GET fourmilab.ch HTTP 200698 ms1.3 KB$0.000015 captured Aug 7, 2026
fourmilab.ch, as data
One API turns any fourmilab.ch page into markdown, structured JSON, its link graph or a screenshot, and crawls the whole site the same way. The panel shows the real response we captured.
- Render mode
- Plain HTTP, no browser needed
- Response
- HTTP 200 in 698 ms
- Page size
- 1.3 KB of markdown, 34 lines
- Fields
- Title, Content, Date, Source and 1 more
- Captured
- Aug 7, 2026
Free balance on signup, no card. This fourmilab.ch page cost $0.000015 to fetch.
# Job TitlesI'm growing increasingly concerned about the title escalation going onaround here. It seems like every time we hire somebody we have tocreate a new job title to wedge them in the hierarchy without woundingThis is hardly in the spirit of solidarity we shared when we marchedin the Programmer's Strike For Parity twenty years ago.Therefore, I suggest that we establish the following job titles forthe technical staff, banishing ``Software Engineer'' to the darkness> Intergalactic Exalted Cosmic Hyper ProgrammerTitles shall be unrelated to pay, and shall be chosen by the employee. What Spider does on fourmilab.ch
Same key, five endpoints. The numbers under a cell were measured on this page.
Page to markdown
Clean text for RAG and LLM context, boilerplate removed. The lane that runs without a key.
698 ms · $0.000015Page to JSON
Spider reads the page and names the fields. Pass your own schema when you need exact keys.
Rendered capture
Real Chromium, full-page PNG. The same call also returns the rendered HTML.
The call behind the panel
This request produced the response above. Paste it with your key and you get the same bytes.
curl -X POST https://api.spider.cloud/scrape \
-H "Authorization: Bearer $SPIDER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://www.fourmilab.ch/autofile/www/section2_46_1.html", "return_format": "markdown"}' from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://www.fourmilab.ch/autofile/www/section2_46_1.html", params=params)
print(page[0]["content"]) import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://www.fourmilab.ch/autofile/www/section2_46_1.html", {
return_format: "markdown",
});
console.log(page.content); What fourmilab.ch costs
Multiplied from the measured 1.3 KB page. Estimates round to the cent.
1 GB of transfer costs $1, plus $0.001 per CPU minute, and failed requests cost $0. Crawling daily? The Unlimited plan is a flat monthly rate.
Point this at the rest of fourmilab.ch.
The capture above took 698 ms and cost $0.000015. The same call takes any URL on fourmilab.ch.