-branded email reports tied to MSP plan |
| Per-client branding (logo, color, reply-to) | Yes | MSP plan only (rebrand platform / logo / URL) |
| Org-level white-label (hide vendor name) | Yes, included | MSP plan only |
| Drag-and-drop report builder | Yes | No (templated reports) |
| Recipients view reports without a login | Yes (new external recipients confirm once; team members skip it) | StatusIQ public pages, accessible without login; scheduled client emails tied to MSP plan |
| Channels and platform | ||
| Multi-region probes | 3 regions (EU primary + US verifier + AP tiebreaker), all data stored in EU | 130+ cities globally; per-plan included locations 8-32 |
| Alert channels | Email, Slack | SMS, email, Slack, MS Teams, PagerDuty, push, phone calls, Jira, ServiceNow, webhooks |
| Public REST API | Coming soon | Yes |
| Native mobile app | No | Yes (iOS, Android, plus separate StatusIQ app) |
| Server / APM / Logs / Network monitoring | No | Yes (separate product lines) |
Sources: site24x7.com/site24x7-pricing, website-monitoring, msp, statusiq. Verified .
Cost at your portfolio size
Drag the slider to your client portfolio size. Site24x7 has many product lines with separate add-on pricing; this calculator shows the two reference points most relevant for agencies: their MSP plan (agency-shaped with white-label) and their Web Uptime entry tier (cheapest basic uptime option). Site24x7 cards are flat-tier prices that hold until you exceed each tier's website cap.
Site24x7 pricing in USD annual rate per their public pricing page. Many additional product lines (Server Monitoring, APM, Kubernetes, Network, Logs, RUM, StatusIQ, Cloud Cost) are priced separately.
Reading these numbers honestly
Site24x7 Web Uptime wins on cheapest entry price. $9/mo for 25 sites of homepage uptime is meaningfully cheaper than SiteLetter at the same volume. For agencies whose monitoring need ends at "the homepage is up," Site24x7 entry wins on dollars.
SiteLetter wins on agency-feature shape. Branded scheduled client reports and white-label are in every SiteLetter plan; Site24x7 gates white-label to the MSP plan at $54/mo, and even MSP base covers only 15 websites for 9 customers. Per-page Lighthouse and AI day-over-day visual regression are not in Site24x7 at any tier. The cost calculator only counts Site24x7's website-monitor pricing; the agency-shaped stack (MSP + StatusIQ + Synthetic add-ons + RUM) compounds beyond the headline.
Cost at common portfolio sizes
Both Site24x7 reference points are fixed at their base pricing - MSP plan covers up to 9 customers / 15 websites at $54/mo; Web Uptime entry covers up to 25 websites at $9/mo. Beyond those caps, additional websites and customers add per-resource cost.
| Client sites | SiteLetter | Site24x7 MSP plan | Site24x7 Web Uptime (homepage) |
|---|---|---|---|
| 5 | $25/mo | $54/mo | $9/mo |
| 10 | $50/mo | $54/mo | $9/mo |
| 20 | $100/mo | $54/mo | $9/mo |
Source: site24x7.com/site24x7-pricing, verified .
Where Site24x7 genuinely wins
Site24x7 is a mature enterprise observability platform backed by Zoho. If your team runs production infrastructure for clients and needs the full stack in one vendor, or you are an MSP with infrastructure management as part of your service, Site24x7 covers ground SiteLetter does not. The wins below are real.
Full enterprise observability stack in one vendor
Server monitoring (installed agents with CPU / RAM / disk thresholds), Application Performance Monitoring with code-level traces, Kubernetes monitoring, network device monitoring, log management with cold storage, cloud cost management. If your team runs production infrastructure for clients and needs every observability layer in one platform, Site24x7 covers ground that SiteLetter does not touch.
