httpx is a fast and multi-purpose HTTP toolkit that allows running multiple probes using the retryablehttp library.
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Co-authored-by: sandeep <sandeep@projectdiscovery.io>
Co-authored-by: mzack <marco.rivoli.nvh@gmail.com>
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httpx

FeaturesInstallationUsageRunning httpxNotesJoin Discord

httpx is a fast and multi-purpose HTTP toolkit allow to run multiple probers using retryablehttp library, it is designed to maintain the result reliability with increased threads.

Features

httpx

  • Simple and modular code base making it easy to contribute.
  • Fast And fully configurable flags to probe multiple elements.
  • Supports multiple HTTP based probings.
  • Smart auto fallback from https to http as default.
  • Supports hosts, URLs and CIDR as input.
  • Handles edge cases doing retries, backoffs etc for handling WAFs.

Supported probes:-

Probes Default check Probes Default check
URL true IP true
Title true CNAME true
Status Code true Raw HTTP false
Content Length true HTTP2 false
TLS Certificate true HTTP Pipeline false
CSP Header true Virtual host false
Line Count true Word Count true
Location Header true CDN false
Web Server true Paths false
Web Socket true Ports false
Response Time true Request Method true
Favicon Hash false Probe Status false
Body Hash true Header Hash true
Redirect chain false URL Scheme true

Installation Instructions

httpx requires go1.17 to install successfully. Run the following command to get the repo -

go install -v github.com/projectdiscovery/httpx/cmd/httpx@latest

Usage

httpx -h

This will display help for the tool. Here are all the switches it supports.

Usage:
  ./httpx [flags]

Flags:
INPUT:
   -l, -list string  Input file containing list of hosts to process
   -request string   File containing raw request

PROBES:
   -sc, -status-code     Display Status Code
   -td, -tech-detect     Display wappalyzer based technology detection
   -cl, -content-length  Display Content-Length
   -lc, -line-count      Display Response body line count
   -wc, -word-count      Display Response body word count
   -server, -web-server  Display Server header
   -ct, -content-type    Display Content-Type header
   -rt, -response-time   Display the response time
   -title                Display page title
   -location             Display Location header
   -method               Display Request method
   -websocket            Display server using websocket
   -ip                   Display Host IP
   -cname                Display Host cname
   -cdn                  Display if CDN in use
   -probe                Display probe status

MATCHERS:
   -mc, -match-code string     Match response with given status code (-mc 200,302)
   -ml, -match-length string   Match response with given content length (-ml 100,102)
   -ms, -match-string string   Match response with given string
   -mr, -match-regex string    Match response with specific regex
   -er, -extract-regex string  Display response content with matched regex
   -mlc, -match-line-count string  Match Response body line count
   -mwc, -match-word-count string  Match Response body word count
   -mfc, -match-favicon string[]   Match response with specific favicon

FILTERS:
   -fc, -filter-code string    Filter response with given status code (-fc 403,401)
   -fl, -filter-length string  Filter response with given content length (-fl 23,33)
   -fs, -filter-string string  Filter response with specific string
   -fe, -filter-regex string   Filter response with specific regex
   -flc, -filter-line-count string  Filter Response body line count
   -fwc, -filter-word-count string  Filter Response body word count
   -ffc, -filter-favicon string[]   Filter response with specific favicon

RATE-LIMIT:
   -t, -threads int           Number of threads (default 50)
   -rl, -rate-limit int       Maximum requests to send per second (default 150)
   -rlm, -rate-limit-minute   Maximum number of requests to send per minute (default 0)

MISCELLANEOUS:
   -favicon             Probes for favicon ("favicon.ico" as path) and display phythonic hash
   -tls-grab            Perform TLS(SSL) data grabbing
   -tls-probe           Send HTTP probes on the extracted TLS domains
   -csp-probe           Send HTTP probes on the extracted CSP domains
   -pipeline            HTTP1.1 Pipeline probe
   -http2               HTTP2 probe
   -vhost               VHOST Probe
   -p, -ports string[]  Port to scan (nmap syntax: eg 1,2-10,11)
   -path string         File or comma separated paths to request
   -paths string        File or comma separated paths to request (deprecated)

OUTPUT:
   -o, -output string                file to write output
   -sr, -store-response              store http response to output directory
   -srd, -store-response-dir string  store http response to custom directory (default "output")
   -csv                              store output in CSV format
   -json                             store output in JSONL(ines) format
   -irr, -include-response           include http request/response in JSON output (-json only)
   -include-chain                    include redirect http chain in JSON output (-json only)
   -store-chain                      include http redirect chain in responses (-sr only)

