For SEO freelancers & agencies

You paid for those backlinks.
Sentinel makes sure you keep them.

Your AI agent checks every link daily, catches removals instantly, figures out what happened, and drafts the recovery email β€” before you even wake up.

Guard 25 backlinks free Β· No credit card Β· Set up in 2 minutes

Sentinel is on duty live console

Link sellers are counting on you not checking

You spend $50–$500 per placement. Then pages get deleted, links quietly turn nofollow, anchors get swapped. Industry studies keep finding that a meaningful share of paid links disappear within a year β€” and most buyers never notice, because checking hundreds of pages by hand is nobody's idea of a job. That's exactly the kind of job an agent should do.

Meet your agent

Sentinel works while you sleep. Literally.

Every night, your agent patrols every backlink you've told it to guard. Five things happen without you lifting a finger:

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Checks every link, every day

HTTP status, link presence, anchor text, dofollow attribute β€” verified daily for every backlink you guard.

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Diagnoses what happened

Not just "link lost." Sentinel tells you: "The page was deleted during a site redesign. 12 other pages on this domain also went down."

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Captures evidence

Before/after screenshots, stored automatically. Proof for refund requests and client reports.

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Drafts your recovery emails

Polite, firm, or refund-request β€” referencing your exact purchase details. You approve, Sentinel handles the rest.

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Reports every morning

One email. What was checked, what changed, what Sentinel did about it, and what needs your sign-off.

8:00 AM πŸ“¬ Report delivered.
1 draft awaiting your approval.

Everything your agent does shows up in your live console β€” in real time.

You're in control

An agent that asks before it acts

Sentinel never sends an email without your sign-off β€” unless you tell it to. Choose how much autonomy your agent gets, and change it anytime.

Assisted default

Sentinel detects, diagnoses, and drafts. You review and approve each outreach email with one click.

Autonomous

Sentinel sends the polite recovery email to the seller the moment an issue is confirmed, and reports back on what it did. Replies go straight to your inbox.

Ahrefs tells you a link died.
Sentinel gets it back.

Sentinel Big SEO suites
Built for paid link tracking βœ“ Purpose-built βœ— General SEO suite
Watches links you already bought βœ“ Your exact URLs, daily ~ Index-based discovery
Explains why a link died βœ“ AI diagnosis βœ—
Drafts seller recovery emails βœ“ Three tones, auto-drafted βœ—
Screenshots as evidence βœ“ Automatic βœ—
Price Free β€” $79/mo From $129/mo

Not a replacement for research suites β€” Sentinel does one job completely: guarding the links you bought.

Your backlinks are unguarded right now.

Deploy your Sentinel in 2 minutes. It starts checking immediately.

Deploy your Sentinel β€” free