What does Alert21 Website Monitoring check?
It monitors configured public HTTP/HTTPS website or service URLs and tracks availability, response time and supported SSL certificate information.
Alert21 Uptime · Live Live
Know When Your Website Goes Down - Before Your Customers Do.
Monitor uptime, response time and SSL health 24x7. Get instant downtime and recovery alerts through Email, SMS, WhatsApp and In-App notifications.
4
Total Websites
4
Online (UP)
0
Outages (DOWN)
0
Slow / Degraded
UP
Alert21 Website
https://alert21.in
UP
Customer Portal
https://app.alert21.in
UP
Auth & Login Service
https://auth.alert21.in
1 free monitor • No card required for Free plan • Upgrade anytime
Website monitoring built for businesses that cannot afford silent downtime.
Alert21 continuously checks your public website or service URL at the monitoring interval available in your plan. When a problem is detected, Alert21 records the incident and can notify your configured contacts. When the website recovers, the recovery is tracked so your team can see what happened and how long the interruption lasted.
- 24x7 Uptime Checks: Continuously ping your website or public HTTP/HTTPS endpoint to detect health state as UP, DOWN or DEGRADED.
- Response Time Tracking: Track latency in milliseconds and detect performance degradation before customer impact.
- SSL Expiry Monitoring: Watch certificate expiration dates to prevent browser security warnings and lost trust.
- Multi-Channel Alerts: Instant downtime and recovery alerts over Email, SMS (DLT), WhatsApp and In-App.
Everything you need to monitor website health.
Uptime Monitoring
Continuously check your website or public HTTP/HTTPS endpoint and see its current health as UP, DOWN or DEGRADED.
Response Time Monitoring
Track how quickly your website responds. Identify slow services before performance issues become customer complaints.
Slow Response Alerts
Set a slow-response threshold, such as 3,000 ms, and surface websites that remain reachable but are performing poorly.
SSL Certificate Monitoring
See the remaining validity of your HTTPS certificate and act before certificate expiry causes browser warnings or trust issues.
Incident History
Keep a clear record of website outages and recoveries so your team can review reliability over time.
30-Day Uptime Visibility
See recent uptime performance for each monitored website directly from the monitoring dashboard.
Multiple Alert Contacts
Configure the people who should receive monitoring notifications according to the contact allowance in your plan.
Get the alert where your team will actually see it.
Email Alerts
Receive monitoring notifications over email without depending on a person continuously watching the dashboard.
SMS (DLT) Alerts
For Indian mobile alerts, use Alert21 SMS infrastructure and approved DLT templates. SMS usage is deducted from the user SMS wallet where enabled.
WhatsApp Alerts
Send supported monitoring notifications over WhatsApp when the user has the required WhatsApp setup and balance. Usage is deducted from the WhatsApp wallet where enabled.
In-App Notifications
Keep important monitoring events visible inside the Alert21 dashboard.
Start monitoring in minutes.
- 1. Add your website: Enter a display name and your public HTTP or HTTPS URL.
- 2. Test the URL: Verify that the target can be reached before saving the monitor.
- 3. Choose monitoring settings: Select the monitoring interval available in your plan and set the slow-response threshold.
- 4. Select alert channels: Choose Email, SMS (DLT), WhatsApp and/or In-App based on the channels available to your account.
- 5. Start monitoring: Alert21 begins checking the website and displaying uptime, response time and SSL health in your dashboard.
- 6. Review incidents: If a website becomes unavailable or degraded, review incidents and alert activity from one place.
Health Status Definitions
| Status | Description |
|---|---|
| UP | Website responded successfully within the monitoring rules. |
| DEGRADED | Website is reachable but response time crosses the configured slow-response threshold or another supported health rule. |
| DOWN | Website check fails according to the active monitoring / confirmation logic. |
| PAUSED | Monitoring has been manually paused and checks are not expected to run until resumed. |
One dashboard for uptime, latency, SSL and incidents.