CONFIGURATIONS:
   -r, -resolvers string[]       List of custom resolvers (file or comma separated)
   -allow string[]               Allowed list of IP/CIDR's to process (file or comma separated)
   -deny string[]                Denied list of IP/CIDR's to process (file or comma separated)
   -random-agent                 Enable Random User-Agent to use (default true)
   -H, -header string[]          Custom Header to send with request
   -http-proxy, -proxy string    HTTP Proxy, eg http://127.0.0.1:8080
   -unsafe                       Send raw requests skipping golang normalization
   -resume                       Resume scan using resume.cfg
   -fr, -follow-redirects        Follow HTTP redirects
   -maxr, -max-redirects int     Max number of redirects to follow per host (default 10)
   -fhr, -follow-host-redirects  Follow redirects on the same host
   -vhost-input                  Get a list of vhosts as input
   -x string                     Request methods to use, use 'all' to probe all HTTP methods
   -body string                  Post body to include in HTTP request
   -s, -stream                   Stream mode - start elaborating input targets without sorting
   -sd, -skip-dedupe             Disable dedupe input items (only used with stream mode)
   -pa, -probe-all-ips           Probe all the ips associated with same host

DEBUG:
   -silent         Silent mode
   -v, -verbose    Verbose mode
   -version        Display version
   -nc, -no-color  Disable color in output
   -debug          Debug mode
   -debug-req      Show all sent requests
   -debug-resp     Show all received responses
   -stats          Display scan statistic

OPTIMIZATIONS:
   -nf, -no-fallback                  Display both probbed protocol (HTTPS and HTTP)
   -nfs, -no-fallback-scheme          Probe with input protocol scheme
   -maxhr, -max-host-error int        Max error count per host before skipping remaining path/s (default 30)
   -ec, -exclude-cdn                  Skip full port scans for CDNs (only checks for 80,443)
   -retries int                       Number of retries
   -timeout int                       Timeout in seconds (default 5)
   -rsts, -response-size-to-save int  Max response size to save in bytes (default 2147483647)
   -rstr, -response-size-to-read int  Max response size to read in bytes (default 2147483647)

Running httpX

URL Probe

This will run the tool against all the hosts and subdomains in hosts.txt and returns URLs running HTTP webserver.

cat hosts.txt | httpx 

    __    __  __       _  __
   / /_  / /_/ /_____ | |/ /
  / __ \/ __/ __/ __ \|   / 
 / / / / /_/ /_/ /_/ /   |  
/_/ /_/\__/\__/ .___/_/|_|   v1.1.1  
             /_/            

    projectdiscovery.io

[WRN] Use with caution. You are responsible for your actions
[WRN] Developers assume no liability and are not responsible for any misuse or damage.

https://mta-sts.managed.hackerone.com
https://mta-sts.hackerone.com
https://mta-sts.forwarding.hackerone.com
https://docs.hackerone.com
https://www.hackerone.com
https://resources.hackerone.com
https://api.hackerone.com
https://support.hackerone.com

File Input

This will run the tool with the probe flag against all of the hosts in hosts.txt and return URLs with probed status.

httpx -list hosts.txt -silent -probe

http://ns.hackerone.com [FAILED]
https://docs.hackerone.com [SUCCESS]
https://mta-sts.hackerone.com [SUCCESS]
https://mta-sts.managed.hackerone.com [SUCCESS]
http://email.hackerone.com [FAILED]
https://mta-sts.forwarding.hackerone.com [SUCCESS]
http://links.hackerone.com [FAILED]
https://api.hackerone.com [SUCCESS]
https://www.hackerone.com [SUCCESS]
http://events.hackerone.com [FAILED]
https://support.hackerone.com [SUCCESS]
https://gslink.hackerone.com [SUCCESS]
http://o1.email.hackerone.com [FAILED]
http://info.hackerone.com [FAILED]
https://resources.hackerone.com [SUCCESS]
http://o2.email.hackerone.com [FAILED]
http://o3.email.hackerone.com [FAILED]
http://go.hackerone.com [FAILED]
http://a.ns.hackerone.com [FAILED]
http://b.ns.hackerone.com [FAILED]

CIDR Input

echo 173.0.84.0/24 | httpx -silent

https://173.0.84.29
https://173.0.84.43
https://173.0.84.31
https://173.0.84.44
https://173.0.84.12
https://173.0.84.4
https://173.0.84.36
https://173.0.84.45
https://173.0.84.14
https://173.0.84.25
https://173.0.84.46
https://173.0.84.24
https://173.0.84.32
https://173.0.84.9
https://173.0.84.13
https://173.0.84.6
https://173.0.84.16
https://173.0.84.34

