ssl shield

Continuous certificate monitoring

An SSL certificate is an essential part of website security. We check all your SSL certificate expiration dates & alert any change we detect. We give you actionable & user friendly alerts so you know what to fix.

Start monitoring

30 day free trial
No credit card required

ssl certificate meta
01

Taking away the complexity of SSL monitoring

Clean reporting of every certification step

The world of SSL/TLS has become very complex. We can take away that complexity for you and present you with an easy-to-use monitoring solution for your SSL certificates.

We'll monitor your website's certificate expiration dates and send you a notification when they're about to expire.

the main reasons websites go down

  • Certificates form a chain of trust. We don't only monitor your domain (leaf) certificate, but every intermediate too.
  • Other monitoring tools often only check the domain certificate.
certificate-error-message
02

Your visitors will get an error message

if a certificate is revoked or outdated

If you're using old security algoritms, some browsers will block access to your site. We detect those old ciphers and will report them to you.

Error messages like this negatively affect your brand image (and ultimately, your bottom line) as they make your website feel inaccessible and unthrustworthy. Keeping track of your certificates avoids these unpleasant surprises.

SITE OFFLINE
urlxyz.com is down
Component Value
Url https://urlxyz.com
Error description Operation timed out after 5001 milliseconds with 0 bytes received
re-run check without leaving Slack!
Oh Dear01:45 P.M.
urlxyz.com seems down!
Error: HTTP/1.1 404 Not found
Downtime verified from Paris, France and Bangalore, India
Full report: https://ohdear.app/sites/8716/history/runs/875879191
Check again
Initiate follow-up actions directly in Telegram!
Oh Dear01:45 P.M.
⚠️ urlxyz.comseems down!
Error: HTTP/1.1 404 Not found
Downtime verified from Paris, France and Bangalore, India
👀 Full Report
🔄 Check again
😴 Snooze
Access full reports straight from Discord!
Oh Dear01:45 P.M.
urlxyz.com has recovered after 2m. Full report: https://ohdear.app/sites/87/history/runs/875879191
Paris, France - Today at 10:56
urlxyz.com seems down!
Error: HTTP/1.1 404 Not Found
act directly from within Microsoft Teams!
logo
Oh Dear01:45 P.M.
urlxyz.com seems down!
Error: HTTP/500 Downtown verified from Paris, France and Frankfurt
View full report
Reply
Messages
now
Oh Dear!

urlxyz.com has recovered after 2m. full report: https://ohdear.app/sites/83/checks/411

Messages
now
Oh Dear!

urlxyz.com seems down! Error: HTTP/500 Downtown verified from Paris, France and Frankfurt

Messages
now
Oh Dear!

Pushover has been successfully enabled. We'll notify you when something goes wrong.

Messages
now
Oh Dear!

urlxyz.com has recovered after 2m. full report: https:/ohdear.app/sites/83/checks/411

Messages
now
Oh Dear!

urlxyz.com has recovered after 2m. full report: https:/ohdear.app/sites/83/checks/411

Messages
now
Oh Dear!

Text messages for urlxyz.com have been successfully enabled. We'll notify you when something goes wrong.

CALLING WEBHOOK
$_TOKEN="your API token"
$ curl -X GET "https://notifyservicexyz.com/api/alert/urlxyzcom" \
-H "Authorization: Bearer $_TOKEN" \
-H "Accept: application/json" \
-H "Content-Type: application/json"
Opsgenie
now
Oh Dear!

urlxyz.com has recovered after 2m. full report: https://app.opsgenie.com/sites/83/checks/411

Opsgenie
now
Oh Dear!

urlxyz.com seems down! Error: HTTP/500 Downtown verified from Paris, France and Frankfurt

Opsgenie
now
Oh Dear!

Opsgenie has been successfully enabled. We'll notify you when something goes wrong.

PagerDuty
now
Oh Dear!

urlxyz.com has recovered after 2m. full report: https://pagerduty.com/sites/83/checks/411

PagerDuty
now
Oh Dear!

urlxyz.com seems down! Error: HTTP/500 Downtown verified from Paris, France and Frankfurt

PagerDuty
now
Oh Dear!

PagerDuty has been successfully enabled within Oh Dear. Notifications are enabled.

