Comparison
Datadog Synthetic Bills Per Test Run and Needs Scripts. Sitewatch Doesn't.
Datadog Synthetic is built for platform engineers who write Playwright and API test scripts, manage check volumes, and operate at enterprise scale — and it bills per run ($5 per 10K API tests, $12 per 1K browser tests), so costs climb with every check. If you're an agency or dev team who just needs to know your marketing sites and SaaS dashboards work after every deploy — without scripting, without usage-based billing, and without onboarding an enterprise platform — Sitewatch is the focused alternative.
- Flat $19/mo for 100 sites vs usage-based $5/10K API + $12/1K browser runs
- Zero scripts — no Datadog synthetic tests to write or maintain
- 60-second setup vs weeks of platform onboarding
A missing file nobody scripted a test for.
Plain-English summary
The page loads, the browser tests pass, and the bill goes up with every run. The script that renders your pricing table is missing and no test covers it.
Datadog
Tests passing
Sitewatch
Critical incident
01Feature comparison
Scripted enterprise monitoring vs script-free website monitoring
| Scenario | Datadog Synthetic | Sitewatch |
|---|---|---|
| Requires test scripts | Yes — Playwright/API scripts required | No — zero scripts, ever |
| Setup time | Weeks (platform onboarding, scripting) | 60 seconds (paste URL, done) |
| Price | $5/10K API + $12/1K browser runs (usage-based) | Free / $9 / $19 per month flat |
| Automatic asset discovery | No — only what you script | Yes — every JS, CSS, image, font |
| Catches files served as the wrong kind of file | Only if explicitly asserted in script | Automatic on every check |
| Plain-English diagnosis | No — drill into APM/logs manually | Yes — typed incidents with fix playbooks |
| Deploy hook integration | Via CI/CD pipeline setup | Vercel, Netlify, GitHub Actions (built-in) |
| Suitable for non-technical teams | No — scripting knowledge required | Yes — UI-driven, no code |
| Stack detection | No | 23+ platforms auto-detected |
| Status pages | No (use Statuspage.io separately) | Branded + password-protected (included) |
| Security header grading | No | Yes (5 headers, every check) |
| APM / distributed tracing | Yes (full platform) | No |
| Log management | Yes (full platform) | No |
| Infrastructure monitoring | Yes (full platform) | No |
| Protection coverage scoring | No | Yes — names the pages you are not monitoring |
| Content / keyword loss detection | Only if explicitly asserted in script | Yes — regression-only, up to 5 phrases per page |
| Robots.txt regression detection | No | Yes — catches an accidental Disallow: / |
| DNS (MX/CNAME) change detection | No | Yes — unique to Sitewatch |
| Sitemap URL health | No | Yes — weekly broken-URL audit |
| Target audience | Enterprise SRE/DevOps teams | Agencies, dev teams, non-technical owners |
Requires test scripts
- Datadog Synthetic:
- Yes — Playwright/API scripts required
- Sitewatch:
- No — zero scripts, ever
Setup time
- Datadog Synthetic:
- Weeks (platform onboarding, scripting)
- Sitewatch:
- 60 seconds (paste URL, done)
Price
- Datadog Synthetic:
- $5/10K API + $12/1K browser runs (usage-based)
- Sitewatch:
- Free / $9 / $19 per month flat
Automatic asset discovery
- Datadog Synthetic:
- No — only what you script
- Sitewatch:
- Yes — every JS, CSS, image, font
Catches files served as the wrong kind of file
- Datadog Synthetic:
- Only if explicitly asserted in script
- Sitewatch:
- Automatic on every check
Plain-English diagnosis
- Datadog Synthetic:
- No — drill into APM/logs manually
- Sitewatch:
- Yes — typed incidents with fix playbooks
Deploy hook integration
- Datadog Synthetic:
- Via CI/CD pipeline setup
- Sitewatch:
- Vercel, Netlify, GitHub Actions (built-in)
Suitable for non-technical teams
- Datadog Synthetic:
- No — scripting knowledge required
- Sitewatch:
- Yes — UI-driven, no code
Stack detection
- Datadog Synthetic:
- No
- Sitewatch:
- 23+ platforms auto-detected
Status pages
- Datadog Synthetic:
- No (use Statuspage.io separately)
- Sitewatch:
- Branded + password-protected (included)
Security header grading
- Datadog Synthetic:
- No
- Sitewatch:
- Yes (5 headers, every check)
APM / distributed tracing
- Datadog Synthetic:
- Yes (full platform)
- Sitewatch:
- No
Log management
- Datadog Synthetic:
- Yes (full platform)
- Sitewatch:
- No
Infrastructure monitoring
- Datadog Synthetic:
- Yes (full platform)
- Sitewatch:
- No
Protection coverage scoring
- Datadog Synthetic:
- No
- Sitewatch:
- Yes — names the pages you are not monitoring
Content / keyword loss detection
- Datadog Synthetic:
- Only if explicitly asserted in script
- Sitewatch:
- Yes — regression-only, up to 5 phrases per page
Robots.txt regression detection
- Datadog Synthetic:
- No
- Sitewatch:
- Yes — catches an accidental Disallow: /
DNS (MX/CNAME) change detection
- Datadog Synthetic:
- No
- Sitewatch:
- Yes — unique to Sitewatch
Sitemap URL health
- Datadog Synthetic:
- No
- Sitewatch:
- Yes — weekly broken-URL audit
Target audience
- Datadog Synthetic:
- Enterprise SRE/DevOps teams
- Sitewatch:
- Agencies, dev teams, non-technical owners
02The cost of checking more
Per-run billing makes thoroughness expensive.
