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Cassian™ vs Pingdom

A scripted checkout can pass while real cards are being declined.

Pingdom is the most capable tool on this comparison, and the only one that can genuinely script your checkout: its synthetic transaction monitoring drives a real Chrome browser through multi-step flows and alerts when they break. That is a real answer to the “site is up, store isn’t selling” problem, and it deserves saying plainly. Where the two approaches differ is what happens when the flow works for a test card and not for your customers.

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Free plan, no credit cardRead-only connection3 of 9 rows go the other way
The synthetic test bought the same product every five minutes. Real customers in one country could not.

Side by side

Every row says which tool it favours, including the 3 that favour Pingdom. If something here is out of date, tell us and we'll correct it.

Scripted checkout testing

Pingdom
Cassian™
Not offered. Checkout health is inferred from order flow.
Pingdom
Yes — multi-step transactions recorded or built step by step, run in a real browser from global probe servers.

Real-user monitoring

Pingdom
Cassian™
Not offered. Core Web Vitals come from PageSpeed Insights, with Google’s field data where available.
Pingdom
Included, with real visitor performance data segmented by page and region.

Check regions

Pingdom
Cassian™
One region.
Pingdom
Global probe network.

Detects a decline that only affects real customers

Cassian™
Cassian™
Yes — order volume against a weighted historical baseline catches any cause, including ones a test transaction would not reproduce: a gateway declining real cards, a regional payment method failing, fraud rules over-triggering.
Every plan, including free
Pingdom
Only if the scripted flow reproduces the failing case. A test purchase that succeeds does not prove real ones do.

Detects price errors

Cassian™
Cassian™
Yes — daily catalog diff across every variant, with severity classification and bulk-change grouping.
Every plan with a connected store
Pingdom
No. A transaction check can assert a price on one page it visits; it does not read the catalog.

Detects a sold-out bestseller

Cassian™
Cassian™
Yes, on platforms that expose inventory tracking, with days-to-stockout projected from a 14-day sales velocity.
WooCommerce and BigCommerce only
Pingdom
No. Inventory levels are not read; a sold-out product page still loads and still passes a transaction check up to the point of purchase.

Maintenance as the store changes

Cassian™
Cassian™
Nothing to maintain — order flow is read from the platform API, so a theme change cannot break the check.
Pingdom
Scripted flows need updating when selectors, steps or the theme change.

Store SEO, schema and content checks

Cassian™
Cassian™
Deterministic page checks on every scan, link and image validation, product schema completeness.
Every plan
Pingdom
Not in scope.

Entry price

Comparable
Cassian™
Free plan; $49/month Analyst; $129/month Protector where availability begins.
Pingdom
Paid only, with entry plans in the region of $10–15/month and transaction monitoring priced separately.

Pingdom details checked 4 September 2026, from Pingdom transaction monitoring and Pingdom synthetic monitoring. Plans and features change; we recheck periodically and correct errors on request. Pingdom is a trademark of its owner and is named here for identification only.

Choose Pingdom if…

  • You want a synthetic transaction that actually clicks through add-to-cart and checkout on a schedule.
  • You need real-user monitoring with regional performance segmentation.
  • You are monitoring a wider estate than one store — APIs, apps, marketing sites — from a global probe network.
  • You have engineering time to maintain scripted flows as the storefront changes.

Choose Cassian™ if…

  • You want the failure caught however it happens, including causes a test transaction would sail past.
  • You want prices, stock and catalog changes watched, not just flows.
  • You would rather nothing needed maintaining when the theme changes.
  • You want a free starting point that already covers zero-order alerting.

FAQ

Common questions

Isn’t scripted checkout testing strictly better than inferring from order volume?
It is better at one thing and worse at another. A scripted test catches a broken flow within minutes, before anyone has failed to buy — genuinely valuable. What it cannot do is notice failures the script does not reproduce: a payment gateway declining real cards while accepting the test one, a regional payment method failing, fraud rules rejecting genuine orders, or a shipping rule that returns no rates for one country. Order volume catches all of those, because it measures the outcome rather than a rehearsal of it. The two are complementary, and if you can afford both, run both.
Does Cassian™ do real-user monitoring?
No. Performance comes from PageSpeed Insights run daily, with Google’s real-user field data included where it is available for your domain. That is lab data plus aggregate field data, not per-session RUM. If per-session real-user monitoring matters to you, Pingdom does it and Cassian™ does not.
Which should a small store buy first?
If you are choosing one, start with the checks that need no maintenance and cover the widest set of failures — order flow, prices, availability. Add scripted transaction monitoring when you have the engineering time to keep the scripts current, because a stale script that silently stopped testing the real flow is worse than no script.

Keep comparing

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