Tarazu -Shopify Free Shipping & Discount Tester
Pricing
from $30.00 / 1,000 scenarios
Test your Shopify store's free-shipping threshold, discount codes, automatic discounts and cart totals over the public Ajax Cart API. Boundary carts, exact money math and evidence for every verdict. Never opens checkout or places orders.
Demo store runs a built-in test suite against a simulated Shopify store: free, no store needed, and every store field below is ignored. My store tests the store in Store URL, which you must own or be authorized to test.
Your storefront address with https:// and nothing after the domain, e.g. https://your-store.myshopify.com or https://www.yourbrand.com. Shopify admin → Settings → Domains lists your domains. Put a market subfolder such as /en-in in Locale path instead.
Only for password-protected stores (development, staging or pre-launch). Shopify admin → Online Store → Preferences → Password protection shows it. Stored encrypted and never written to results or logs.
Two-letter country code (ISO 3166-1, capitals) of the market to test, e.g. IN. Tarazu selects this market through Shopify's localization form before building carts, so prices and currency match it. Leave empty to use the store's default market.
Three-letter currency code (ISO 4217, capitals), e.g. INR. Adds a currency check to every scenario. If the cart uses another currency, that scenario's money checks are reported as inconclusive instead of being compared across currencies.
Market subfolder put in front of every request, e.g. /en-in when your India market lives at yourbrand.com/en-in. Leave empty for the primary market. Shopify admin → Settings → Markets shows each market's domain or subfolder.
Two-letter country code of the address Tarazu requests shipping rates for, e.g. IN. Defaults to Market country. Required for free-shipping tests.
Province or state of the shipping address as a code or name, e.g. MH or Maharashtra. Shopify needs it for shipping rates in many countries, including India, the USA and Canada.
Postal or ZIP code of the shipping address, e.g. 400001. Use an address inside the shipping zone whose rates you want to test.
Order amount from which shipping should be free, in the store currency's major units with a dot for decimals, e.g. 4000 or 4000.00 (no currency symbol, no thousands separators). Shopify admin → Settings → Shipping and delivery → your free rate's price condition shows it.
Which amount should count toward the threshold: the cart total after discounts, or the subtotal before discounts.
On: a cart of exactly the threshold (e.g. 4000.00) should ship free (amount ≥ threshold). Off: only carts above it ship free (amount > threshold).
Optional. When set, only a rate with exactly this name and price 0 counts as free shipping, e.g. Free Shipping. When empty, any rate priced 0 counts.
Up to 10 variant IDs Tarazu may combine into the boundary carts; a mix of prices makes exact boundaries easier to hit. To find a variant ID, open Shopify admin → Products, choose the product and click the variant: the number at the end of the page URL is the variant ID.
[][ "41234567890123", "41234567890456"]Optional, up to 5 discount codes applied to every boundary cart, e.g. to check that a code which takes the cart below the threshold also removes free shipping. One code per entry; codes are case-insensitive.
[][ "FLAT500"]One test cart per entry, each with one discount code: code, lines (variant IDs and quantities), optional expectApplicable (default true) and optional expectedAmount (the discount in major units). Example: [{"code": "FLAT500", "lines": [{"variantId": "41234567890123", "quantity": 2}], "expectedAmount": "500.00"}]. A code the cart accepts can still be rejected at checkout if it is limited to certain customers.
[][ { "code": "FLAT500", "lines": [ { "variantId": "41234567890123", "quantity": 2 } ], "expectApplicable": true, "expectedAmount": "500.00" }]Explicit test carts. Each scenario has an id (lowercase letters, digits, - or _), an optional label, lines (1 to 20 of {"variantId": "…", "quantity": 1}), optional discountCodes (up to 5) and checks (1 to 20). Check types: free_shipping (threshold, inclusive, basis, rateName), discount_code (code, expectApplicable, expectedAmount), automatic_discount (title, expectPresent, expectedAmount), cart_total (field plus expected or computeFrom), line_price (variantId, expectedUnitPrice, field), variant_available (variantId, expectAvailable), currency (expected) and cart_page_total (selector). Checkout-only types (cod_available, payment_method, tax_amount, checkout_total, shipping_discount) are accepted and always reported as unsupported.
[][ { "id": "mug-monday", "label": "Mug Monday takes 10% off the mug", "lines": [ { "variantId": "41234567890789", "quantity": 1 } ], "checks": [ { "type": "automatic_discount", "title": "Mug Monday", "expectedAmount": "49.90" }, { "type": "cart_total", "field": "total_price", "computeFrom": { "base": "original_total_price", "steps": [ { "kind": "percentage", "value": "10" } ], "rounding": "half_up" } } ] }]Upper limit of test carts per run (boundary carts, discount checks and your scenarios together), 1 to 20. Input that could create more scenarios than this is rejected before any request is sent.
Run time budget, 30 to 900 seconds. Tarazu stops starting new scenarios when 20 seconds or less remain and reports which scenarios were not covered.
Pause between requests to your store in live mode, 0 to 10000 milliseconds, so Shopify's bot protection does not throttle the test. The demo store uses no delay.
Usually not needed for your own store; a crawler-access signature (below) is the better way past Shopify's bot protection. Apify Proxy traffic is charged by Apify.
{ "useApifyProxy": false}Optional, recommended for live tests. In Shopify admin open Online Store → Preferences → Crawler access → Create signature, copy the Signature-Input value here and the Signature value into the next field. Signed requests identify Tarazu to Shopify's bot protection and avoid 429 throttling. A signature expires after at most 3 months.
The Signature value of the same crawler-access signature. Both values are sent with Signature-Agent: "https://shopify.com". Stored encrypted and never written to results or logs.