The Astro Auction Website: The Fastest Auction Front End Ever Built, Under Your Brand

Your catalog, your sales, your design, your domain. Pages that load in 0.4 seconds, read by Google and every AI assistant, and edited by you with an AI assistant instead of a developer.
With the Circuit back office and live bidding app, it makes Circuit a turnkey A to Z platform for auction houses. From $100 a month.

See a Live Astro Site

Three Products. One Vendor. Nothing Left to Stitch Together.

Most auction houses run a back office from one vendor, bidding from a marketplace and a website from a web agency, and spend their time moving data between the three. Circuit is all three, built to work as one.

1
AI cataloging, the bidder and consignor CRM, consignment and settlement, invoicing, shipping and reporting. Every lot, client and dollar in one system.
2
The Live Bidding App
Live, timed and absentee bidding with the clerk console, real-time updates, 40+ languages and multi-currency, on any phone or desktop with no app to install.
3
The Astro Auction Website
The public face of your auction house: catalogs, lots, calendars, results, consignment, content. Built for speed, search and AI answers, in your design, edited by you. This page.

Built for Speed, and Measured While Under Siege

Stamp Circuit, the philatelic auction site run by the Circuit team, is an Astro Auction Website. On November 7, 2026, a bot and AI crawler surge put 124,003 active users on it in 30 minutes. We ran PageSpeed Insights during the surge.

97PageSpeed score, desktop
0.4sLargest Contentful Paint
150msTotal Blocking Time
124,003Active users in 30 minutes

No challenge page, no Under Attack mode, no crawler blocked. See the full measurements and how the infrastructure works, or read why most sites fail this test.

What the Astro Auction Website Gives You

The front end an auction house would build if it had a web team of its own

Fast pre-rendered pages
Pages That Load Before the Bidder Blinks
Catalogs, lots, sale calendars and results are pre-rendered and served from a global edge network. Green Core Web Vitals on every page, on every device, which Google rewards and bidders notice.
SEO and AI search ready
SEO & AI Search Built In
Structured data on every lot, sale and catalog page, sitemaps, canonical URLs, Open Graph images and an llms.txt file. Complete HTML that Google and the fetchers behind ChatGPT, Perplexity, Claude and Gemini can read without running a line of JavaScript.
Fully customizable design
Your Design, Not a Template
Fully customizable. We rebuild the look you already have or design a new one with you. Layouts, typography, colors, sections and pages are all yours to shape, now and later.
Edit with an AI assistant through MCP
Edit It With an AI Assistant
Circuit's MCP server connects your site to Claude, ChatGPT or any MCP-capable assistant. Ask for a new page, a rewritten section, a different image or a new layout, review the result and publish. No HTML, CSS or JavaScript required.
Connected to the Circuit back office
Connected to Everything
Lots catalogued in the back office appear on the site. Bids go through the Circuit bidding app. Registrations land in the CRM. Results publish themselves. Nothing is exported, imported or re-keyed.
Your domain, bot protection and languages
Your Domain, Protected and Multilingual
Hosted on your own domain under your brand, with edge caching, pattern-based bot protection and verified crawlers always allowed. Pages and metadata in the languages your collectors read.

Change Anything on the Site by Asking for It

The usual price of a fast, custom-built website is that every change goes through a developer. The Astro Auction Website removes that price. Circuit provides an MCP server, the open standard that lets AI assistants work with external systems, and connects it to your site's pages and design.

You say what you want

"Add a page for our spring consignment call with the deadline and our specialist's contact." "Swap the homepage hero for the new catalog cover." "Rewrite the about page in a warmer tone." "Put a results section under every past sale."

The assistant makes the change

Claude, ChatGPT or any assistant that supports MCP edits the text, layout, images and styling in place, following the design system of your site so the result looks like it was always there.

You review and publish

Every change is a preview first. Approve it and the site rebuilds and redeploys to the edge in about a minute. Nothing goes live without a person at your auction house saying yes.

Your team gets the power of a framework used by the fastest sites on the web, with the editing experience of a conversation.

Astro Auction Website edited with an AI assistant through the Circuit MCP server

Start on WordPress Today. Move to Astro Whenever You Are Ready.

Circuit is a ramp, not a cliff. Two ways to put your auction house online, one back office behind both, and an upgrade whenever you want it.

Step 1: The WordPress Auction Plugin
Already have a WordPress site? Install the Circuit WordPress auction plugin and run your first sale this month. Bidding, catalog and client pages appear inside your existing theme. Included in every plan.
Step 2: The Astro Auction Website
When you want the speed, the search visibility and the AI editing, we build the Astro site on your design and point your domain at it. Your lots, bidders, consignors, catalogs and history were always in Circuit, so nothing is migrated and nothing is lost.
Step 3: The SEO Service
For Astro website customers only: monthly keyword, content, schema and link work by the team that built the site, with reporting. Quoted per house at $500 to $5,000 a month depending on how much you want done.

