{"success":true,"data":{"url":"https://stripe.com/","seo_score":80,"grade":"B","issues":[],"warnings":["Multiple H1 tags found (2)","30 images missing alt text","No structured data (schema.org) found"],"passed":["Title length is optimal","Meta description length is optimal","Canonical URL is set","HTTPS is enabled"],"title":"Stripe | Financial Infrastructure to Grow Your Revenue","title_length":54,"meta_description":"Stripe is a financial services platform that helps all types of businesses accept payments, build flexible billing models, and manage money movement.","meta_description_length":149,"canonical":"https://stripe.com/","headings":{"h1":["Financial infrastructure to grow your revenue. Accept payments, offer financial services, and implement custom revenue models—from your first transaction to your billionth.","Financial infrastructure to grow your revenue. Accept payments, offer financial services, and implement custom revenue models—from your first transaction to your billionth."]},"images":{"total":34,"missing_alt":30,"with_alt":4,"samples":[{"src":"https://images.stripeassets.com/fzn2n1nzq965/115d4Vd5LVAsqFGDR1ClAv/0ceb2c44a7a7182cd624262420af7544/wave-fallback-desktop.png","alt":null},{"src":"https://images.stripeassets.com/fzn2n1nzq965/vYmk6v8n7oDAwbDpwhjV6/846f9b3e214549b8f14e2b8c8cfe9343/payment-bento-background.jpg?w=860&q=80","alt":null},{"src":"https://images.stripeassets.com/fzn2n1nzq965/m9HBEK464p46FeNIhs2PV/f5054a93c8a0a6aabdd1c47675d610ae/wave_crop.jpg?w=296&q=80","alt":null},{"src":"https://images.stripeassets.com/fzn2n1nzq965/1j4wM9h2bBsyRFvTv6Wsn0/07f4b9b1e1e17fdc509d9087454dd8bc/ConnectBentoBackground.jpg?w=1242&q=90","alt":null},{"src":"https://images.stripeassets.com/fzn2n1nzq965/43eqkFV1GG5GqcbNNeEzVp/8f4705b1b80a4c835c2960ed8055d649/ConnectMobileBackground.jpg?w=296&q=90","alt":null}],"alt_coverage":"12%"},"word_count":1560,"plan":"free"}}
curl --location --request POST 'https://zylalabs.com/api/12669/sitetrace+seo+audit+api/24548/seo+page+audit?url=https://stripe.com' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the SiteTrace SEO Audit API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
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Comprehensive on-page SEO analysis returning a 0–100 score with letter grade (A–F). Categorized issues, warnings, and passed checks help you prioritize fixes instantly.
Analyzes title and meta description length and quality, heading structure (H1–H6), image alt coverage, internal and external link counts, Open Graph tags, schema.org types, canonical URL, robots meta directives, and page load signals. Ultra and Mega plans add keyword density analysis with top 10 keywords.
Ideal for developers, SEO agencies, and content teams who need programmatic access to audit data at scale.
The SEO Page Audit endpoint returns a comprehensive analysis of a specified URL, including a 0–100 SEO score, letter grade (A–F), categorized issues, warnings, and passed checks. It also provides details on title and meta description lengths, heading structure, image alt text coverage, link counts, Open Graph tags, schema types, canonical URL, and robots meta directives.
Key fields in the response include `seo_score`, `grade`, `issues`, `warnings`, `passed`, `title`, `meta_description`, `canonical`, and `headings`. Each field provides specific insights into the SEO performance and structure of the analyzed page.
The response data is structured in a JSON format. It includes a `success` boolean indicating the request status, followed by a `data` object containing detailed SEO metrics, categorized issues, and the analyzed page's title and meta description.
The endpoint provides information on SEO score, letter grade, issues (e.g., missing alt text), warnings (e.g., multiple H1 tags), passed checks (e.g., optimal title length), and various SEO elements like Open Graph tags and canonical URLs.
The primary parameter for the SEO Page Audit endpoint is the URL of the page to be analyzed. Users can customize their requests by specifying different URLs to audit, allowing for targeted SEO assessments.
Users can leverage the returned data to identify SEO weaknesses and strengths. For example, they can prioritize fixes based on categorized issues and warnings, and use the score and grade to benchmark performance against competitors or track improvements over time.
Typical use cases include SEO audits for websites, performance tracking for digital marketing campaigns, and identifying areas for improvement in content strategy. Developers and SEO agencies can automate audits for multiple URLs to enhance site optimization.
Data accuracy is maintained through systematic analysis of the specified URL's HTML structure and content. The API employs established SEO best practices to evaluate elements like title tags, meta descriptions, and schema markup, ensuring reliable audit results.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
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