Less than the cost of one lost backlink

Start free. Upgrade when your portfolio grows.

Free

$0 /mo

Guard your first links

  • βœ“ 25 backlinks
  • βœ“ Daily monitoring
Get Started

Solo Founder

Popular

$9 /mo

For independent creators

  • βœ“ 250 backlinks
  • βœ“ Everything in Free
  • βœ“ AI diagnosis
  • βœ“ Email alerts
  • βœ“ Recovery drafts
  • βœ“ Screenshot evidence
  • βœ“ Daily agent report
Get Started

SEO Freelancer

$29 /mo

For growing consultants

  • βœ“ 1,000 backlinks
  • βœ“ Everything in Solo
  • βœ“ Autonomous mode
  • βœ“ Priority checks
Get Started

Agencies

$79 /mo

For teams & client work

  • βœ“ 5,000 backlinks
  • βœ“ Everything in Freelancer
  • βœ“ Client CC on alerts
  • βœ“ Client-ready reports
Get Started

Prices are in USD. You can change plans or cancel at any time.

Loved by backlink builders

"Sentinel caught 3 dropped links in my first week that I paid over $400 for. The auto-drafted recovery emails got 2 of them back within 48 hours. It pays for itself instantly."

A

Alex M.

SEO Freelancer

"I don't have time to manually check my backlinks. Sentinel runs in the background and only alerts me when action is needed. The AI diagnosis is incredibly accurate."

S

Sarah T.

Solo Founder

"Managing backlinks for 12 clients used to be a nightmare spreadsheet. Now Sentinel monitors all of them, and we use the client-ready reports to prove ROI. A must-have."

D

David K.

Agency Owner

Questions, answered

How is this different from Ahrefs or Linkody? +

Those tools tell you a link died. Sentinel tells you why it died, captures a screenshot as evidence, writes the recovery email to the seller, and follows the whole thing through to resolution. It is a recovery agent, not a passive tracker.

Does Sentinel send emails without my approval? +

Only if you switch it to autonomous mode. The default is assisted mode: Sentinel drafts everything and waits for your one-click approval. You can change modes anytime, and every action appears in your live console.

Where does the seller’s email come from? +

You add it when you add the backlink (or via CSV import). If it’s missing, Sentinel still drafts the email β€” you just paste in the address before sending.

What counts as a "dead" link? +

Sentinel flags five failure modes: the page returns 404/410, the link was removed from the page, the rel attribute became nofollow/sponsored, the anchor text changed, or the link now points somewhere else.

Do you support agencies managing client links? +

Yes. Track links across unlimited client domains, add a client email to any backlink to CC them on alerts, and export client-ready CSV reports.

Is my backlink data private? +

Yes. Your data is scoped to your account with row-level security, and Sentinel never shares seller or pricing information with anyone.

Your backlinks are unguarded right now.

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

Deploy your Sentinel β€” free