Your website broke 3 hours ago. Your client just texted.
Here's what happened: A developer updated the homepage. Accidentally broke a link to your highest-traffic landing page. Google noticed. Rankings dropped. Visitors bounced. Revenue leaked.
Nobody caught it because your uptime monitor said everything was "operational."
whatkilledthedog watches everything that actually matters
Not just "is the server responding." Everything that can silently hurt your business:
Every link on every page
Not just sampling. Not just the homepage. Every internal link, external link, image, stylesheet, and JavaScript file. If it can 404, we'll find it.
Performance changes that matter
Real changes that affect real users. On every single page. Did the your most converting landing page suddenly take 2x longer to load? We'll let you know right away.
Configuration that can kill you
Robots.txt blocking important pages? Sitemap returning 404? Missing redirects for your ad campaign URLs? SSL certificate expiring next week? We catch what others miss.
The stuff you forget to check
Meta descriptions gone missing. Canonical URLs pointing nowhere. Security headers misconfigured. DNS about to expire.
One tool. One dashboard. One place to know everything's actually okay.
Websites are fragile. One tiny mistake can wreck months of work.
A broken link on a page that drives 40% of your traffic. An SSL certificate that expires during your vacation. A robots.txt change that blocks Google. A performance regression that doubles load time and tanks your SEO.
These aren't edge cases. They're Tuesday.
The worst part? You find out from the worst possible source. Your client. Your CEO. That one user who tweets. Anyone but your monitoring.
You've got monitoring tools. Probably several. One for uptime. Another for broken links. Maybe something for performance. Definitely getting those SSL expiration emails you ignore.
But stuff still breaks. And you're still the last to know.
Built for developers and agencies who've been burned before
You know that feeling when a client asks "is everything okay with the site?" and you have to check four different tools? We fixed that.
Check unlimited pages
Not "up to 100 URLs" nonsense. Your whole site. Every page you care about.
Know what actually broke
Not just "Error detected." Specific element. Specific page. Specific time.
See history that helps
When did performance start degrading? Which deploy broke the links? Track changes over time, not just current status.
Fix things faster
Actionable information, not vague warnings. Direct links to broken resources. Before/after performance comparisons. Clear next steps.
Coming Soon
We're currently in private beta. Be the first to know when we launch.
No spam, ever. Just one email when we launch. Unsubscribe anytime.
What to expect:
- •Simple, honest pricing (no surprises)
- •Comprehensive website monitoring from day one
- •Lifetime discounted pricing for early customers
The bottom line
Your current monitoring is lying to you. It says everything's fine while links break, performance degrades, and configurations drift.
whatkilledthedog tells you the truth. About everything. Before it becomes a fire.
For the price of two coffees a month, you’ll never have to hear “did you know the website's broken?" from someone else again.