> For the complete documentation index see https://domscan.net/llms.txt. Markdown versions of every docs page are available by appending .md to the page URL. Source: https://domscan.net/fr/docs/products/javascript-seo # API API de contrôle du rendu JavaScript SEO Comparez le HTML brut et rendu pour voir quels signaux SEO dépendent de JavaScript. Utilisez cette référence pour choisir une opération et intégrer son contrat de réponse documenté. [Voir la page du produit](https://domscan.net/fr/javascript-seo-api) ## Opérations GET `/v1/onpage/render-diff` [Voir la référence API](https://domscan.net/fr/docs/products/javascript-seo#getRenderDiff) ## GET `/v1/onpage/render-diff` Opération: `getRenderDiff` Crédits et authentification: 7 Authentification requise GET /v1/onpage/render-diff Crédits: 7 #### Paramètres de requête | Paramètre | Type | requis | | --- | --- | --- | | url | string | requis | #### Champs de réponse | Champ | Type | | --- | --- | | `url` | string | | `final_url` | string | | `status` | string | | `reason` | string \| null | | `checked_at` | string | | `raw` | object | | `raw.fetch` | object | | `raw.fetch.http_status` | integer \| null | | `raw.fetch.final_url` | string | | `raw.fetch.content_type` | string \| null | | `raw.fetch.bytes` | integer | | `raw.fetch.truncated` | boolean | | `raw.fetch.redirect_count` | integer | | `raw.fetch.duration_ms` | integer | | `raw.fetch.rendered` | boolean | | `raw.signals` | object | | `raw.signals.title` | string \| null | | `raw.signals.meta_description` | string \| null | | `raw.signals.canonical` | string \| null | | `raw.signals.robots` | string \| null | | `raw.signals.noindex` | boolean | | `raw.signals.h1[]` | string[] | | `raw.signals.word_count` | integer | | `raw.signals.internal_links` | integer | | `raw.signals.external_links` | integer | | `raw.signals.structured_data_types[]` | string[] | | `raw.signals.hreflang_count` | integer | | `raw.signals.lang` | string \| null | | `rendered` | object | | `rendered.fetch` | object | | `rendered.fetch.http_status` | integer \| null | | `rendered.fetch.final_url` | string | | `rendered.fetch.content_type` | string \| null | | `rendered.fetch.bytes` | integer | | `rendered.fetch.truncated` | boolean | | `rendered.fetch.redirect_count` | integer | | `rendered.fetch.duration_ms` | integer | | `rendered.fetch.rendered` | boolean | | `rendered.signals` | object | | `rendered.signals.title` | string \| null | | `rendered.signals.meta_description` | string \| null | | `rendered.signals.canonical` | string \| null | | `rendered.signals.robots` | string \| null | | `rendered.signals.noindex` | boolean | | `rendered.signals.h1[]` | string[] | | `rendered.signals.word_count` | integer | | `rendered.signals.internal_links` | integer | | `rendered.signals.external_links` | integer | | `rendered.signals.structured_data_types[]` | string[] | | `rendered.signals.hreflang_count` | integer | | `rendered.signals.lang` | string \| null | | `js_dependence` | string \| null | | `rendered_word_share` | number \| null | | `differences[]` | object[] | | `differences[]` | object | | `differences[].field` | string | | `differences[].change` | string | | `differences[].impact` | string | | `differences[].raw` | unknown | | `differences[].rendered` | unknown | | `issues[]` | string[] | #### Exemple de requête ```bash curl -H "X-API-Key: $DOMSCAN_API_KEY" "https://domscan.net/v1/onpage/render-diff?url=https%3A%2F%2Fexample.com" ``` ```javascript const response = await fetch("https://domscan.net/v1/onpage/render-diff?url=https%3A%2F%2Fexample.com", { headers: { "X-API-Key": process.env.DOMSCAN_API_KEY }, }); const data = await response.json(); console.log(data); ``` ```python import os import requests response = requests.get( "https://domscan.net/v1/onpage/render-diff?url=https%3A%2F%2Fexample.com", headers={"X-API-Key": os.environ["DOMSCAN_API_KEY"]}, ) print(response.json()) ``` ```go package main import ( "fmt" "io" "net/http" "os" ) func main() { req, err := http.NewRequest(http.MethodGet, "https://domscan.net/v1/onpage/render-diff?url=https%3A%2F%2Fexample.com", nil) if err != nil { panic(err) } req.Header.Set("X-API-Key", os.Getenv("DOMSCAN_API_KEY")) resp, err := http.DefaultClient.Do(req) if err != nil { panic(err) } defer resp.Body.Close() data, err := io.ReadAll(resp.Body) if err != nil { panic(err) } fmt.Println(resp.Status, string(data)) } ``` ```ruby require "json" require "net/http" uri = URI("https://domscan.net/v1/onpage/render-diff?url=https%3A%2F%2Fexample.com") request = Net::HTTP::Get.new(uri) request["X-API-Key"] = ENV.fetch("DOMSCAN_API_KEY") response = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http| http.request(request) end puts JSON.pretty_generate(JSON.parse(response.body)) ``` #### Exemple de réponse ```json { "url": "https://example.com/shoes/trail-runner", "final_url": "https://example.com/shoes/trail-runner", "status": "ok", "reason": null, "checked_at": "2026-10-13T12:00:00.000Z", "raw": { "fetch": { "http_status": 200, "final_url": "https://example.com/shoes/trail-runner", "content_type": "text/html", "bytes": 183, "truncated": false, "redirect_count": 0, "duration_ms": 380, "rendered": false }, "signals": { "title": "Example Outdoor", "meta_description": null, "canonical": null, "robots": "noindex", "noindex": true, "h1": [], "word_count": 0, "internal_links": 0, "external_links": 0, "structured_data_types": [], "hreflang_count": 0, "lang": "en" } }, "rendered": { "fetch": { "http_status": 200, "final_url": "https://example.com/shoes/trail-runner", "content_type": "text/html", "bytes": 3535, "truncated": false, "redirect_count": 0, "duration_ms": 4210, "rendered": true }, "signals": { "title": "Trail Running Shoes for Rocky Terrain | Example Outdoor", "meta_description": "Lightweight trail running shoes with a grippy outsole, rock plate and breathable mesh. Free returns within 30 days on every pair.", "canonical": "https://example.com/shoes/trail-runner", "robots": "index, follow", "noindex": false, "h1": [ "Trail Running Shoes for Rocky Terrain" ], "word_count": 122, "internal_links": 5, "external_links": 2, "structured_data_types": [ "AggregateRating", "Brand", "BreadcrumbList", "ListItem", "Offer", "Product", "Rating", "Review" ], "hreflang_count": 3, "lang": "en" } }, "js_dependence": "high", "rendered_word_share": 1, "differences": [ { "field": "title", "change": "changed_by_js", "impact": "high", "raw": "Example Outdoor", "rendered": "Trail Running Shoes for Rocky Terrain | Example Outdoor" }, { "field": "meta_description", "change": "added_by_js", "impact": "medium", "raw": null, "rendered": "Lightweight trail running shoes with a grippy outsole, rock plate and breathable mesh. Free returns within 30 days on every pair." }, { "field": "canonical", "change": "added_by_js", "impact": "high", "raw": null, "rendered": "https://example.com/shoes/trail-runner" }, { "field": "robots", "change": "changed_by_js", "impact": "high", "raw": "noindex", "rendered": "index, follow" }, { "field": "noindex", "change": "removed_by_js", "impact": "high", "raw": true, "rendered": false } ], "issues": [ "robots_changed_by_js", "canonical_changed_by_js", "h1_requires_js", "content_requires_js", "links_require_js", "structured_data_changed_by_js" ] } ``` #### Codes de statut HTTP - `200` OK - `400` Requête incorrecte - `401` Non autorisé - `402` Paiement requis - `429` Trop de requêtes ## Ressources de référence [OpenAPI 3.0](https://domscan.net/v1/openapi.json) [Postman](https://domscan.net/v1/postman.json) [MCP](https://domscan.net/fr/mcp-domain-checker)