Cookie Monitoring
Cookies that appear, disappear or lose their security flags.
A cookie monitor fingerprints a page's Set-Cookie headers — name, domain, path, Secure, HttpOnly and SameSite, never the value — and compares with the previous check.
What it detects
- A new (third-party) cookie
- An expected cookie disappearing
- A cookie losing Secure, HttpOnly or SameSite
How you're alerted
- “Cookies Changed” fires on its own — no rule to write.
Notifications go to any of 8 channels — see notifications.
- Runs from
- MonSPHERE's own workers — no region to pick
- First check
- Records a baseline — nothing is flagged until something changes
- Available on
- Professional · Enterprise and Custom on request
More in Security & Domains
View categorySSL Monitoring
Certificate expiry alerts before anything breaks.
WHOIS Monitoring
Track a domain's own registration expiry and catch an unexpected ownership transfer — independent of its SSL certificate.
Certificate Transparency Log Monitoring
Get notified the moment a new certificate is issued for your domain or a subdomain — catches unauthorized issuance and shadow IT early.
Subdomain Monitoring
Find your domain's subdomains in Certificate Transparency logs and get alerted on new ones and on dangling CNAMEs that could be taken over.
Typosquatting Monitoring
Find registered lookalikes of your domain — typos, homoglyphs, IDN homographs, other TLDs, "brand-login" names — and get alerted when a new one appears.
Port Discovery
Full-range TCP port scan of a host you own to flag any port that's open now but wasn't before — an early warning for an accidentally-exposed service.
DNS Blacklist Monitoring
Check whether an IP (or a hostname's IP) is listed on spam blacklists — catch a reputation problem before it blocks your mail.
Email Authentication
Watch a domain's SPF, DKIM and DMARC records for the silent misconfiguration that tanks deliverability.
Third-Party Script Integrity
Get alerted when a third-party script your page loads changes — an early warning for supply-chain and card-skimming attacks.
Start monitoring everything in minutes
Create a free account, add your first check and get alerted the moment something breaks — no credit card required.