A visual builder gets the first version of a site out quickly. What it does not give a studio is a project an agent can read and a history a second person can review — which is where the work moves once the site is live and being maintained.
What each stack does, rather than which one wins. Every row is something you can verify in either project's own documentation.
| What is compared | Astro | Webflow |
|---|---|---|
| Where the site lives | In a repository you own, deployable to any host. | In a platform account, on that platform's hosting. |
| The markup | Written by you, and only what the page needs. | Generated by the builder, together with the runtime its interactions depend on. |
| Recurring cost | Hosting, which is often free at the size of a brochure site. | A per-site subscription, multiplied by every client site a studio keeps online. |
| How a change is reviewed | As a diff, before it is deployed, by someone who did not make it. | On the canvas, after it has been made, with the platform's own undo and version history. |
| What an agent can do with it | Read every file, propose a change across the whole project and leave it in Git for review. | Work through whatever the platform's API exposes; the project is not a folder of text files. |
A speed comparison between two different sites measures the sites, not the stacks — and a number without its URL, date and throttling profile ages badly. Measure the project in front of you instead:
Compare the same page, not two different designs. A homepage with a video and a homepage with a heading are not a measurement.
Look at transferred bytes and the number of requests in the network panel, with the cache disabled and a cold profile.
Run the audit three times on the same throttling profile and report the median, not the best run.
Then check field data, which is what visitors actually experienced: the Core Web Vitals technology report is built from real Chrome users and is public.
Publish the URL, the date, the device and the throttling profile with every number, so someone else can get the same result.
Buy your licence. Download Astrology. Start creating.
Requires Node.js, npm and Git · AI features use your installed agent CLI