Gospider : Fast Web Spider Written In Go

GoSpider is a Fast web spider written in Go.


go get -u


  • Fast web crawling
  • Brute force and parse sitemap.xml
  • Parse robots.txt
  • Generate and verify link from JavaScript files
  • Link Finder
  • Find AWS-S3 from response source
  • Find subdomains from response source
  • Get URLs from Wayback Machine, Common Crawl, Virus Total, Alien Vault
  • Format output easy to Grep
  • Support Burp input
  • Crawl multiple sites in parallel
  • Random mobile/web User-Agent

Also Read – Burp Suite Extension For Generate A Random User Agents



Fast web spider written in Go – v1.1.0 by @theblackturtle

gospider [flags]

-s, –site string Site to crawl
-S, –sites string Site list to crawl
-p, –proxy string Proxy (Ex:
-o, –output string Output folder
-u, –user-agent string User Agent to use
web: random web user-agent
mobi: random mobile user-agent
or you can set your special user-agent (default “web”)
–cookie string Cookie to use (testA=a; testB=b)
-H, –header stringArray Header to use (Use multiple flag to set multiple header)
–burp string Load headers and cookie from burp raw http request
–blacklist string Blacklist URL Regex
-t, –threads int Number of threads (Run sites in parallel) (default 1)
-c, –concurrent int The number of the maximum allowed concurrent requests of the matching domains (default 5)
-d, –depth int MaxDepth limits the recursion depth of visited URLs. (Set it to 0 for infinite recursion) (default 1)
-k, –delay int Delay is the duration to wait before creating a new request to the matching domains (second)
-K, –random-delay int RandomDelay is the extra randomized duration to wait added to Delay before creating a new request (second)
-m, –timeout int Request timeout (second) (default 10)
–sitemap Try to crawl sitemap.xml
–robots Try to crawl robots.txt (default true)
-a, –other-source Find URLs from 3rd party (,,
-w, –include-subs Include subdomains crawled from 3rd party. Default is main domain
-r, –include-other-source Also include other-source’s urls (still crawl and request)
–debug Turn on debug mode
-v, –verbose Turn on verbose
–no-redirect Disable redirect
–version Check version
-h, –help help for gospider

Example commands

Run with single site

gospider -s “” -o output -c 10 -d 1

Run with site list

gospider -S sites.txt -o output -c 10 -d 1

Run with 20 sites at the same time with 10 bot each site

gospider -S sites.txt -o output -c 10 -d 1 -t 20

Also get URLs from 3rd party (,,,

gospider -s “” -o output -c 10 -d 1 –other-source

Also get URLs from 3rd party (,,, and include subdomains

gospider -s “” -o output -c 10 -d 1 –other-source –include-subs

Use custom header/cookies

gospider -s “” -o output -c 10 -d 1 –other-source -H “Accept: /” -H “Test: test” –cookie “testA=a; testB=b”

gospider -s “” -o output -c 10 -d 1 –other-source –burp burp_req.txt

Blacklist url/file extension.

P/s: gospider blacklisted .(jpg|jpeg|gif|css|tif|tiff|png|ttf|woff|woff2|ico) as default

gospider -s “” -o output -c 10 -d 1 –blacklist “.(woff|pdf)”