The Website Monitoring workspace gives you a live overview of monitored websites, monitor quota, current health, recent uptime, response time and SSL status. Open any monitor for more detail, pause or re-check monitoring, manage notification contacts, and review incidents from the same workspace.
Plans that scale with your websites.
Monitoring subscription fee is separate from communication usage. Email and In-App notifications are included according to plan settings. SMS and WhatsApp alerts consume the respective Alert21 user wallet when enabled. Indian billing includes +18% GST.
| Plan | Monthly Price | Annual Price | Monitors | Check Interval | Retention | Contacts |
|---|---|---|---|---|---|---|
| Free | ₹0 / month | ₹0 / year | 1 monitor | 5 min | 7 days | 1 contact |
| Monitoring Basic (Recommended) | ₹299 / month | ₹2,999 / year | 10 monitors | 1 min | 60 days | 5 contacts |
| Pro | ₹799 / month | ₹7,999 / year | 50 monitors | 1 min | 90 days | 10 contacts |
| Business | ₹1,499 / month | ₹14,999 / year | 100 monitors | 30 sec | 180 days | 25 contacts |
| Agency | ₹2,999 / month | ₹29,999 / year | 200 monitors | 30 sec | 365 days | 50 contacts |
| Enterprise | From ₹9,999 / month | Custom contract | 500+ monitors | 15 sec / custom | 365+ days | 100+ contacts |
Built for every team that depends on an online service.
- SaaS & Software Teams: Detect customer-facing availability or performance problems early and keep the responsible team informed.
- Fintech & Payment Platforms: Monitor critical public web entry points and receive immediate operational alerts when availability changes.
- Digital Agencies: Monitor multiple client websites from one Alert21 account and scale monitor capacity through higher plans.
- E-commerce Businesses: Know when storefront availability or response time changes could affect orders and customer experience.
- Corporate Websites: Track important public websites, landing pages and SSL certificate validity without manual checking.
- Hosting / IT Operations: Use a single dashboard to see website health, incidents, response time and alert recipients.
Direct Answers
Frequently Asked Questions
Quick answers to common questions about Alert21 Website Monitoring, uptime checks, SSL tracking, and multi-channel alerts.
How often will Alert21 check my website?
The check interval depends on your active monitoring plan. The Free plan can use a slower interval, while paid plans can provide shorter intervals such as 60 seconds or 30 seconds.
What happens when my website goes down?
Alert21 records the monitoring event and can notify configured contacts through the notification channels enabled for your monitor and account.
Can I get an alert when the website is back online?
Yes. Recovery can be recorded so your team can see when service returns and review the incident history.
Does Alert21 monitor SSL certificate expiry?
Yes, supported HTTPS monitors can display SSL certificate expiry information so you can act before a certificate expires.
Can I monitor more than one website?
Yes. The number of monitors available depends on your plan. You can upgrade when you need more website capacity.
Are SMS alerts included in the monitoring subscription?
SMS alert usage is deducted from the user SMS wallet when SMS alerts are enabled. Monitoring subscription and SMS consumption are billed separately.
Are WhatsApp alerts included in the monitoring subscription?
WhatsApp alert usage is deducted from the applicable WhatsApp wallet or billing balance when the channel is enabled and configured.
Can I add multiple people to receive alerts?
Yes. Notification Contacts lets you configure recipients, subject to the contact allowance of your monitoring plan.
Can I pause monitoring?
Yes. A monitor can be paused and resumed from the user panel.
What does DEGRADED mean?
DEGRADED indicates that the website remains reachable but is performing outside the configured healthy response threshold or another supported monitoring rule.
Do I need to install software on my website?
No agent is required for standard public HTTP/HTTPS monitoring. Add the public URL in Alert21 and start monitoring.
Can I start free?
Yes. A Free plan can be offered with one monitor so users can test the Website Monitoring workflow before upgrading.
Where do I manage my monitors?
After login, open Website Monitoring in app.alert21.in to access Overview, My Websites, Incidents, Notification Contacts and Plan & Billing.
EVERY ALERT. ONE API.
Your website should not go down silently.
Start monitoring today and keep your team informed when website health changes.