Site24x7 Website Monitoring
Ranked in Internet Performance Monitoring Software·Free plan·paid from $9/mo
About
Site24x7 Website Monitoring checks whether websites are available, how quickly they respond, and whether expected content is present, then alerts teams when issues arise. Uptime monitoring covers HTTP, HTTPS, IPv4, and IPv6, with checks from more than 130 cities and intervals as short as 10 seconds. Multiple-location rechecks help verify problems before alerts fire; keyword and phrase checks can flag missing or unexpected page content. The offering also includes ping and DNS monitoring, synthetic transactions, real-user monitoring, REST API monitoring, and website security monitoring. Setup requires no agent or code, and private On-Premise Pollers can monitor sites behind firewalls. Alerts can go to email, SMS, Slack, or PagerDuty, and integrations include ServiceNow, Microsoft Teams, Jira, Zapier, and webhooks. Its customer REST-style API manages monitors and retrieves performance data, with no additional access charge. A free plan covers up to 50 resources; the Web Uptime plan costs $9.00 per month billed annually, and a 30-day trial is available.
Who it is for
It suits IT and DevOps teams, from small businesses to large organizations, that need external website checks, content monitoring, or internal-site monitoring. Teams seeking monitor management and performance data through an API can also use its customer API.
What is good
- Checks from more than 130 cities.
- Polling intervals can be as low as 10 seconds.
- Multi-location rechecks help screen false positives.
- Private pollers can monitor sites behind firewalls.
- API manages monitors and retrieves performance data.
What to know first
- Free plan is limited to 50 resources.
- Web Uptime polling is once per minute.
- API access is for customers.
Inferse review
Site24x7 Website Monitoring: the full review
Site24x7 combines broad website checks with content alerts, integrations, and API access. Plan limits vary, so teams should match website counts, polling intervals, and monitoring locations to their needs.
Overview
Site24x7 Website Monitoring tracks website availability, response speed, and page content, with alerts when problems arise. It is a strong fit for IT and DevOps teams that want uptime checks alongside synthetic and real-user monitoring, but its tier limits make plan selection important.
Checks support HTTP and HTTPS over IPv4 and IPv6, from more than 130 cities and at intervals as short as 10 seconds. Rechecking across multiple locations before alerting helps reduce false alarms; keyword and phrase checks can also flag missing expected content or unexpected additions. Site24x7 was founded in 2006 and serves organizations from startups to governments.
Setup requires no agent or code. Private On-Premise Pollers can monitor internal sites behind firewalls, a useful option for teams with systems that are not publicly reachable.
Key features
Monitoring breadth
Alongside uptime checks, Site24x7 describes ping and DNS monitoring, synthetic transactions, real-user monitoring, REST API monitoring, and website security monitoring. That breadth can consolidate several website-observability needs, though the plan quotas below determine how much of it a team can use at scale.
Alerts, integrations, and API
Alerts can reach teams by email or SMS, and the product lists Slack and PagerDuty contacts. Integrations also include ServiceNow, Microsoft Teams, Jira, Zapier, and webhooks, making it easier to route incidents into existing workflows. The customer API can add, modify, delete, or suspend monitors and retrieve availability, response-time, uptime, and performance data; API access carries no additional charge.
Security and support
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. Web Uptime includes email support; Web Perf and Enterprise Plus Web include classic support.
Pricing
The free plan is billed forever at no cost and allows up to 50 resources, with instant downtime email alerts. It is a sensible starting point for basic coverage, but it does not include the website counts, polling intervals, or other paid-plan quotas shown below.
| Plan | Price and term | Included limits |
|---|---|---|
| Web Uptime | 9.00 USD per 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; email support |
| Web Perf | 36.00 USD per month, billed paid annually ($39/month shown before annual price) | 40 websites; 8 transaction monitors; 1-minute polling; 8 monitoring locations; 100K page views; 10 status pages; classic support |
| Enterprise Plus Web | 899.00 USD per month, billed paid annually ($999/month shown before annual price) | 2,500 websites; 100 transaction monitors; 30-second polling; 16 monitoring locations; 5M page views; 3 status pages; classic support |
Web Uptime is the lower-cost paid entry point for teams needing coverage for up to 25 sites and 32 locations. Web Perf costs more while increasing website and status-page allowances and adding a defined transaction-monitor and page-view quota, but it lists only 8 monitoring locations. Enterprise Plus Web is for large portfolios that need far more monitors and faster polling; its higher price buys substantially larger quotas, not more locations than Web Uptime. The plan prices are annual-billing rates, so teams should budget around that term.
