# UpGuard alternative for agencies watching client domains

> For agencies watching client domains, Zalwin's ClientSiteGuard, LookalikeDomainWatch cover external attack surface with a free preview without an account, paid plans from $4.99, and API and MCP access. Sources are public; UpGuard is a separate product we are not affiliated with.

| What you need | Zalwin | UpGuard |
|---|---|---|
| Who it is for | agencies watching client domains | Check UpGuard's site |
| Free preview | Yes, no account needed | Check UpGuard's site |
| Starting price | $4.99 (published on each product page) | Check UpGuard's site |
| Data sources | Read-only TLS, HTTP and public DNS checks of verified domains; Public Certificate Transparency logs (crt.sh) | Check UpGuard's site |
| Records available now | Scan-based tool | Check UpGuard's site |
| API and AI-agent (MCP) access | Yes: REST API and MCP tools | Check UpGuard's site |
| Update cadence | ClientSiteGuard: runs live per scan; LookalikeDomainWatch: runs live per scan | Check UpGuard's site |

- [ClientSiteGuard](https://zalwin.com/clientsiteguard): Daily portfolio monitor for client domains: certificate expiry, home page errors, noindex accidents, DNS/MX/NS changes and SPF/DMARC breakage
- [LookalikeDomainWatch](https://zalwin.com/lookalikedomainwatch): New lookalike domains of your brand from public certificate logs: other TLDs, brand-plus-word and internationalized names

**Is Zalwin affiliated with UpGuard?** No. UpGuard is a trademark of its owner. This page describes Zalwin's tools; for UpGuard's current features and pricing, see its own site.

**What does it cost?** ClientSiteGuard from $4.99; LookalikeDomainWatch from $4.99. Every tool has a free preview.

**Where does the data come from?** Read-only TLS, HTTP and public DNS checks of verified domains; Public Certificate Transparency logs (crt.sh). Public sources only; company-level records.

_UpGuard is a trademark of its owner; Zalwin is not affiliated with it._