130+ probe locations (vs our 3)
Site24x7 probes from 130+ cities globally, with per-plan included location counts from 8 to 32. SiteLetter does triangulated multi-region probing too (EU primary + US verifier + AP tiebreaker, with all data stored in EU) on a flat 1-min cadence. We catch regional outages and suppress false positives, but at lower geographic granularity than 130+ cities. If your client base is geographically spread and you need that level of vantage-point diversity, Site24x7 still wins on raw count.
MSP plan for managed-service providers
Site24x7's MSP plan ($54/mo for 9 customers in base, scaling with customer count) includes white-label rebranding (custom platform name, logo, URL) and multi-customer organisation. Genuinely useful for MSPs running infrastructure for many clients. The trade-off: base allocation is 15 websites total across 9 customers, with add-ons for higher counts.
Native iOS and Android mobile apps
Site24x7 ships native mobile apps with push notifications, plus a separate StatusIQ mobile app. SiteLetter is browser-only today; alerts arrive by email and Slack. If your on-call shift relies on phone push notifications, Site24x7 wins.
Public REST API + integrations breadth
Site24x7 has a mature public REST API across all plans and integrates with Slack, Microsoft Teams, PagerDuty, ServiceNow, Jira, push notifications, phone calls, SMS, webhooks. SiteLetter ships email and Slack today; the public API is on the post-launch roadmap.
Backed by Zoho
Site24x7 is part of Zoho Corporation, a long-tenured private company (founded 1996) with thousands of employees and millions of business customers. Enterprise procurement teams that require a long-established vendor with cross-product breadth have a clear reason to pick Site24x7. SiteLetter is a newer independent product.
For IT teams, MSPs running infrastructure, and any agency that already lives inside the Zoho ecosystem, Site24x7 remains the better tool today. We say that here because we mean it.
When to pick which
Three 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 branded weekly report your client opens. $5/site flat, no MSP tier required, no add-on math.
Enterprise IT or MSP running infrastructure
Your monitoring need is production servers, APM, Kubernetes, network devices, and logs in one vendor. SiteLetter does not run server-side agents or infrastructure monitoring.
SiteLetter vs Site24x7: FAQ
Not as a Lighthouse-branded audit with the four-score breakdown (Performance / Accessibility / SEO / Best Practices). Site24x7 tracks Core Web Vitals and webpage speed metrics inside its Real User Monitoring product, and runs a "webpage speed" check on configured URLs, but it does not surface a Lighthouse audit per monitored page the way a developer would recognise it. SiteLetter runs full Lighthouse on every monitored page on every site daily with DNS/TLS/CDN cache warmup, and the four-score breakdown plus Core Web Vitals (LCP, INP, CLS) ships in the weekly client report.
No. Site24x7 ships a "website defacement monitoring" feature that watches for unauthorised content changes (a security framing), but it does not screenshot every monitored page once a day and diff it against yesterday's screenshot with AI classification. SiteLetter does: a daily screenshot of every monitored page is compared to the previous day and AI classifies each diff as noise (rotating banners auto-dismissed), intentional update (logged in the weekly report), or real breakage (missing images, layout collapse, emailed immediately).
Partially. Site24x7 schedules SLA and performance reports and ships a separate product (StatusIQ) for branded public status pages with custom domains. Full per-client branded scheduled email reports as an agency-facing deliverable are tied to their MSP plan ($54/mo for managing 9 customers, with white-label rebrand of platform and reports). SiteLetter's flat $5/site includes scheduled branded email reports for every client recipient with per-client logo, brand color, reply-to address, and a one-click confirm flow for new external recipients - no separate MSP tier required.
It depends on which Site24x7 plan you compare against. For basic uptime, their Web Uptime tier at $9/mo annual covers 25 websites with 1-min polling and 32 locations - cheaper than SiteLetter at the same scale, but uptime only. For agency-shape (white-label client reports across multiple customers), their MSP plan starts at $54/mo for 9 customers but caps at 15 websites and requires add-ons for higher counts. Site24x7's a-la-carte add-on model means real cost depends on which checks, servers, RUM pageviews, and log volume you turn on. SiteLetter at $5/site is flat: every feature included, no add-on math, no separate gating for white-label or scheduled reports.
