Skip enterprise IT observability.
SiteLetter fits agencies.
Site24x7 is enterprise IT observability with servers, APM, Kubernetes, and logs across a pricing matrix with a line per product. If your monitoring need is "agency-shaped" - per-page Lighthouse, AI visual regression, a white-label weekly report built to forward - Site24x7 is overkill and the wrong shape. SiteLetter is built for exactly that job, at $4.80/site a month with every monitor on.
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. If what your client asks for is 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 rather than your monitoring vendor, 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 white-label scheduled reports under your agency's name come with every site, at no separate rate and behind no MSP tier.
"AI-powered monitoring for modern IT."
"Website monitoring for agencies, delivered by email."
What the monthly client report needs beyond infrastructure monitoring
Site24x7 ships excellent infrastructure monitoring. As of August 31, 2026, the things below are either not listed in Site24x7's published documentation, gated to the MSP plan, or spread across product lines that each carry their own meter.
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, and nothing is metered per pageview.
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: two screenshots per monitored page every 24 hours, mobile and desktop, an AI classifier that filters cosmetic noise (rotating banners, cookie variants), and real breakage flagged in the dashboard as soon as the daily scan spots it and called out in the report you forward.
Priced per site per day, not per product line
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 $0.028/instance-hour, 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 priced per site per day from one rate table, and nothing is metered per pageview, per synthetic run, per GB of logs or per instance-hour: $4.80/site a month with every monitor on, less for a site that runs fewer of them. The white-label report comes with every site, at no separate rate.
White-label 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's white-label client reports come with every site, at no separate rate and behind no MSP tier: your logo, your brand colour, your reply-to address, your agency name as the sender, and, once you verify your domain by DNS, the report sent from your own address.
One agency-shaped product, 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. Working out what a given setup costs means pricing several of those lines and adding them up. SiteLetter is one product with monitors you switch on per site, and the rate for each is on one page.
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 monitor turns on, and the report template is pre-built. Alerting is not allocated per monitor either: the rules you set at agency level apply to every client and every site, and a client you customise keeps inheriting everything you did not change.
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.) |
| Every monitor on | $4.80/site a month with every monitor on (15 pages monitored); less per site if it runs fewer of them | 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 days on 1 site, no card | Yes (Free Forever tier; 50 resources) |
| Agency branding on client reports | White-label with every site, at no separate rate: 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 | MSP plan $54/mo for 9 customers (white-label rebrand + multi-customer); base allocation 15 websites total |
| 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 | 30 days raw on Starter; varies by tier (specifics behind support portal) |
| 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 | 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 |
| Sitemap auto-discovery | Yes (weekly sync) | No (Deep Discovery for Internet Services is for protocols, not page-level) |
| Public status page | Not available | 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) |
| Client-facing reports | ||
| Scheduled client-facing email report | Yes (weekly, bi-weekly, monthly, quarterly), at no separate rate | 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 branding defaults (applied to every client report) | Yes: white-label, at no separate rate | MSP plan only |
| Drag-and-drop report builder | Yes | No (templated reports) |
| 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. | 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), monitoring data stored in the EU; screenshots go to OpenAI in the US under SCCs | 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 | Not available | 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 .
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, Site24x7 is a complete answer
Site24x7's Web Uptime tier carries 25 websites at one-minute polling from 32 locations, and their probe network reaches 130+ cities, which is an order of magnitude more vantage points than SiteLetter's three regions. For availability checks across a geographically spread client base, that reach is theirs.
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
Site24x7 is enterprise IT infrastructure monitoring, so the agency deliverable is assembled from add-ons: there is no Lighthouse four-score breakdown, no day-over-day visual change detection, and white-label rebranding is gated to their MSP plan with its own website allocation to manage.
10 client sites with every monitor on, covering up to 150 monitored pages. Prepaid, nothing recurring.
Site24x7 figures are the ones that vendor publishes, in the currency they publish them. 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 SiteLetter's 3)
Site24x7 probes from 130+ cities globally, with per-plan included location counts from 8 to 32. SiteLetter does multi-region probing too (EU primary, with a US verifier re-checking any failure and an AP tiebreaker only when those two disagree) - homepages every minute, with the other 14 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 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, and has no public API today.
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.
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 white-label weekly report built to forward. $4.80/site a month with every monitor on, one rate table, no MSP tier.
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 with period-over-period trend deltas 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 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).
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 scheduled white-label email reports come with every client site, at no separate rate and behind no MSP tier: per-client logo, brand color and reply-to address, sent from your own domain once you verify it, to your inbox or to your client. A site with every monitor on is $4.80 a month, and less if it runs fewer.
It depends on which Site24x7 plan you compare against. For basic uptime, their Web Uptime tier at $9/mo annual carries 25 websites with 1-min polling from 32 locations, and their probe network reaches 130+ cities; that tier is 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 prices each product line separately, so the real cost depends on which checks, servers, RUM pageviews, and log volume you turn on. SiteLetter is $4.80/site a month with every monitor on, less for a site that runs fewer, from one rate table with no plan tiers, and scheduled white-label reports come with every site at no separate rate.
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; it does 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 big enough to matter as noise / intentional / breakage (Site24x7 has "website defacement monitoring" for unauthorised content changes, not a daily visual diff with AI classification). White-label scheduled per-client email reports with per-client logo, brand color and reply-to, with every site at no separate rate (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 every monitor turns on for them (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-labelling (your logo, your brand color, your reply-to address, and reports sent from your own verified domain under your agency name) and scheduled email reports come with every site at no separate rate, and you get 15 pages per site at $4.80/site a month with every monitor on, behind no MSP tier.
SiteLetter keeps 2 years (730 days) of Lighthouse scans, screenshots, asset checks and reports, the same window on every account, with no plan tiers. Raw uptime check rows roll off after 280 days; uptime incidents are kept with the rest of the history. 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, SiteLetter keeps more of it, and keeps the same amount on every account.
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 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 monitoring service enabled, branded weekly and monthly report templates pre-built. Alert rules are the part you write yourself, and you write them once at agency level rather than per monitor: every site you add inherits them, with no quota to allocate. New accounts get 14 days of full monitoring on one site with no card, so you can validate the full experience on a single client site before bringing the rest over.
Still have questions? Get in touch.
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.
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.