elevenlabs.io

Semantic landmarks make the page structure understandable without visual layout.

Declare the preferred public URL so crawlers consolidate duplicate variants.

Use one H1 and avoid skipping heading levels so readers and agents can follow the document outline.

Summarize the product, audience, and value clearly for search and link previews.

Provide a title, description, type, and image for reliable launch-link previews.

Use a concise, specific title that identifies the product and page.

Use relevant JSON-LD types with enough identity fields to resolve the organization or product.

About, contact, privacy, and terms pages let visitors verify who operates the product.

Tell agents which jobs the product is appropriate for and where to begin.

Links declared for agents should resolve to real public content.

Canonical URL, language, Open Graph image, and Open Graph type improve attribution and previews.

Make the next step explicit with clear action language and a valid destination.

Evaluate CSP scope and HSTS duration instead of header presence alone.

A published Agent Skills index should be valid JSON and enumerate usable skill artifacts.

The homepage is requested with common crawler and user-fetch agent identifiers.

Meaningful copy should be available without JavaScript execution.

DMARC quarantine or reject policies reduce spoofing once mail sources are aligned.

Declare the content language with a valid html lang attribute.

A missing page should give a reader a recovery path such as home, docs, search, or sitemap.

The public homepage should not accidentally declare noindex.

The public product should finish on an encrypted HTTPS origin.

A useful llms.txt provides a concise product summary and links to canonical resources.

Use a title, summary, and described sections so the file works as a navigation index.

Advertise a Markdown representation through content negotiation or an alternate link.

Unbalanced code fences can hide the remainder of a Markdown document from parsers.

Canonical pages can optionally serve Markdown when requested and must vary caches by Accept.

A server card lets clients understand an MCP server before connecting.

HTTPS pages should not reference insecure HTTP assets.

A responsive viewport lets the page render at the correct width on mobile devices.

Prefer native links, buttons, and form controls over clickable generic elements.

The public homepage should not require a challenge or sign-in before its content can be read.

Keep extracted page content within a practical agent context budget.

Use HTTP redirects and avoid meta-refresh or JavaScript-only redirect stubs.

Crawler policies should intentionally distinguish training, search indexing, and user-requested retrieval.

A security.txt file gives researchers a supported disclosure route.

Publish a valid sitemap or sitemap index for canonical public URLs.

A valid SPF policy helps recipients identify authorized senders; excessive DNS lookups can invalidate it.

Public pages should expose substantive content without a login or challenge wall.

Missing pages should return 404 or 410 instead of a successful app shell.

Products offering an A2A agent can publish a machine-readable agent card.

Interactive elements need a text or ARIA-derived name.

Products with authentication can expose concise public setup and recovery guidance in auth.md.

Emerging catalogs can advertise APIs, agents, skills, and MCP surfaces from a well-known location.

Products with developer interfaces should expose a predictable developer entry point.

A contact address on the product domain can strengthen operator identity and support trust.

Inputs, selects, and textareas should have associated labels.

Products using delegated authorization should publish standard discovery metadata.

Products with a public API should publish a machine-readable OpenAPI document.

Products with public pricing should make it easy to find from the homepage.

Link public documentation from a page visitors and agents already reach.

Accurate lastmod values help crawlers prioritize changed pages.

sameAs links help disambiguate the brand across authoritative profiles.