A lot, but most of it is for IT teams not agencies: server monitoring with installed agents (CPU, RAM, disk), Application Performance Monitoring (APM with code-level traces), Kubernetes monitoring, network device monitoring, cloud cost management, log management with cold storage, 130+ probe locations worldwide, native iOS and Android mobile apps, and public status pages (StatusIQ). They are an "AI-powered monitoring for modern IT" platform (their words) - the full enterprise observability stack in one vendor. SiteLetter monitors public-facing pages externally and ships the agency client deliverable; we do not run server-side agents, APM, log management, or any infrastructure-layer monitoring.
Per-page Google Lighthouse on every monitored page daily with DNS/TLS/CDN cache warmup (Site24x7 has Core Web Vitals via the separate RUM add-on but no native Lighthouse four-score breakdown on monitored URLs). AI day-over-day visual regression that classifies each diff as noise / intentional / breakage (Site24x7 has "website defacement monitoring" for unauthorised content changes, not a daily visual diff with AI classification). Branded scheduled per-client email reports with per-client logo, brand color, reply-to, and white-label - all included at $5/site (Site24x7 gates white-label rebranding to the MSP plan with a base allocation of 15 websites across 9 customers). Sitemap auto-discovery: add a domain, SiteLetter picks the 15 most important pages and seeds monitoring rules (Site24x7 is per-monitor manual across multiple product lines with separate quotas).
The MSP plan addresses parts of the agency need (white-label rebranding, multi-customer organisation) but its monitoring scope is built for MSPs running infrastructure for clients, not web design agencies running monitoring on client websites. The base MSP plan covers 9 customers with 15 websites total - enough for 1-2 sites per customer, not 15 pages of in-depth per-page coverage. White-label is locked to that plan, and pricing scales with customer count plus per-resource add-ons. SiteLetter is built around the agency monitoring-deliverable from the ground up: white-label is in every plan, branded scheduled email reports are in every plan, and you get 15 pages per site at $5/site with no MSP-tier gating.
SiteLetter keeps 2 years (730 days) of monitoring data across uptime, Lighthouse, screenshots, asset checks, and reports - uniform across every subscriber, no tier gating. Site24x7's Starter plan publishes 30 days of raw retention, with higher tiers extending; specifics by tier are partially behind their support portal. For agencies that need long-tail history to show year-over-year client trends, the SL claim is stronger AND uniform.
Yes, and the SiteLetter setup is shorter than the original Site24x7 one. Each SiteLetter site covers up to 15 pages automatically (sitemap-discovered and ranked by depth, sitemap priority, and recency), so a 100-monitor Site24x7 Web Uptime setup typically collapses into 7-10 SiteLetter sites. Add each unique site once and SiteLetter handles the rest: page selection, every monitoring service enabled, smart alert rules seeded, branded weekly and monthly report templates pre-built. The 14-day free trial includes one site so you can validate the full experience on a single client site before bringing the rest over.
Still have questions? Contact us
Comparison based on publicly available Site24x7 pricing and feature documentation, last verified . Site24x7 is a product of Zoho Corporation; all trademarks used here for identification and comparison purposes only. SiteLetter is independent and not affiliated with, sponsored by, or endorsed by Site24x7 or Zoho. For the most current Site24x7 pricing and feature information, see site24x7.com.
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SiteLetter is the kind of tool you forget you're using, until your client thanks you for the report you didn't write.
- ✓ 2-minute setup. Add a URL. We auto-discover pages, seed alerts, schedule reports.
- ✓ No scripts to install. We monitor from the outside, like a real visitor.
- ✓ Cancel anytime. No credit card to start, no contract.