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Site24x7 Website Monitoring

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What Site24x7 Website Monitoring is

Site24x7 Website Monitoring checks website availability, speed, and responses from monitoring locations, then alerts teams when issues occur. Its uptime checks cover HTTP, HTTPS, IPv4, and IPv6, with checks available from more than 130 cities and intervals as low as 10 seconds. Multi-location rechecks help confirm problems before an alert fires; keyword or phrase checks can flag missing expected content or unexpected page text. The wider offering also describes ping and DNS monitoring, synthetic transactions, real user monitoring, REST API monitoring, and website security monitoring. Setup needs no agent installation or code, and private On-Premise Pollers can monitor internal sites behind firewalls. Alerts include email, SMS, Slack, and PagerDuty; integrations include ServiceNow, Microsoft Teams, Jira, Zapier, and webhooks. The free plan covers up to 50 resources. Web Uptime costs $9 per month billed annually and includes 25 websites, one-minute polling, 32 monitoring locations, and email support. A 30-day trial is listed.

Who it suits

It suits IT and DevOps teams in organizations ranging from startups and small and medium businesses to large companies and governments. Teams can choose checks and alerts suited to public websites or internal sites behind firewalls.

What it does well

  • Checks HTTP, HTTPS, IPv4, and IPv6 uptime.
  • Rechecks across locations before alerting.
  • Keyword checks flag missing or unexpected page content.
  • No agent installation or code is required for setup.
  • Free plan covers up to 50 resources.

What to know first

  • Web Uptime polls at one-minute intervals.
  • Web Uptime includes 25 websites.
  • Web Uptime support is by email.

Limits

The free plan covers up to 50 resources and includes instant downtime email alerts. The least expensive paid plan, Web Uptime at $9 per month billed annually, includes 25 websites, one-minute polling, 32 monitoring locations, transaction monitors, RUM page views, three status pages, and email support.

Plans

PlanBilled and limitsPrice
Freeforever · up to 50 resources · instant downtime email alertsFree
Web Perfpaid annually ($39/month shown before annual price) · 40 websites · 8 transaction monitors · 1-minute polling interval · 8 monitoring locations · 100K page views · 10 status pages · classic support$36 a month
Enterprise Plus Webpaid annually ($999/month shown before annual price) · 2,500 websites · 100 transaction monitors · 30-second polling interval · 16 monitoring locations · 5M page views · 3 status pages · classic support$899 a month
Web Uptimepaid annually ($10/month shown before annual price) · 25 websites · 1-minute polling interval · 32 monitoring locations · transaction monitors · RUM page views · 3 status pages · email support$9 a month

As site24x7.com lists them, read 2 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open the Site24x7 website monitoring page.
  2. Choose the free plan, start the 30-day trial, or select a paid plan.
  3. Add website monitors; setup requires no agent installation or code.
  4. Set up email, SMS, Slack, or PagerDuty alert contacts.
  5. Use a private On-Premise Poller to monitor internal sites behind firewalls, if needed.

Overview

Site24x7 Website Monitoring is a website monitoring service for IT and DevOps teams that need availability checks alongside content and performance monitoring. It is best suited to teams watching several sites or combining public-site checks with broader monitoring needs. Its breadth is useful, but the plan quotas, polling intervals, and support tiers matter when choosing a plan.

Founded in 2006, Site24x7 serves organizations from startups and small businesses to large enterprises and governments. It checks HTTP and HTTPS over IPv4 and IPv6 from more than 130 cities, with intervals as short as 10 seconds. Multi-location rechecks help avoid alerts based on a single bad result; keyword and phrase checks can flag missing expected content or unexpected additions.

Setup requires no agent installation or code. Private On-Premise Pollers can monitor internal sites behind firewalls, extending its use beyond public websites.

Key features

Availability and content monitoring

Distributed checks and rechecks provide a stronger basis for downtime alerts than relying on one location. Content checks add a practical safeguard for pages where a missing phrase or unexpected content change matters. These signals are useful, though they are only part of a broader performance-monitoring approach.

