Know the second your website goes down.

WebChecky watches your sites around the clock — uptime, SSL, domains and response time — and alerts the right people the instant something breaks. Try a live check right now, no account needed.

No credit card · Free forever plan · Ready in 60 seconds

WebChecky monitoring dashboard — uptime, response time and per-site health
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Sites monitored

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Checks run

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People watching

One screen for your whole fleet's health.

A single reliability score, a live health matrix per site, uptime and latency over time, and every incident in one place — so you spot trouble before it spreads.

  • Reliability score

    A weighted read on how healthy everything is right now.

  • Health matrix

    Reachability, latency and stability for each site, colour-coded.

  • SLA targets

    Set a target per site and see who is on track or breached.

Reliability matrix — reliability score, health matrix, SLA targets and incidents
Complete Observability & Security Suite

The whole surface of a website — not just "is it up".

WebChecky combines 24/7 multi-region uptime, synthetic browser journeys, and deep diagnostics into a unified platform. Inspect, benchmark, and alert on every critical layer of your infrastructure.

DNS Health & Drift

DNS Lookup & Change Monitoring

Resolve A, AAAA, CNAME, MX, TXT, NS, SOA, CAA, PTR, SRV and DNSSEC. Automatically detects missing records, SPF lookup exhaustion (>10), and alerts your team the second an IP or nameserver changes.

Try Live DNS Tool 14+ Record Types
SPF · DKIM · DMARC

Email Security & Deliverability

Deep SPF syntax and include-chain validation, automatic DKIM provider detection (Google Workspace, M365, SendGrid, Mailgun, Amazon SES), DMARC policy enforcement, and reputation monitoring across global DNSBL blacklists.

Check Email Security Score 0–100
Cybersecurity Center

Security Center & Defense Headers

Comprehensive HTTPS and SSL certificate verification, redirect chain tracking, and automated scoring of critical defense headers: CSP, HSTS, X-Frame-Options, X-Content-Type-Options, and Referrer-Policy.

Launch Security Center 7+ Security Headers
OWASP Web Defenses

OWASP Top 10 Vulnerability Checks

Audit insecure cookies (missing Secure, HttpOnly, SameSite flags), server information disclosure, unsafe CORS policies, directory listings, exposed configuration files, publicly accessible .git repositories, and outdated libraries.

Run OWASP Scanner 11+ Vulnerability Checks
Attack Surface Defense

Attack Surface & Exposure Monitor

Proactively probes target domains for exposed administrative portals (/admin, /wp-admin, /login), XML-RPC APIs, debug traces, source maps (.js.map), backup archives, and leaked staging environments.

Probe Exposures 15+ Sensitive Probes
On-Page & Indexing

Technical & On-Page SEO Audit

Instant SEO health analyzer verifying titles, meta descriptions, heading hierarchy (H1/H2), canonical URLs, robots.txt, sitemap.xml, Open Graph, Twitter cards, Schema.org JSON-LD, broken links, and image alt tags.

Run SEO Audit SERP Simulation
Stack Fingerprinting

Technology Stack Detection & Evolution

Multi-vector fingerprinting for CMS (WordPress, Shopify, Drupal), web frameworks (Next.js, React, Laravel, Vue, Django), servers (Nginx, Apache, Cloudflare), cloud hosting, and analytics scripts with change alerts.

Detect Tech Stack CMS · JS · Cloud
Dead Man's Switch

Cron Job & Heartbeat Monitoring

Give your background workers, database backup tasks, and scheduled jobs a ping URL (webchecky.com/heartbeat/abc123). If the heartbeat doesn't arrive on schedule, WebChecky alerts your team immediately.

Setup Cron Monitor cURL · Wget · Python
Agency Deliverables

White-Label Agency PDF Reports

Generate multi-page executive client audit PDFs with your agency name, custom logo, brand color palettes, client name, custom notes, and verified WebChecky footer certifications.

Generate Sample PDF Custom Branding
Real Browser Flows

Playwright Synthetic User Journeys

Drive real headless browser interactions through checkouts, logins, and multi-step forms. When a step breaks, get alerted with a full-page screenshot of the exact failure state with masked credentials.

Build Synthetic Journey AES Encryption
Google Speed Metrics

Core Web Vitals & Performance

Real-time measurements for LCP, CLS, TTFB, FCP, page weight, request counts, and 30-day response latency charts with AI-powered 72-hour outage risk forecasting.

Track Performance LCP · CLS · TTFB
Private LAN & VPN

Localhost & Private Network Agent

Download our lightweight single-binary webchecky-agent for Windows, macOS, and Linux to monitor internal dashboards behind VPNs, office LANs, and localhost with native desktop alerts.

Get Local Agent Win · Mac · Linux

Synthetic monitoring

Is your login actually working — or just “up”?

A 200 OK doesn’t mean customers can sign in. Synthetic checks drive a real browser through the whole journey — log in, click through, add to cart — and page you the moment a step breaks, with a screenshot of exactly where.

