認証
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このエンドポイントは組織IDを受け付けません。お使いのキーによって所属する組織がすでに特定されており、レスポンスはその組織にスコープされます。
試してみる
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curl -X GET https://api.zinndigital.com/v1/sites/{siteId}/vitals \
-H "Authorization: Bearer zdk_live_…"ログインしていますか？ダッシュボード内のAPIコンソールでは、実際の組織IDやお客様ご自身のキーが自動入力され、ライブAPIに対してリクエストが実行されるため、実際のレスポンスを確認することができます。 API コンソールでこのエンドポイントを開く
詳細
The site's newest Core Web Vitals reading — LCP, CLS and INP for its **homepage**, with the "good / needs improvement / poor" band for each and for the reading as a whole. Backs the Performance tab's vitals card and the free SEO Basics tile, both of which are sold as included on every plan and every site. RLS-scoped to a site the caller can view (`sites.view`); an out-of-scope or unknown id is a `404`, exactly like `getSite`. **Homepage only, by design.** Every surface that sells this sells *homepage* Core Web Vitals. Measuring every URL of every site is a different product. **Collection is asynchronous.** Readings are taken off the request path by a scheduled collector and read back here — a live Lighthouse run would be a 20-second uncached external call on a tab that mounts for every site (CLAUDE.md §2.16). Until a site has been measured, `available` is `false`, every metric is `null` and every band is `unknown`. **`source` must be rendered.** A `lab` reading is a synthetic Lighthouse run; a `field` reading is what real Chrome users experienced (Chrome UX Report) and is what Google ranks on. Field data does not exist for sites below CrUX's traffic threshold — which is most low-traffic sites — so `lab` is the coverage tier. Presenting a lab score as though real users produced it is a false claim about what visitors experienced, so clients must label which one they are showing.
パラメータ
| 名前 | タイプ | 必須 | これがその内容です |
|---|---|---|---|
siteId (path) | Uuid | はい | Site ID (UUIDv7). |
返信
| 名前 | タイプ | 必須 | これがその内容です |
|---|---|---|---|
available | boolean | はい | Whether any vitals reading exists for this site yet. |
url | string | はい | The exact URL measured. Empty when unavailable. |
source | string<field, lab, > | はい | `field` = Chrome UX Report (real users, what Google ranks on); `lab` = a synthetic Lighthouse run. Clients MUST label which is shown. Empty string when unavailable, following `p… |
field_available | boolean | はい | Whether real-user (field) data exists for this site at all, independent of which reading is returned — so the UI can say "no real-user data yet" while still showing the lab number. |
lcp_ms | object | はい | Largest Contentful Paint, p75, milliseconds. Good ≤ 2500, poor > 4000. |
cls_milli | object | はい | Cumulative Layout Shift, p75, in **thousandths** (0.083 → `83`). An integer so no band comparison is ever made against a float at the 0.1/0.25 boundaries; clients render `cls_mi… |
inp_ms | object | はい | Interaction to Next Paint, p75, milliseconds. Good ≤ 200, poor > 500. INP replaced First Input Delay as a Core Web Vital in March 2024; FID is retired and is deliberately not re… |
ttfb_ms | object | はい | Time to First Byte — a diagnostic, not a Core Web Vital. |
fcp_ms | object | はい | First Contentful Paint — a diagnostic, not a Core Web Vital. |
performance_score | object | はい | Lighthouse performance score, 0–100. Always `null` on a `field` reading — the Chrome UX Report computes no score, and inventing one would present a number Google never produced. |
accessibility_score | object | はい | Lighthouse accessibility score, 0–100 (docs/85 §2.1). Lighthouse computes all four of its categories from a **single** page load, so this costs about a second on a 10–30 s run —… |
best_practices_score | object | はい | Lighthouse best-practices score, 0–100 — mixed content, deprecated APIs, console errors. `null` on a `field` reading. |
seo_score | object | はい | Lighthouse SEO score, 0–100. `null` on a `field` reading. |
stack_packs | string[] | はい | The technology stacks Lighthouse detected on this run (`wordpress`, `woocommerce`, …). **Ids only.** Lighthouse also ships stack-specific remediation *text*; that is untranslate… |
band | VitalsBand | はい | A Core Web Vitals verdict against Google's published p75 thresholds. The overall `band` is the **worst** of the three measured metrics, because that is how Google assesses a pag… |
lcp_band | VitalsBand | はい | A Core Web Vitals verdict against Google's published p75 thresholds. The overall `band` is the **worst** of the three measured metrics, because that is how Google assesses a pag… |
cls_band | VitalsBand | はい | A Core Web Vitals verdict against Google's published p75 thresholds. The overall `band` is the **worst** of the three measured metrics, because that is how Google assesses a pag… |
inp_band | VitalsBand | はい | A Core Web Vitals verdict against Google's published p75 thresholds. The overall `band` is the **worst** of the three measured metrics, because that is how Google assesses a pag… |
measured_at | object | はい | — |
opportunities | SiteVitalsOpportunity[] | はい | What is actually making this page slow, **largest saving first** — the "why" behind the numbers above. ⚠️ An empty array does **not** mean "nothing to fix". It means this readin… |
screenshots | SiteVitalsScreenshots | はい | What the page looked like while it loaded — the filmstrip and the finished render. `available` is reported separately from the parent envelope's flag because a perfectly good me… |
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