Headlark

Headlark automatically generates titles, descriptions, link previews, structured data, and image alt text when a page is published, writing everything directly into the HTML. It fits seamlessly into Webflow, Astro, and your existing build workflows.

AI Marketing Tools#Page Metadata#Link preview#Structured Data

Updated: 2026-10-27

What is Headlark?

Headlark is a tool that automatically generates page SEO metadata. According to its website, it reads pages on every publish and fills in missing information. Generated content includes titles, descriptions, social link previews, Schema, and image alt, and it also handles canonical, robots, and language tags. Compared with manual page-by-page entry, it places more emphasis on automation within the publishing workflow. The website emphasizes automatically filling in metadata at publish time, with unchanged pages served from cache, making it suitable for continuously updated content sites.

Who is it for?

Teams building content sites with Webflow, Astro, or static sites.
Developers who often lose search clicks due to framework default titles and missing descriptions.
Content operations teams that need to fill in alt and Schema for a large number of pages.
Agencies doing technical SEO for client sites.
Developers using static sites or Webflow who want to reduce page-by-page entry of SEO fields.

Key features

Titles and descriptions

Generates specific titles and descriptions based on page content; the website says it controls title length and places the brand at the end.

Link previews

Generates complete card information for Slack, LinkedIn, iMessage, and X, preventing bare links when shared.

Structured data

Selects Schema such as business, product, event, recipe, etc. based on page type to help search display rich results.

Image alt

Generates descriptive text based on image context and follows the page language, improving accessibility and image search.

Technical detail completion

Fills in canonical, robots, and language tags when missing, while preserving users' existing choices.

Build and Webhook integration

Can be integrated into Astro, Vite, Netlify, Webflow, or CI build steps, with unchanged pages served from cache.

Things to know

Usage Tips

First validate generation rules on a test site or a small number of pages to confirm they won't overwrite manually written brand titles.
When placing Headlark in the build process, check environment variables, failure fallbacks, and cache behavior.
Structured data must match the page's actual content; incorrect Schema may cause rich result issues.
After launch, spot-check with search inspectors and social preview tools; don't just look at generation logs.
First validate title length, brand position, and social previews on a small number of pages, then integrate into the full publishing workflow.