Verify Your Number
Add your WhatsApp phone number in AlertsDown settings. We send a verification code by SMS to confirm it's you.
Get website down alerts on WhatsApp - the messaging app you already use every day. AlertsDown notifies your verified number the moment your website or API goes down, and setup takes about five minutes. No extra apps to install or check.
Add your WhatsApp phone number in AlertsDown settings. We send a verification code by SMS to confirm it's you.
Add websites and APIs to monitor. Select your verified WhatsApp contact as a notification channel for each monitor.
When downtime is detected, AlertsDown dispatches a WhatsApp message to your number. Track current status and recovery in your dashboard.
| Channel | Avg time to open | Best for | Cost | Group support |
|---|---|---|---|---|
| Typically a few minutes | Personal downtime alerts on the phone you already check | Included on Saas and Founding Builders, with monthly quotas | No - verified individual numbers | |
| Often 30 minutes or more | Detailed records, archives, and low-urgency updates | Included on Indie, Saas, and Founding Builders | Mailing lists and CC | |
| SMS | Typically a few minutes | Reaching phones without a data connection | Per message on paid plans | No - individual numbers |
| Slack | Minutes while at your desk | Team channels and incident coordination | Slack plan varies; not a direct AlertsDown channel | Yes - shared channels |
| Telegram | Typically a few minutes | Group alerts and international teams | Included on Indie, Saas, and Founding Builders | Yes - group chats |
| Push | Typically a few minutes | Products with their own mobile app installed | App/provider cost varies; not an AlertsDown channel | No - individual devices |
No single channel wins everywhere. WhatsApp and Telegram need an internet connection, SMS works without mobile data, and email remains the dependable archive. Many teams combine two channels, which reduces the chance that a critical outage is missed.
When a monitor detects downtime, AlertsDown sends a WhatsApp message through its provider template, carrying the confirmed alert data shown below:
Service: Checkout API
Status: down
Detected: 03 Aug 2026, 14:32 UTC
Exact punctuation and line breaks depend on the active provider template that renders these fields.
Every field is filled in automatically at the moment of detection: the service name you gave the monitor, the literal status down, and a detection timestamp in UTC so distributed teams read it unambiguously.
That is enough context to know which service went down and when, straight from your lock screen.
Open the monitor in AlertsDown, investigate the cause, and resolve the incident. One honest limitation: AlertsDown does not currently send a WhatsApp recovery message. Confirm that your site is back online and review the full incident history in your dashboard.
Sign up for a free AlertsDown account, or log in to your existing dashboard. The free plan is enough to add your first monitor, and you can upgrade to a plan that includes WhatsApp whenever you are ready.
Add the website or API you want to watch. Enter the URL, give the monitor a recognizable name like Checkout API, and choose a check interval. AlertsDown starts measuring uptime as soon as you save.
Open Notifications in your dashboard settings and add the phone number you use for WhatsApp, including the country code. The number becomes a contact you can attach to any monitor once it is verified.
AlertsDown sends a verification code to that number by SMS. Enter the code in the dashboard to confirm the number is really yours. Verified contacts stay on your account and can be reused across monitors.
Enable the verified WhatsApp contact on each monitor that should alert you. From then on, when AlertsDown detects downtime, it dispatches a WhatsApp message with the service name, status, and detection time.
Let's be honest: emails get buried, and dedicated monitoring apps get ignored. But WhatsApp? You probably check it dozens of times a day. Receiving WhatsApp downtime notifications there means less inbox-switching when every minute of an outage costs you visitors, sales, or trust.
When your e-commerce checkout goes down at 2 AM, you need to know fast. AlertsDown dispatches a WhatsApp alert as soon as downtime is detected; actual arrival then depends on the messaging provider, WhatsApp's network, and your phone's connection - no inflated promises, just a channel you already watch.
You're not always at your desk. WhatsApp alerts for website monitoring reach your own number whether you're in a meeting, commuting, or at home with family, so a down website never waits until morning.
A broken checkout burns revenue quietly. A WhatsApp message the moment your store or payment flow goes down lets you react before abandoned carts and support tickets pile up.
When an endpoint your customers depend on starts failing, the on-call developer gets a WhatsApp API downtime alert with the service name and detection time - enough context to start investigating immediately. It's WhatsApp server monitoring without another dashboard to babysit.
Get alerted about client site issues on the app you already check. Fix problems before clients even notice - that's how you build trust and retain accounts.
When you're the only one watching your side project, a WhatsApp alert ensures you never miss a critical outage - even on weekends, even on holiday.
WhatsApp is the dominant messaging platform in Europe, Latin America, Africa, and Asia. Team members in 180+ countries can each verify their own number and receive alerts without per-message SMS fees.
Explore uptime monitoring use cases for agencies, SaaS, and ecommerce.
Just getting started? Set up website monitoring first, then attach WhatsApp to your monitors.
Need a channel that works without mobile data? Compare with SMS downtime alerts as a fallback.
Learn more in the AlertsDown blog.
Review plan options and WhatsApp quotas on the pricing page.
Setup takes about 5 minutes. Create a free account to add your first monitor, then choose a plan that includes WhatsApp to get downtime alerts on the app you already use every day.
In your AlertsDown dashboard, go to Notifications and add your WhatsApp phone number. We'll send a verification code to that number by SMS. Once verified, select the WhatsApp contact as an alert channel for any monitor.
WhatsApp alerts are available on Saas Builders and Founding Builders. Free Builders includes email only, while Indie Builders adds SMS, Telegram, and webhooks without WhatsApp.
Currently, WhatsApp alerts are sent to verified individual numbers, not groups. Each team member can verify their own number and be added to the same monitor. Telegram group alerts are available on Indie, Saas, and Founding Builders.
WhatsApp alerts work anywhere WhatsApp itself is available - more than 180 countries worldwide. AlertsDown adds no geographic restrictions or location-based fees; actual delivery depends on WhatsApp and our messaging provider's coverage.
AlertsDown dispatches the WhatsApp message as soon as downtime is detected. From there, delivery depends on our messaging provider, WhatsApp's infrastructure, and your phone's connection, so we don't promise a fixed number of seconds.
A regular personal WhatsApp account is enough. AlertsDown sends the alerts through its business messaging provider, so you only need the everyday WhatsApp app on your phone to receive downtime notifications.
AlertsDown doesn't currently include a quiet-hours scheduler for WhatsApp. To silence alerts at night, mute the chat or use your phone's notification schedules, or adjust which channels each monitor uses during off-hours.
WhatsApp typically holds undelivered messages and delivers them when your phone reconnects, subject to WhatsApp's own delivery behavior. If you might be offline during critical outages, pair WhatsApp with SMS, which doesn't require a data connection.
They serve different situations. SMS can reach phones without an internet connection, while WhatsApp needs data or Wi-Fi but lands in a richer, familiar inbox. Many teams configure both so a critical outage is covered either way.
Yes - each team member adds and verifies their own WhatsApp number, and you can enable multiple verified contacts on the same monitor. WhatsApp group delivery isn't currently supported; for shared channels, Telegram groups are an alternative.