  • Real user journeys

    Chain navigate, fill, click, wait and assert into a login or checkout flow. Start from a one-click template, then edit.

  • Fails exactly where it breaks

    If any step fails the site is marked down and we capture a screenshot at that step — password fields masked.

  • Credentials, handled

    Logins are encrypted at rest and referenced safely in any step. Auto-detect selectors straight from your own page.

Synthetic · app.example.com/login

Login working

All 5 steps passed · 1.9s

  1. 1

    navigate /login

    0.4s
  2. 2

    fill email field

    0.1s
  3. 3

    fill password field

    0.1s
  4. 4

    click Sign in button

    0.6s
  5. 5

    assert “Dashboard” visible

    0.2s
Load test · store.example.com

Passed

Stayed within all thresholds.

12,480

Requests

416

Req / s

214ms

p95 latency

0.2%

Errors

Requests / secramp → steady

Minimal load testing

See how your site holds up under a burst.

Not a full stress-testing rig — a fast, bounded burst of virtual users (up to 100, for up to a minute) you fire at any site right from its dashboard. Enough to spot-check before a launch or a campaign, with a plain-English verdict.

  • Bounded and safe

    Hard caps — up to 100 virtual users for up to 60 seconds — with automatic abort the moment the target starts failing. A smoke test, not a siege.

  • The numbers that matter

    Requests per second, p50–p99 latency, time-to-first-byte and error rate — charted second by second.

  • A clear pass or fail

    Set a p95 and error-budget target and get a verdict, plus a plain-language read on what slowed down and why.

Monitor what the cloud can't reach.

Internal dashboards, staging behind a VPN, a box on the office LAN, even localhost — download a tiny agent that checks them from your own machine and network, and pings your desktop the instant one drops.

  • Runs on your network

    Reaches firewalled and internal sites a cloud checker never could.

  • Native desktop alerts

    A real Windows / macOS / Linux notification the moment a site goes down.

  • Everything still syncs

    Results flow to your dashboard and fire email + Slack / Discord / Teams as normal.

Windows macOS Linux · single file, no runtime to install
webchecky-agent — your machine

$ webchecky-agent run

WebChecky Agent v0.1.0 — connected

[09:14:02] Internal Dashboard ONLINE

[09:14:02] Staging (VPN) ONLINE

[09:14:03] Grafana · LAN ONLINE

[09:14:03] Checkout API DOWN

↳ Connection refused

WebChecky · site down

Checkout API is down

Connection refused · just now

Downtime shows up where your team already is.

Email plus Slack, Discord and Microsoft Teams — connected in a couple of clicks. Recovery and SSL/domain-expiry alerts too. And your public status page can email its own subscribers automatically.

Slack Discord Teams Email

Website down

status.example.com is not responding (503)

just now

Recovered

api.example.com is back online

4m ago

SSL expiring

store.example.com certificate expires in 12 days

1h ago

Live in under a minute.

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Add your sites

Paste a URL — or bulk-import a whole list. No agents, no DNS changes, nothing to install.

2

We watch, 24/7

Uptime, SSL, domain and response time, checked every 15 minutes from the cloud.

3

You get alerted

The instant something breaks, the right people hear about it — with the reason and a timestamp.

Public status pages

Show customers you're on it.

Share a clean status page with live components, a 90-day uptime calendar and a real incident timeline. Visitors can subscribe to get emailed the moment something changes.

Personal & team workspaces

Solo, or a whole team.

Keep your own sites in a personal workspace, or create teams with Admin, Editor and Member roles. Switch between them from the top bar — everyone who should know, knows.

Questions,
answered.

Everything worth knowing before you start.

Every 15 minutes automatically. You can also run a manual check any time from the dashboard.

You get an instant alert — reason, response code and timestamp — by email and any connected integrations, plus an in-app activity alert.

Yes, as many as you like. Bulk import adds a whole list at once from a file or a paste.

Yes — WebChecky tracks certificate and domain expiry and warns you well before either lapses.

Yes. Publish a public status page with components, an uptime calendar, an incident timeline and email subscriptions.

Yes. Create teams with role-based access and a shared workspace, and switch contexts from the top bar.

Yes — WebChecky includes a minimal, bounded load test you run on demand from any site's dashboard. Pick the virtual users (up to 100) and duration (up to 60s), set optional latency and error targets, and get a pass/fail verdict with per-second charts. It's a spot-check, not a full stress-testing suite — hard caps and auto-abort keep it safe.

Yes. Synthetic monitoring drives a real browser through a whole journey — log in, click through, add to cart — and asserts what should be on the page. Start from a one-click login template, store credentials encrypted, and auto-detect selectors from your own page. If any step fails, the site is marked down with a screenshot captured at the exact failing step.

Nothing — WebChecky is fully cloud-based and runs from your browser.

Yes — a RESTful API with key auth to fetch status and uptime, schedule maintenance and automate checks.

Stop finding out from your customers.

Set up monitoring in under a minute. Free forever, no card required.

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