Astro Auction Website Pricing

An add-on to the Standard or Enterprise Plan, priced by traffic so a boutique house and a global one both pay what their site actually uses.

Hosting & platform
From $100/month
Scales with monthly traffic, up to $1,500/month for very high-volume sites. Edge hosting, bot protection, the MCP editing server, updates and monitoring included.
Design build
Quoted
Rebuilding your existing design or creating a new one, with your catalog, sale and content pages. Scoped with you before work starts.
SEO service, Astro customers only
$500 to $5,000/month
Per quote, depending on the monthly scope: keyword and content work, schema, links, AI-search optimization and reporting.

WordPress Plugin or Astro Website: Which One, When

Choose the WordPress Plugin When
You have a WordPress site you like, you want to be selling this month, and your website is not yet where new bidders come from. It is the fastest start in the industry and it is included.
Choose the Astro Website When
Search and AI answers matter to how collectors find you, your site has outgrown what a plugin inside a theme can do, you want sub-second pages under any traffic, or you want to edit the site yourself without a developer.
What Stays the Same
The back office, the bidding app, your bidders, consignors, catalogs and history. Both front ends are windows onto the same Circuit platform, so the move is a change of website, not a change of system.
What Changes
Page speed, crawlability, structured data, design freedom, the AI editing workflow, and the infrastructure that absorbs a bot surge without blocking Google. See the performance page.

Astro Auction Website FAQ

What is the Astro Auction Website?

It is the auction house website Circuit builds and hosts for you, on the Astro web framework, connected to the Circuit back office and bidding app. Catalogs, lot pages, sale calendars, results, consignment pages and your editorial content are published as fast static pages on your own domain, under your own design, with schema markup and AI-search readiness built in. It is the third part of Circuit's turnkey offer, alongside the back office and the live bidding app.

Can I keep my current design and style?

Yes. The Astro site is fully customizable. We rebuild your existing look, or design a new one with you, and every page, section, color, typeface and layout can be changed later. Nothing about the framework forces a template on your auction house.

How do I edit the site if I do not know HTML, CSS or JavaScript?

With an AI assistant. Circuit provides an MCP server (Model Context Protocol) that connects your site to Claude, ChatGPT or any other assistant that supports MCP. You describe the change in plain language, such as a new consignment page, a different hero image, a rewritten about page or a new section on the homepage, and the assistant makes the edit. You review it and publish. No developer, no code.

How fast is it?

During a bot and AI crawler surge on November 7, 2026, with 124,003 active users in 30 minutes, PageSpeed Insights scored the Stamp Circuit homepage, which runs on the Astro site, 97 on desktop with a 0.4 second Largest Contentful Paint and 150 milliseconds Total Blocking Time. Pages are pre-rendered and served from the edge, so they load in well under a second anywhere in the world.

What does it do for SEO and AI search?

Every lot, sale and catalog page is served as complete HTML with structured data, so Google, Bing and the fetchers behind ChatGPT, Perplexity, Claude and Gemini can read it without executing JavaScript. The site ships with sitemaps, canonical URLs, Open Graph images, an llms.txt file and clean internal linking. Core Web Vitals, a Google ranking signal, are green by construction. For houses that want it managed, the SEO service adds ongoing keyword, content and link work.

How much does the Astro Auction Website cost?

It is an add-on to the Standard or Enterprise Plan, priced by traffic. It starts at $100 per month for a typical auction house and scales with visitors, up to $1,500 per month for very high-volume sites. The design build is quoted separately based on the scope. The optional SEO service, available only to Astro website customers, is quoted per house at $500 to $5,000 per month depending on how much work you want done each month.

I already use the WordPress plugin. Can I upgrade later?

Yes, at any time. The WordPress auction plugin is the easy start: install it on the site you have and run your first sales. When you are ready for the Astro site, we build it on your design, point your domain at it, and the back office, bidders, consignors, catalogs and history carry over untouched, because they were always in Circuit.

Can the site be in more than one language?

Yes. The Astro site publishes catalogs and pages in the languages your collectors read, with per-language URLs and metadata, and bidding runs in 40+ interface languages and multiple currencies through the Circuit bidding app.

Who hosts it and what about attacks?

Circuit hosts and operates it on a global edge network with capacity headroom for traffic spikes. Catalog pages and 404 responses are served from cache, rate limits target abusive patterns rather than visitors, verified search engine and AI crawlers stay allowed, and the bidding engine is isolated from public page traffic. See our auction website performance page for the measurements.

See Your Auction House on an Astro Site

Book a demo and we will walk through a live Astro Auction Website, run PageSpeed on it while you watch, and show an AI assistant editing a page in real time.

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