GET nsk.su HTTP 2002.0 s27.2 KB$0.000067 captured Aug 7, 2026
nsk.su, as data
One API turns any nsk.su 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 2.0 s
- Page size
- 27.2 KB of markdown, 707 lines
- Fields
- Title, Content, Date, Source
- Captured
- Aug 7, 2026
Free balance on signup, no card. This nsk.su page cost $0.000067 to fetch.
* When to use other tools for CGI-BIN (like C/C++ and Perl)* How to deal with security and data concurrency issues* How to get started with CGI-BIN scripts* How to send responses back to the user with dynamic HTML* How to retrieve data with CGI-BIN scripts## **Why Use Shell Scripts for CGI Support?**CGI can be written using a number of tools including shell scripts in Korn andC shell, Perl, and even compiled languages such as C or C++. There are a number ofreasons to pick or avoid a particular tool. Many people frown on coding CGI scriptsin shell scripting languages because of the limited programming capability thoselanguages provide. In addition, shell scripts put a larger load on the server systembecause they are interpreted and must invoke other processes to perform many functions(to translate they execute the UNIX tr command for example).The biggest disadvantage of using a shell script with CGI is that security problemsoccur very easily. CGI scripts run as though you signed onto the server and executedthe script interactively. In fact, one of the best debugging methods is to run yourCGI script while signed on the server interactively. If the script is not writtento properly prevent unintended access, an outsider is executing commands from insideThere are significant advantages to coding your CGI in shell scripts. First ofall, they are quick to develop and relatively easy to debug. Secondly, shell scriptstend to be portable to any server that is running UNIX. Most UNIX platforms supportversions of the Korn and C shells. The third reason is that most UNIX technical professionalsalready know how to code shell scripts. The final reason may be forced on you--theInternet Service Provider (ISP) or administrator of your server may require it.### **Security and Data Concurrency Issues**You must code your scripts carefully to prevent input data from being executed.What Spider does on nsk.su
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.
2.0 s · $0.000067Page 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://cmd.inp.nsk.su/old/cmd2/manuals/unix/UNIX_Unleashed/ch18.htm", "return_format": "markdown"}'from spider import Spider
app = Spider()
params = {"return_format": "markdown"}
page = app.scrape_url("https://cmd.inp.nsk.su/old/cmd2/manuals/unix/UNIX_Unleashed/ch18.htm", params=params)
print(page[0]["content"])import { Spider } from "@spider-cloud/spider-client";
const app = new Spider();
const [page] = await app.scrapeUrl("https://cmd.inp.nsk.su/old/cmd2/manuals/unix/UNIX_Unleashed/ch18.htm", {
return_format: "markdown",
});
console.log(page.content);What nsk.su costs
Multiplied from the measured 27.2 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 nsk.su.
The capture above took 2.0 s and cost $0.000067. The same call takes any URL on nsk.su.