Broader monitoring and integrations

Site24x7 also describes ping and DNS monitoring, synthetic transactions, real-user monitoring, REST API monitoring, and website security monitoring. Email, SMS, Slack, and PagerDuty are listed for alerts; integrations also include ServiceNow, Microsoft Teams, Jira, Zapier, and webhooks. That range suits teams that want monitoring alerts to fit into existing workflows, rather than another isolated dashboard.

The customer REST-style HTTP/HTTPS API can add, modify, delete, or suspend monitors and retrieve availability, response-time, uptime, and performance data, with no additional charge for customers. Site24x7 describes SSL/TLS support, AES-256 encryption for data in transit and at rest, and compliance with ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018, and GDPR.

Pricing

The pricing model is freemium, with paid plans from $9/mo on an annual basis and a 30-day trial. The published monthly figures below are billed annually; the higher pre-annual figures are included where shown.

PlanPrice and limits
Freefree, billed forever; up to 50 resources and instant downtime email alerts.
Web Uptime$9 a month, billed paid annually ($10/month shown before annual price); 25 websites, 1-minute polling, 32 monitoring locations, transaction monitors, RUM page views, 3 status pages, and email support.
Web Perf$36 a month, billed paid annually ($39/month shown before annual price); 40 websites, 8 transaction monitors, 1-minute polling, 8 locations, 100K page views, 10 status pages, and classic support.
Enterprise Plus Web$899 a month, billed paid annually ($999/month shown before annual price); 2,500 websites, 100 transaction monitors, 30-second polling, 16 locations, 5M page views, 3 status pages, and classic support.

The free plan is a low-commitment way to cover up to 50 resources, but it offers instant email alerts rather than the published paid-plan quotas for sites, polling, locations, transactions, and page views. Web Uptime is the entry paid tier for teams monitoring up to 25 websites that can work with one-minute polling and email support. Web Perf costs more but raises the website and page-view allowances and adds classic support; it has fewer monitoring locations than Web Uptime, so the upgrade is not an across-the-board increase. Enterprise Plus Web is for large estates needing 2,500 websites, 100 transactions, and faster 30-second polling, at a substantially higher annual-billed price. Paid plans have distinct quotas and status-page allowances; compare the relevant limits before committing.

Platforms

Site24x7 lists Android, iOS, Linux, web, and Windows platforms, as well as an API. Its monitoring locations and private On-Premise Pollers support distributed checks and internal-site coverage.

Who it's for

Site24x7 is a strong fit for IT and DevOps teams that need more than basic uptime alerts: content checks, transactions, real-user monitoring, integrations, or internal-site visibility. Smaller teams can start with the free tier or Web Uptime, while the higher website and transaction quotas in Enterprise Plus Web target much larger estates. Teams that need a simple low-cost check for a small number of sites may not need its broader feature set.

Pros and cons

  • Pro: Multi-location checks and rechecks help reduce false-positive downtime alerts.
  • Pro: Content checks, synthetic transactions, and real-user monitoring extend monitoring beyond whether a site responds.
  • Pro: No-agent setup and private On-Premise Pollers accommodate both public and firewall-protected sites.
  • Con: Paid tiers impose distinct website, location, polling, transaction, and page-view caps, so the right plan depends on several quotas rather than price alone.
  • Con: Web Uptime offers email support, while classic support appears on the higher Web Perf and Enterprise Plus Web plans.
  • Con: Enterprise Plus Web is a significant jump in price for the much larger quotas and 30-second polling.

Alternatives

For other options, see Internet Performance Monitoring Software.

