Man7 Scraper
Spider read man7.org in 1.1 s without a browser and returned 84 lines of clean markdown, including sections like "DESCRIPTION top", "RETURN VALUE top" and "STANDARDS top".
## DESCRIPTION topUnregister a memory address range from userfaultfd. The pages inthe range must be “compatible” (see UFFDIO_REGISTER(2const)).## RETURN VALUE topOn success, 0 is returned. On error, -1 is returned and *errno* is## ERRORS top**EINVAL **Either *argp->start* or the *argp->len* fields was not amultiple of the system page size; or the *argp->len* fieldwas zero; or these fields were otherwise invalid.**EINVAL **There as an incompatible mapping in the specified address**EINVAL **There was no mapping in the specified address range.## STANDARDS top## HISTORY top## EXAMPLES top## SEE ALSO topioctl(2), ioctl_userfaultfd(2), UFFDIO_REGISTER(2const),*linux.git/Documentation/admin-guide/mm/userfaultfd.rst*## COLOPHON topThis page is part of the *man-pages* (Linux kernel and C libraryuser-space interface documentation) project. Information about⟨https://www.kernel.org/doc/man-pages/⟩. If you have a bug report⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.This page was obtained from the tarball man-pages-6.18.tar.gz⟨https://mirrors.edge.kernel.org/pub/linux/docs/man-pages/⟩ on2026-05-24. If you discover any rendering problems in this HTMLversion of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections orimprovements to the information in this COLOPHON (which is *not*part of the original manual page), send a mail toLinux man-pages 6.18 2026-02-08 *UFFDIO_UNREGISTER*(2const)Pages that refer to this page:The same call, in code.
The capture above came back as markdown. These examples add a key, so you get browser rendering, proxies, and concurrency on man7.org.
import { SpiderBrowser } from "spider-browser";
const spider = new SpiderBrowser({
apiKey: process.env.SPIDER_API_KEY!,
});
await spider.connect();
const page = spider.page!;
await page.goto("https://man7.org");
// No selectors, no schema. Spider reads the page and names the fields.
const data = await page.scrape();
console.log(data);
await spider.close();import { Spider } from "@spider-cloud/spider-client";
const spider = new Spider({ apiKey: process.env.SPIDER_API_KEY! });
const result = await spider.scrapeUrl("https://www.man7.org", {
return_format: "markdown",
});
console.log(result);Ready for volume? Get an API key →
Fields you can pull.
Spider names these from the page. The capture above came back as markdown; the same
call with return_format: "json" returns them as keys.
What man7.org costs to scrape.
The capture above cost $0.000027 to fetch. Pricing is $1 per GB of pre-transformation bandwidth plus $0.001 per CPU minute, so a page like this one lands at a fraction of a cent. Failed requests are billed at $0.
- Free balance on signup
- No card required to test
- Balance never expires
Run it keyless, no account
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Start scraping man7.org.
You already have the call. A key raises the rate limit and turns on browser rendering, proxies, and concurrency. Balance never expires, and top-ups go through secure checkout.