Search engine ek aisa computer program hai jo internet par maujood information ko khojne aur uske uparit results dikhane ke liye banaya gaya hai. Internet par maujood itne sare websites aur web pages ko manushya ke dwara search karne me bahut mushkil hota hai. Lekin search engine ne ye kam aasan kar diya hai.
Search engine me search query ko enter karne ke baad, bahut tezi se scan kiya jaata hai aur fir use relevant keywords, links aur user behaviour ki madad se index karta hai. Jab koi user search query enter karta hai to search engine uske liye sabse relevant aur useful results show karta hai.
History of Search Engine
Search engine ki shuruat 1990 ke dashak me hui thi. Sabse pehle search engine Archie tha, jo keval FTP sites ki khoj karne me upyog me laaya jaata tha. Uske baad 1991 me Veronica aur Jughead search engine launch kiye gaye, jinka upyog Gopher aur Jughead protocol ke liye kiya jaata tha.
1993 me pehla graphical search engine WorldWideWeb Wanderer banaya gaya tha. Uske baad 1994 me Yahoo! ki shuruat hui, jo website directory ki tarah kaam karta tha aur manually categorize kiye gaye the. 1996 me HotBot, AltaVista aur Ask Jeeves search engine launch kiye gaye.
Lekin, 1998 me Google ki shuruat hui, jiske founder Larry Page aur Sergey Brin the. Google ne search engine ki duniya me ek naya aayam diya aur search results ki quality ko bahut badhaya. Google ne apni search technology ko bahut tezi se develop kiya aur aaj ye world ka sabse bada aur popular search engine ban chuka hai.
Kaise kaam karta hai search engine?
Search engine me information ko scan karne ke liye robots ya spiders ka upyog kiya jaata hai, jo website ke links ko follow karte hai aur web pages ko index karte hai. Ye spiders bahut tezi se internet par maujood content ko scan karte hai aur use keywords aur phrases ki madad se index karte hai.
Jab koi user search query enter karta hai, search engine uske query ko lekar apni database se matching results deta hai. Search engine apni database se result show karta hai jo user ke query se match karte hai.
Search engine me kai factors ko dhyaan me rakhkar search results diye jaate hai. Ye factors ho sakte hai- content relevance, page authority, domain authority, user engagement, backlinks, social signals, user location aur search history.
Popular search engines
Aaj ke samay me, kuch popular search engines hain-
Google - Sabse bada aur popular search engine, jo search results me bahut tezi se kaam karta hai.
Bing - Microsoft ke dwara banaya gaya search engine, jo aajkal bahut popular hai.
Yahoo - Yahoo! Directory aur Yahoo! Search dono ke jariye internet users ko information provide karta hai.
DuckDuckGo - Ye ek privacy-focused search engine hai, jo user ki information ko track nahi karta hai.
Baidu - China me sabse bada aur popular search engine.
Yandex - Russia me sabse popular search engine.