Every extra check has a price.
Datadog bills per test run, so raising check frequency or adding sites raises the bill in direct proportion. The tension is structural: the more carefully you watch, the more it costs — which is a strange incentive for a safety net.
03An honest answer
Which should you actually choose?
Datadog is an enterprise platform and this is not a like-for-like fight. Here is the honest breakdown.
If you need…
Recommendation
Sitewatch probably isn't for you if…
- You are already on Datadog for infrastructure and adding synthetics there is genuinely simpler than another vendor.
- You need scripted multi-step journeys, which we do not do.
- Your team has the engineering time to write and maintain those scripts, and wants that level of control.
- Your web properties are a small part of a much larger platform estate.
You don't need an enterprise platform to monitor your website
If Datadog Synthetic feels like overkill for your use case — Sitewatch monitors your production site automatically, from $0.
04Common misconceptions
What the comparison gets wrong.
Myth — This is a fair fight.
Reality — It is not. Datadog is an enterprise observability platform; we do one job. We are the cheaper answer only if that one job is what you actually need.
Myth — Usage-based billing works out cheaper at low volume.
Reality — It can — right up until you increase check frequency or add sites. Per-run pricing means the cost of watching more is never flat, which is the specific problem our pricing avoids.
Myth — Browser tests already check every resource.
Reality — They check what the script asserts on. Anything added to the page after the test was written is invisible to it.
Myth — Datadog is the right call at real scale.
Reality — Yes. If you have an SRE team and an existing Datadog estate, adding synthetics there is usually the better decision.
Comparison FAQ
Datadog Synthetic is the better choice when you need scripted multi-step user flow testing (login, checkout, form submission), deep APM integration, infrastructure-as-code via Terraform, or a unified platform covering infrastructure, logs, and RUM alongside synthetic checks. If your team has engineers who write and maintain test scripts and you need that depth, Datadog Synthetic is purpose-built for it.
No. Datadog is a comprehensive observability platform covering infrastructure, APM, logs, and more. Sitewatch replaces one narrow slice: website-level monitoring. If you use Datadog Synthetic to check if your marketing sites work, Sitewatch does that without scripting and at a fraction of the cost.
Only for website monitoring. Datadog's synthetic monitoring requires writing test scripts and scales in cost with check volume. Sitewatch auto-validates every resource on your pages with zero scripting and flat monthly pricing. For agencies and smaller dev teams, Sitewatch covers the website layer without the enterprise overhead.
Datadog monitors your infrastructure. Sitewatch monitors the output — the actual pages your visitors see. A healthy server can still serve a page with a missing script, a file of the wrong kind, or a redirect that loops. Sitewatch catches these at $19/month ($190/yr annual) without adding to your Datadog Synthetic script burden.
Datadog Synthetic: ~$5 per 10K API test runs and ~$12 per 1K browser test runs, plus the engineering cost of writing and maintaining test scripts. For 100 sites checked every 5 minutes with browser tests, costs add up fast. Sitewatch: $19/month flat for 100 sites with 5-minute checks ($190/yr with annual billing — pay for 10, get 12). No per-test billing, no scripting overhead, no usage surprises.
Sitewatch is UI-driven with deploy hook integrations for Vercel, Netlify, and GitHub Actions. It does not have a management API or Terraform provider. For teams that need infrastructure-as-code, Datadog has the edge. For teams that need fast, simple setup — Sitewatch is ready in 60 seconds.
06Explore more
Live monitoring
Sitewatch is watching these sites right now
Real sites we check every few minutes for the failures uptime tools miss — the pages that stay “up” while something quietly breaks.