u/Avinash-DS

I look after domains for a handful of clients and the thing that stresses me out isn't the loud failures — it's the silent ones. The cert that quietly expired on a staging domain nobody checked. The DNS record someone changed and forgot to mention. The SPF that crept past 10 lookups and started soft-failing. A domain that nearly lapsed because the renewal email went to an inbox no one reads.

Right now I'm juggling separate things for each: one tool for SSL expiry, another for blacklist checks, WHOIS for expiry, something else for DMARC reports. Half of them just *tell me there's a problem* and leave me to figure out the fix at 11pm.

So I'm trying to sanity-check how other people handle this before I over-engineer my own setup:

1. Which of these has actually bitten you — cert expiry, domain expiry, a DNS change you didn't make, DMARC/deliverability, or a blacklist listing? Curious which one *really* hurt.
2. Do you run a bunch of single-purpose tools, or have you found something that does it all? And honestly — do you *want* one dashboard, or do you prefer best-of-breed and stitching it yourself?
3. When you get an alert, is "your cert expires in 7 days" enough, or do you wish it told you the exact fix for your DNS provider?
4. For anyone managing client domains — how do you report "everything's healthy" back to clients without it being a manual chore?

Genuinely after how *you* deal with it.

I look after domains for a handful of clients and the thing that stresses me out isn't the loud failures — it's the silent ones. The cert that quietly expired on a staging domain nobody checked. The DNS record someone changed and forgot to mention. The SPF that crept past 10 lookups and started soft-failing. A domain that nearly lapsed because the renewal email went to an inbox no one reads.

Right now I'm juggling separate things for each: one tool for SSL expiry, another for blacklist checks, WHOIS for expiry, something else for DMARC reports. Half of them just *tell me there's a problem* and leave me to figure out the fix at 11pm.

So I'm trying to sanity-check how other people handle this before I over-engineer my own setup:

1. Which of these has actually bitten you — cert expiry, domain expiry, a DNS change you didn't make, DMARC/deliverability, or a blacklist listing? Curious which one *really* hurt.
2. Do you run a bunch of single-purpose tools, or have you found something that does it all? And honestly — do you *want* one dashboard, or do you prefer best-of-breed and stitching it yourself?
3. When you get an alert, is "your cert expires in 7 days" enough, or do you wish it told you the exact fix for your DNS provider?
4. For anyone managing client domains — how do you report "everything's healthy" back to clients without it being a manual chore?

Genuinely after how *you* deal with it.

Last week I asked Claude to vet a SaaS vendor before signing a contract.

Simple questions:

• Who owns the domain?
• Is the SSL certificate valid?
• Are the email auth records configured correctly?
• Anything suspicious?

Claude gave me a confident answer.

The problem? It got multiple facts wrong.

• Wrong registrar
• Domain age off by two years
• Claimed the SSL certificate was valid through 2025 when it had actually expired three weeks earlier.

I only caught it because I already knew one of the answers.

That made me realize the issue isn't the model—it's stale data. Domain information changes constantly. Registrars change, certificates renew, IPs get blacklisted, DMARC policies evolve. A foundation model simply can't keep up with that.

So I built an MCP server that gives AI agents live domain intelligence instead of relying on training data.

It currently exposes around 25 tools, including:

• WHOIS & RDAP
• DNS records & propagation
• SSL certificate validation
• IP geolocation, ASN, reverse DNS & blacklist checks
• SPF, DKIM & DMARC validation
• AI-readiness audit

It works with Claude Code, Claude Desktop, Cursor, and other MCP-compatible clients.

A couple of examples where live data makes a huge difference:

• "Is this website safe to use?" → the agent checks live domain, SSL, DNS, reputation and trust signals instead of relying on stale knowledge.
• "Why are my emails going to Gmail spam?" → the agent validates SPF, DKIM and DMARC and tells you exactly what's misconfigured.

I'm genuinely curious what others building with MCP have experienced:

• What domain or network questions do your agents still get wrong most often?
• Are there other checks you'd expect from a server like this?
• Has anyone built similar MCP servers for SRE, incident response, or vendor risk?

If anyone wants to check it out https://domainscan.in/mcp