  • Dotcom-Monitor has a free plan with up to 25 targets, five-minute monitoring, two locations, and email alerts; consider it when those smaller limits fit your needs.
  • HetrixTools offers a free-for-life plan with 15 uptime monitors, 15 server monitors, one-minute checks, and four locations; it suits readers prioritizing a free allowance that includes server monitoring.
  • WebSitePulse has a paid HTTP performance plan at $9 a month with a 10-minute interval and one monitoring location; consider it if that narrower, slower-check plan fits.
  • Better Stack offers a free personal-project plan with 10 monitors and heartbeats, one status page, and other observability allowances; it is an option for personal projects that need those tools.
  • Uptime Kuma is free, MIT-licensed, and self-hosted, making it an option for readers who want a self-hosted deployment.
  • UptimeRobot has a free plan with 50 monitors and five-minute intervals, suited to hobby and non-profit projects.
  • Gatus offers a free Standard plan with one status page, 30 endpoints per page, and a two-minute minimum interval, alongside a range of protocol checks.
  • Hyperping has a free plan with one seat, 20 monitors, five-minute checks, one server monitoring agent, and one basic status page.

Verdict

Choose Site24x7 Website Monitoring if your IT or DevOps team wants availability checks combined with content monitoring, integrations, and additional monitoring types. Its main advantage is that breadth, backed by distributed rechecks and options for internal sites. Look elsewhere if your needs are limited to a small, simple uptime check or if the plan's polling, location, support, or quota limits do not fit your workload.

Verdict

Site24x7 combines availability checks with content monitoring, integrations, and additional monitoring types. Its free plan and Web Uptime plan have distinct resource, polling, and support limits.

Questions

Is there a free plan?

Yes. The Free plan costs nothing, billed forever, and covers up to 50 resources with instant downtime email alerts.

How much does a paid plan cost?

Paid plans start at $9 per month billed annually. Web Uptime is listed at $9.00 per month billed annually, with $10/month shown before the annual price.

Is a free trial available?

Yes. Site24x7 lists a 30-day trial.

Which platforms does it support?

Listed platforms are Android, API, iOS, Linux, web, and Windows.

What does the Web Uptime plan include?

It includes 25 websites, one-minute polling, 32 monitoring locations, transaction monitors, RUM page views, three status pages, and email support.

Can it monitor websites behind a firewall?

Yes. Private On-Premise Pollers can monitor internal sites behind firewalls.

Facts from Site24x7 Website Monitoring's own pages

Alerts and integrations
The product page lists email, SMS, Slack, and PagerDuty for alert contacts; the integrations page also lists ServiceNow, Microsoft Teams, Jira, Zapier, and webhooks. · site24x7.com, 2 Oct 2026
API
The REST-style HTTP/HTTPS API can add, modify, delete, or suspend monitors and retrieve availability, response-time, uptime, and performance data; the maker says API access has no additional charge and is for customers. · site24x7.com, 2 Oct 2026
False positive checks
Multi-location rechecks are used to eliminate false positives before an alert fires. · site24x7.com, 2 Oct 2026
Founded
2006 · site24x7.com, 28 Sept 2026
Intended users
Site24x7 says it serves IT and DevOps teams from startups and small and medium businesses to Fortune 500 companies and governments. · site24x7.com, 2 Oct 2026
Other monitoring
The website monitoring page also describes ping and DNS monitoring, synthetic transactions, real user monitoring, REST API monitoring, and website security monitoring. · site24x7.com, 2 Oct 2026
Purpose
Site24x7 checks website availability, speed, and responses from monitoring locations and alerts teams when issues occur. · site24x7.com, 2 Oct 2026
Security
Site24x7 describes SSL/TLS support, AES-256 encryption for data in transit and at rest, and compliance with ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018, and GDPR. · site24x7.com, 2 Oct 2026
Setup
The maker says setup requires no agent installation or code, and private On-Premise Pollers can monitor internal sites behind firewalls. · site24x7.com, 2 Oct 2026
Support
The Web Uptime plan lists email support, while Web Perf and Enterprise Plus Web list classic support. · site24x7.com, 2 Oct 2026
Uptime checks
Website uptime monitoring supports HTTP, HTTPS, IPv4, and IPv6, with checks from more than 130 cities and intervals as low as 10 seconds. · site24x7.com, 2 Oct 2026
Website content
Keyword or phrase checks can alert when expected page content disappears or unexpected content appears. · site24x7.com, 2 Oct 2026

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