The service offers a 30-day trial. Teams with requirements beyond the stated website, transaction, page-view, or location quotas should confirm a suitable fit before committing.
Platforms
Site24x7 lists support for Android, iOS, Linux, web, and Windows, as well as an API. This gives teams several ways to access and integrate monitoring without tying the choice to a single desktop platform.
Who it's for
Site24x7 suits IT and DevOps teams that need website uptime, content alerts, and broader monitoring options within one service. Its multi-location checks and private pollers are particularly relevant to teams covering both public websites and internal sites behind firewalls. It is less compelling for a small deployment that needs only a minimal, self-hosted uptime check, or for teams whose location and polling needs do not align with the plan quotas.
Pros and cons
- Pros: Checks across more than 130 cities, intervals as short as 10 seconds, and multi-location rechecks provide a broad basis for availability monitoring.
- Pros: Content alerts, synthetic transactions, real-user monitoring, and DNS and API monitoring extend coverage beyond simple uptime checks.
- Pros: Customer API access has no additional charge, and integrations include common incident and workflow tools such as Slack, PagerDuty, Jira, and webhooks.
- Cons: Website, transaction, page-view, location, and status-page quotas vary by plan, so teams need to match their usage to a tier rather than assume every plan offers broad coverage.
- Cons: Web Perf lists fewer monitoring locations than Web Uptime, while Enterprise Plus Web has a steep annual-billing price for teams that do not need its much larger quotas.
Alternatives
Consider Better Stack if its free plan's 10 monitors and heartbeats, one status page, and included exception, session-replay, and log allowances better fit a smaller project. Checkly is worth comparing for teams focused on API and browser checks: its free Hobby plan includes 10 uptime monitors, 1,000 browser/Playwright runs, and 10,000 API check runs across six locations.
Uptime Kuma is a free, MIT-licensed self-hosted option. For teams comparing monitoring services, see Internet Performance Monitoring Software. WebSitePulse is another monitoring option with a free plan and paid tiers. F5 BIG-IP APM is an alternative with a free trial and no free plan. Kentik Network Monitoring System offers a 30-day trial and paid Pro plan. Uptrends is a paid alternative with a free trial. DNS Spy is a paid alternative with a free trial.
Verdict
Choose Site24x7 Website Monitoring if your team wants multi-location website checks, content alerts, and room to add synthetic, real-user, DNS, and API monitoring. Its breadth and customer API access are the main reasons to choose it; the main reason to look elsewhere is the need to keep quotas and annual-billing costs tightly aligned with actual monitoring needs.
Compared on internet performance monitoring software
- Free plan
- Yessite24x7.com
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- $9/mosite24x7.com
- Probe locations
- 32 locationssite24x7.com
- Real-user monitoring
- Yessite24x7.com
- Synthetic monitoring
- Yessite24x7.com
- DNS monitoring
- Yessite24x7.com
- Routing monitoring
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- SaaS monitoring
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Facts
- Purpose
- Site24x7 checks website availability, speed, and responses from monitoring locations and alerts teams when issues occur.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
- False positive checks
- Multi-location rechecks are used to eliminate false positives before an alert fires.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
- 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
- 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
- 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
- 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
- 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
- Support
- The Web Uptime plan lists email support, while Web Perf and Enterprise Plus Web list classic support.site24x7.com · 2 Oct 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
Company
- Founded
- 2006site24x7.com · 28 Sept 2026
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Sources
- site24x7.com/website-monitoring.html· checked 2 Oct 2026
- site24x7.com/security.html· checked 2 Oct 2026
- site24x7.com/web-monitoring-API.html· checked 2 Oct 2026
- site24x7.com/site24x7-pricing.html· checked 2 Oct 2026
- site24x7.com/about-site24x7.html· checked 2 Oct 2026