Tool Chain

subfinder -d hackerone.com -silent| httpx -title -tech-detect -status-code

    __    __  __       _  __
   / /_  / /_/ /_____ | |/ /
  / __ \/ __/ __/ __ \|   /
 / / / / /_/ /_/ /_/ /   |
/_/ /_/\__/\__/ .___/_/|_|
             /_/              v1.1.1

    projectdiscovery.io

Use with caution. You are responsible for your actions
Developers assume no liability and are not responsible for any misuse or damage.
https://mta-sts.managed.hackerone.com [404] [Page not found · GitHub Pages] [Varnish,GitHub Pages,Ruby on Rails]
https://mta-sts.hackerone.com [404] [Page not found · GitHub Pages] [Varnish,GitHub Pages,Ruby on Rails]
https://mta-sts.forwarding.hackerone.com [404] [Page not found · GitHub Pages] [GitHub Pages,Ruby on Rails,Varnish]
https://docs.hackerone.com [200] [HackerOne Platform Documentation] [Ruby on Rails,jsDelivr,Gatsby,React,webpack,Varnish,GitHub Pages]
https://support.hackerone.com [301,302,301,200] [HackerOne] [Cloudflare,Ruby on Rails,Ruby]
https://resources.hackerone.com [301,301,404] [Sorry, no Folders found.]

Favicon Hash

subfinder -d hackerone.com -silent | httpx -favicon

    __    __  __       _  __
   / /_  / /_/ /_____ | |/ /
  / __ \/ __/ __/ __ \|   /
 / / / / /_/ /_/ /_/ /   |
/_/ /_/\__/\__/ .___/_/|_|
             /_/              v1.1.5

      projectdiscovery.io

Use with caution. You are responsible for your actions.
Developers assume no liability and are not responsible for any misuse or damage.
https://docs.hackerone.com/favicon.ico [595148549]
https://hackerone.com/favicon.ico [595148549]
https://mta-sts.managed.hackerone.com/favicon.ico [-1700323260]
https://mta-sts.forwarding.hackerone.com/favicon.ico [-1700323260]
https://support.hackerone.com/favicon.ico [-1279294674]
https://gslink.hackerone.com/favicon.ico [1506877856]
https://resources.hackerone.com/favicon.ico [-1840324437]
https://api.hackerone.com/favicon.ico [566218143]
https://mta-sts.hackerone.com/favicon.ico [-1700323260]
https://www.hackerone.com/favicon.ico [778073381]

Path Probe

httpx -l urls.txt -path /v1/api -sc

    __    __  __       _  __
   / /_  / /_/ /_____ | |/ /
  / __ \/ __/ __/ __ \|   /
 / / / / /_/ /_/ /_/ /   |
/_/ /_/\__/\__/ .___/_/|_|
             /_/              v1.1.5

      projectdiscovery.io

Use with caution. You are responsible for your actions.
Developers assume no liability and are not responsible for any misuse or damage.
https://mta-sts.managed.hackerone.com/v1/api [404]
https://mta-sts.hackerone.com/v1/api [404]
https://mta-sts.forwarding.hackerone.com/v1/api [404]
https://docs.hackerone.com/v1/api [404]
https://api.hackerone.com/v1/api [401]
https://hackerone.com/v1/api [302]
https://support.hackerone.com/v1/api [404]
https://resources.hackerone.com/v1/api [301]
https://gslink.hackerone.com/v1/api [404]
http://www.hackerone.com/v1/api [301]

Docker Run

cat sub_domains.txt | docker run -i projectdiscovery/httpx

    __    __  __       _  __
   / /_  / /_/ /_____ | |/ /
  / __ \/ __/ __/ __ \|   /
 / / / / /_/ /_/ /_/ /   |
/_/ /_/\__/\__/ .___/_/|_|
             /_/              v1.1.2

      projectdiscovery.io

Use with caution. You are responsible for your actions
Developers assume no liability and are not responsible for any misuse or damage.
https://mta-sts.forwarding.hackerone.com
https://mta-sts.hackerone.com
https://mta-sts.managed.hackerone.com
https://www.hackerone.com
https://api.hackerone.com
https://gslink.hackerone.com
https://resources.hackerone.com
https://docs.hackerone.com
https://support.hackerone.com

📋 Notes

  • As default, httpx checks for HTTPS probe and fall-back to HTTP only if HTTPS is not reachable.
  • For printing both HTTP/HTTPS results, no-fallback flag can be used.
  • Custom scheme for ports can be defined, for example -ports http:443,http:80,https:8443
  • favicon,vhost, http2, pipeline, ports, csp-probe, tls-probe and path are unique flag with different probes.
  • Unique flags should be used for specific use cases instead of running them as default with other probes.
  • When using json flag, all the information (default probes) included in the JSON output.
  • Custom resolver supports multiple protocol (doh|tcp|udp) in form of protocol:resolver:port (eg udp:127.0.0.1:53)
  • Invalid custom resolvers/files are ignored.

Acknowledgement

httpx is made with 🖤 by the projectdiscovery team. Community contributions have made the project what it is. See the Thanks.md file for more details. Do also check out these similar awesome projects that may fit in your workflow:

Probing feature is inspired by @tomnomnom/httprobe work ❤️