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SEOComet

SEO monitoring for publishers and agencies

SEOComet checks your sitemaps, robots.txt, ads.txt, uptime and SSL certificates on a schedule. When one breaks, you hear about it by email, Slack or webhook, before it costs you traffic.

Join the waitlist See pricing Open dashboard

SEOComet isn’t open to the public yet. The free Chrome extension works today.

Mock-up of the SEOComet Incidents list, open and muted incidents: a critical robots.txt block, a muted warning about a sitemap that lost 41% of its URLs, an expiring certificate and an ads.txt change.

One account, three tools

Watch your sites while they’re live, hear when Google changes the rules, and check any page from your browser.

Site monitoring

Monitoring and alerts

Add a site and SEOComet finds its sitemaps, robots.txt and ads.txt, then checks them on a schedule along with uptime and the SSL certificate. Files a site doesn’t have are watched quietly, and none of them count toward your plan. It keeps every version of robots.txt and ads.txt, so you can see the exact line that changed.

Mock-up of a robots.txt diff in SEOComet: the line Disallow: /checkout/ was replaced by Disallow: /, and SEOComet flags it as critical, search engines blocked.
  1. Step 1

    A problem opens an incident

    Marked critical, warning or info. It closes when a later check finds the problem gone, or when you mark it resolved.

  2. Step 2

    One level decides who hears

    Critical only, warnings and critical, or everything, with a different level for any site that needs one. New accounts start on warnings and critical, emailed to the owner.

  3. Step 3

    Slack, webhooks or email

    Alerts when an incident opens, gets worse and is resolved, with reminders while it stays open.

All monitoring and alert features

Google updates tracker

Google’s latest updates

No Google update in progress · the last one ended on 8 Oct 2026

We alert you when a core or spam update starts and when it finishes, so a traffic change has a date to line up with.

See Google update status

Built for newsrooms and agencies

For teams that look after many sites, for themselves or for clients.

  • Many sites in one place

    Pro covers 15 sites and Business covers 75 sites. Every site gets the same checks, and any site can have its own alert level and channels.

  • Share sites, not logins

    Give a client or an editor one site or all of them. Sites shared with you sit in the same list as your own, marked with who shared them, and use the owner’s plan. Jump to any of them with ⌘ K.

  • Roles and an activity log

    Invite editors, developers and clients with Can edit or Can view, on every site or only the ones you choose. Mute an incident so the others know it’s handled, and the log records who paused a check or changed the alerts.

Mock-up of the SEOComet Activity log: who muted an incident, changed the alert level, added a Slack channel and started watching pages on a site, and when the plan changed.

Plans

These are the plans SEOComet will have when it opens. Join the waitlist to hear when you can sign up.

Compare plans and read the FAQ

  • Free

    $0

    No time limit

    Monitoring

    • 1 site
    • 3 watched pages per site
    • Homepage uptime every 5 minutes
    • robots.txt every hour

    Alerts

    • Email alerts
    • Alert level you choose

    Team and history

    • 1 member
    • 7 days of check history
    • 30 days of activity log
    Join the waitlist

  • Pro

    $29 a month

    or $290 a year

    Monitoring

    • 15 sites
    • 25 watched pages per site
    • Homepage uptime every minute
    • robots.txt every 5 minutes

    Alerts

    • Email, Slack and webhook alerts
    • Alert level per account, with per-site overrides

    Team and history

    • 5 members
    • 90 days of check history
    • 90 days of activity log
    Join the waitlist

  • Business

    $99 a month

    or $990 a year

    Monitoring

    • 75 sites
    • 100 watched pages per site
    • Homepage uptime every minute
    • robots.txt every 5 minutes

    Alerts

    • Email, Slack and webhook alerts
    • Alert level per account, with per-site overrides

    Team and history

    • Unlimited members
    • 365 days of check history
    • 365 days of activity log
    Join the waitlist

Prices are in US dollars. Paid plans are billed monthly or yearly through Dodo Payments, and you can cancel any time.

Checking one page? Try our free Chrome extension

The SEOComet SEO Toolbar shows the on-page SEO of the page you’re on: title, meta description, headings, canonical, structured data, links and more. No account needed.

See the Chrome extension

Join the SEOComet waitlist

SEOComet isn’t open to the public yet. Leave your email and we’ll tell you when you can add your sites. The SEO Toolbar Chrome extension is free and works today.

Join the waitlist Get the free extension Open dashboard