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Whydown

Free website uptime monitoring. Checks your URLs every 30 seconds, alerts you by email or Slack when your site goes down, and shows SSL expiry, response times, and plain-language incident reports. Sta

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Overview

Free website uptime monitoring. Checks your URLs every 30 seconds, alerts you by email or Slack when your site goes down, and shows SSL expiry, response times, and plain-language incident reports. Start free — no credit card needed.

AI summary

Whydown offers free website uptime monitoring, checking URLs every 30 seconds and providing alerts via email or Slack when a site goes down. It also displays SSL expiry, response times, and incident reports in plain language.

Sources behind this listingSee source links, recorded dates and owner corrections.

Observed facts come from public pages. Founder-edited facts are supplied by the verified owner. AI-inferred facts are model interpretations; derived facts are calculated from other data. A source link lets you check the current page. It does not guarantee the fact is still current.

Dates show when a record was saved. Some older records use the listing’s update date; they are not proof of a fresh check. Missing source records are shown explicitly.

TaglineFree website uptime monitoring. Checks your URLs every 30 seconds, alerts you by email or Slack when your site goes down, and shows SSL expiry, response times, and plain-languag...
ObservedRecorded Source: whydown.org
DescriptionFree website uptime monitoring. Checks your URLs every 30 seconds, alerts you by email or Slack when your site goes down, and shows SSL expiry, response times, and plain-languag...
ObservedRecorded Source: whydown.org
Free planYes
ObservedRecorded Source: whydown.org
Free trialYes
ObservedRecorded Source: whydown.org
IntegrationsSlack
ObservedRecorded Source: whydown.org
SummaryWhydown offers free website uptime monitoring, checking URLs every 30 seconds and providing alerts via email or Slack when a site goes down. It also displays SSL expiry, respons...
AI-inferredRecorded Source link unavailable

Who Is It For

Best for

Individuals or small businesses looking for a straightforward and cost-effective solution for monitoring website uptime.

Not for

Larger enterprises or users needing advanced monitoring features or extensive integrations beyond Slack.

Strengths & Weaknesses

Biggest strength

The service provides real-time monitoring with frequent checks and immediate alerts, making it suitable for users who require timely updates on website status.

Biggest weakness

Limited integrations and features compared to more comprehensive monitoring solutions (AI-inferred; may be outdated. Founders can correct this)

Classification

Likely competitors
UptimeRobotPingdomStatusCake

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How we sourced this: Observed fields () were crawled from https://whydown.org/ when recorded. Source links and dates are available above. AI-inferred fields () were generated by gpt-4o-mini and are always labelled, never presented as measured fact. Last updated: 16 September 2026. Site availability checked: 16 September 2026. Is this your tool? Claim it to edit and get a do-follow badge.