03

Choose how we let you know

when our crawler finds broken links or mixed content

Receive our notifications on your preferred platform. Via email, SMS, Slack, Discord, Opsgenie, PagerDuty, Microsoft Teams, Pushover, webhooks,… we can notify you wherever your team is active.

Take notifications to the next level: only notify who needs notifying by assigning responsibilities to different team members.

Stop worrying, start monitoring

Start a no-strings-attached 30-day free trial. You're all set in less than a minute.
(No credit card needed.)

Not convinced yet? Need help?
Get in touch via support@ohdear.app.

Let’s get technical (if you’re into that)

You don’t need to be computer savvy to set up our tool. But if you are, we’re happy to explain exactly how it works and how you can customize Oh Dear to your specific needs.

ssl certificate meta dark

Certificate Chain Validation

how we crawl your site pages

A chain is only as strong as its weakest link. SSL certificates are the prime example.

We don't just monitor your domain certificate but will check every intermediate certificate too, up to the root certificate, to verify the chain of trust.

We look for SHA-1 certificates, revoked or distrusted root certificates, ... each of these can cause your site to be unavailable. And none of those changes are in your control, these decisions get made by the Certificate Authorities (CAs) or the browsers themselves, coordinated via the CAB Forum.

In a chain, every certificate could cause a problem for your website. We monitor each and every one of them.

slack message

Certificate Change Detection

a clear before/after comparison

When a certificate is changed, we'll let you know straight away. We'll show a clear before/after comparison of the certificates we found, so you can verify that this change is both intentional and correct.

A changed certificate could be a renewal, but might also be a move to a new server (with a DNS change) or a domain hijack. We'll make sure you see each change!

raw output certificate

Certificate Transparency Monitoring & Alerting

monitoring Certificate Logs

All issued SSL certificates need to be published to known Certificate Logs. As a result, every certificate issued becomes public knowledge.

We monitor those Certificate Transparency Logs and will alert you whenever a new certificate is issued for one of your domains. You can decide if it was on purpose by you or from a malicious actor and act accordingly.

Really into the nitty gritty details?

Want to get into the nitty gritty details of our monitoring?
Have a look at our documentation.

Wait, there’s even more

Performance monitoring

We provide highly detailed performance monitoring and insights. We'll notify you as soon as we detect your website is getting slow.

Learn More

Fast and insightfull notifications

Get notified instantly as soon as we detect an issue or an important change. Enable any channel you use, you're in full control.

Learn More

Scheduled task monitoring

Your cron jobs (Linux) and scheduled tasks (Windows) are the heart of your data processing. We can monitor every single one of them.

Learn More
broken link base broken link image 1 broken link image 2

Broken page & mixed content

We crawl and index your entire website, just like Google. As soon as we detect a broken link on your site we will let you know.

Learn More
dns dropwdown

DNS record monitoring

Receive a notification whenever your DNS records are modified - intentionally or maliciously - so you can act and verify faster.

Learn More
DISK SPACE
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REQUEST QUEUE
server

Application health monitoring

A lot can go wrong inside your app and server. Disk space may fill up, or the database may go down. We'll notify you when something is off.

Learn More
takeaway.com
takeaway.com
Today
No incidents on this day

Beautiful public status pages

In times of crisis, a public status page allows you to communicate to your clients. We'll host your status page so it's always available.

Learn More
Site
Performance
Uptime
Certificate
laravelGlobalUptimelaravel.com
272ms
Up
Ok
ignGlobalUptimeign.com
272ms
Up
Ok
takeawayGlobalUptimetakeaway.com
272ms
Up
Ok

Global uptime checking

When your site goes down we'll let you know instantly. Now you can act before your or your client's brand reputation takes a hit.

Learn More
⚠️ Domain expired / transfer allowed
takeaway.com

Domain monitoring

We can check how long your domain is still registered. If your renewal date is close, we'll notify you. This will avoid you losing your domain.

Learn More
Lighthouse

Lighthouse SEO monitoring

We track the speed & performance of your website over time. If we detect your website is suddenly slower, we'll let you know.

Learn More
Sitemap

Sitemap monitoring

Your cron jobs (Linux) and scheduled tasks (Windows) are the heart of your data processing. We can monitor every single one of them.

Learn More
mobile preview

Start monitoring instantly

Start a no-strings-attached 30-day free trial. You're all set in less than a minute.
(No credit card needed.)

Not convinced yet? Need help?
Get in touch via support@ohdear.app.