Topic

ACV (1) Addin (265) agenda kristian (3) Agong (1) Akhirat (2) Akidah (5) Al-Quran (23) Al-Quran Digital Readpen (3) Amanah (8) Anak yatim (2) apple cider (1) april fool (1) Aurat (1) Bajet (1) Bajet 2014 (1) Berita (67) Bonus (1) Cerpen (2) Cinta (25) Coklatminda (1) cuka epal (1) Derma (6) derma palestine (1) Doa (8) Doa Akhir tahun (1) Doa awal tahun (1) Ebook jana RM (13) Elaun (1) Famili (50) free (4) free cash (2) free cek (1) Gaji (12) Gaji Agong (1) gaji baru DG41 (8) gaji baru guru (6) Gaji baru guru 2013 (1) gaji kakitangan awam 2015 gaji 2015 (1) Gaji MP (1) Gaji PM (1) Gaji Sultan (1) Gambar menarik (191) games (1) Gula Stevia (2) Gula stevia air zam-zam (2) guru (2) guru berkesan (1) guru oh guru (1) Hadith (27) Halal (14) Halloween (1) hari guru (1) Hari ibu (1) Hijrah (11) Hudud (2) Hukum (10) ilearn (1) ilearn ace (1) ilearn sasbadi (1) ilearnace (1) ilmu (6) Imam Mahdi (1) internet (1) IRM (1) Islam (1) isreal (1) Isu (302) jadual gaji 2015 (1) Jaga aurat (1) jam azan (1) Jenaka (65) Jom belajar (35) Jom melabur (10) Kesihatan (147) Kiamat (2) komputer (3) Kristianisasi (1) laksa sarawak (1) laksa sarawak hj Manan (1) Make money (53) MAS (1) MAS MH17 (1) MAS MH370 (1) Meaning of life (1) MH17 (1) MH370 (1) mindtech education (1) My Qalam (4) myqalam 4 kids (1) onexox (1) online survey (1) pa (1) PAK21 (1) palestine (1) Pasport Khulafak (3) PasportRasul (4) paste laksa (1) paste laksa sarawak (1) pembelajaran online (1) percuma (5) perlindungan takaful (6) Pilihanraya (2) Plan Medical card (1) Plan Ummah (1) PM (2) Politik (4) promosi (1) PRU 12 (1) PruBSN (6) prubsn takaful (1) Rasul (2) Rasulullah saw (3) Raya (1) Renungan (153) Rezeki (14) RM percuma (2) rumah rasul (1) Saham akhirat (1) sajak guru (1) sajak guru oh guru (1) sasbadi (1) sasbadi online (1) SAVE PALASTINE (5) Sedekah (2) Seminar buat RM (2) Sesat (1) siapalah kita (1) sifir gaji SPBA (7) Sifir gaji SPBA terkini (6) sifir gaji SSM (3) simkad (1) simkad onexox (1) simkad RM10 (1) simkad termurah (1) SPBA (6) SPBA 2012 (3) spba batal (3) SSM 2012 (2) SSM baru (2) Stevia (1) Sultan (1) sunnah (3) survey (1) survey online (2) Syiah (1) Taat ibu bapa (1) takaful (6) takwim (3) takwim 2014 (1) takwim 2015 (1) takwim 2016 (1) Takwim persekolahan 2015 (1) takwim persekolahan 2016 (1) telur tiruan (1) umat (1) Ustaz Haslin (2) valentine (2) web hosting (4) xox (1) zionis (1)

Total Pageviews

May 8, 2009

How Do Search Engines Work - Web Crawlers

It is the search engines that finally bring your website to the notice of the prospective customers. Hence it is better to know how these search engines actually work and how they present information to the customer initiating a search.

There are basically two types of search engines. The first is by robots called crawlers or spiders.

Search Engines use spiders to index websites. When you submit your website pages to a search engine by completing their required submission page, the search engine spider will index your entire site. A ‘spider’ is an automated program that is run by the search engine system. Spider visits a web site, read the content on the actual site, the site's Meta tags and also follow the links that the site connects. The spider then returns all that information back to a central depository, where the data is indexed. It will visit each link you have on your website and index those sites as well. Some spiders will only index a certain number of pages on your site, so don’t create a site with 500 pages!

The spider will periodically return to the sites to check for any information that has changed. The frequency with which this happens is determined by the moderators of the search engine.

A spider is almost like a book where it contains the table of contents, the actual content and the links and references for all the websites it finds during its search, and it may index up to a million pages a day.

Example: Excite, Lycos, AltaVista and Google.

When you ask a search engine to locate information, it is actually searching through the index which it has created and not actually searching the Web. Different search engines produce different rankings because not every search engine uses the same algorithm to search through the indices.

One of the things that a search engine algorithm scans for is the frequency and location of keywords on a web page, but it can also detect artificial keyword stuffing or spamdexing. Then the algorithms analyze the way that pages link to other pages in the Web. By checking how pages link to each other, an engine can both determine what a page is about, if the keywords of the linked pages are similar to the keywords on the original page.

No comments:

Post a Comment