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Common search engines and syntax

2022-04-22 23:20:00 【The smell of tobacco】

Do you only know when you need to search Google Baidu ?? They are actually full-text search engines , There are also some domain specific search engines . and , You can add specific syntax when searching , Let your search get twice the result with half the effort .

This paper sorts out the search engines used in various scenarios , And the syntax supported by each search engine , Update from time to time .

If you know other search engines , Also welcome to leave a message below to tell me ~

Summary

Search engine type	name	Address	remarks
Full text search engine	Google	https://www.google.com/	Google, the full-text search engine, is the only one
	Baidu	https://www.baidu.com/	Baidu may be more in line with the usage habits of ordinary users in China
Vertical search	SemanticScholar	https://www.semanticscholar.org/	Thesis search engine
	shodan	https://www.shodan.io/	Search for networked devices . Search for network devices and servers
	Zhong Kui's eyes	https://www.zoomeye.org/	deviation web Application level search . The page has a very detailed search syntax document
	Dnsdb	https://www.dnsdb.io/	in the light of DNS Search engine

Search engine Syntax

Google

This website will share some special data of Google search : https://www.exploit-db.com/google-hacking-database

The following instructions can be combined .

classification	Instructions	explain	Example
Basic grammar	`+`	Search results should include the following content
	`-`	Remove the following content from the search results
	`~`	Search for consent words
	`.`	Single wildcard
	`*`	wildcard
	`""`	String exact match	`"hello"`
	`..`	Limit the number range	`Talk show 2016..2018` Search results include 2016/2017/2018 Any one of
	`before`	Limit the time for search results	`Talk show before:2018`
	`after`	Limit the time for search results	`Talk show after:2016`
	`OR/AND`	Logic control . Be careful to capitalize	`(iPad OR iPhone) apple`
Keyword location	`intext`	The search content appears in the body of the web page	`allintext:"java"`
	`allintext`	All words should appear in the body of the web page	`allintext:"java"` Here to `intext` `allintext` Briefly describe the difference between the two `intext: Programmer Wang` -> Will return a message containing `The programmer` perhaps `Wang mou` The content of `allintext: Programmer Wang` -> Will return a message containing `The programmer` and `Wang mou` The content of The differences below are the same
	`intitle`	The search content must appear in the title	`intitle:"java"`
	`allintitle`	The search content must appear in the title	`allintitle:"java"`
	`inurl`	The search content must appear in url in	`inurl:hujingnb`
	`allinurl`	The search content must appear in url in	`allinurl:hujingnb`
	`inanchor`	The search content appears in the anchor	`inanchor:download`
	`allinanchor`		`allinanchor:download`
	`AROUND(x)`	There are at most... Between limited keywords x Word	`apple AROUND(3) iphone` Restricted word `apple` and `iphone` Not more than 3 Word
	`source`	Find content from a specific source	`iphone source:the_verge`
Domain name restrictions	`info`	Specify the pages related to the website . Include pages linked to this site	`info:hujingnb.com`
	`link`	Link to the page of the specified website	`link:hujingnb.com`
	`site`	Search only in the specified domain name	`site:hujingnb.com`
Personal information	`phonebook`	Check the phone number	`phonebook:jack`
	`rphonebook`	Search only residential phones	`rphonebook:jack`
	`bphonebook`	Search only business calls	`bphonebook:jack`
other	`cache`	Google saved Web Cache	`cache:hujingnb.com`
	`related`	Search similar websites	`related:ebay.com` Search for similar shopping websites
	`define`	Definition of search terms	`define:"java"`
	`filetype`	Limit the type of file to search	`filetype:log`
	`stocks`	Search stock information	`stocks:aapl`
	`hl`	Specify the language of the search results	`hl=zh-CN`

Simply list some interesting search statements :

-site:hujingnb.com The search results do not contain the specified site
Some exposed database downloads :
Some exposed documents
site:218.87.21.* obtain 218.87.21.0/24 The site under the network segment

shodan

Here are just a few simple items

Instructions	explain	Example
`hostname`	Specify the host or domain name	`hostname:”google”`
`port`	Designated port	`port:80`
`product`	Specify the operating system / Software / platform	`product:”nginx”`
`os`	Specify the operating system	`os:"windows 2000"`
`version`	Specify the software version	`version:"2.2.1"`