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H
hand submission
The practice of visiting each search
engine and directory and submitting
the registration form by hand as opposed to using a software program.
Some systems will not accept automated
submissions.
Added
- May 31, 2003
by Christian Nielsen of
www.nielsentech.com
heading / heading tag
An HTML tag of 6 sizes. The
syntax is <H1></H1>, <H2></H2> etc., with H1
being the largest. Heading tags have significance in SEO.
Search engines normally assign more
weight to documents where the keywords
used in the query are found inside heading
tags. Pages that use heading tags generally rank higher, but excessive
use might get the page de-listed. For
more SEO techniques and the complete do's and don'ts of SEO, please
refer to the Search Engine Yearbook.
hierarchical
clustering
Clusters or groups
(of search results) organized into
a hierarchy or tree structure instead of a flat list of clusters/groups.
hidden text
Text on a web page designed to be visible to spiders
but not to human visitors. The aim is
to load the page with keywords without
deterring from the visitor's experience. Of the various techniques of
hiding text, the most common is to set the text color to exactly or
nearly the background color. Most search
engines can now detect hidden text and consider it a form of spamdexing.
Pages that contain hidden text are penalized or even de-listed.
For more on hidden text and the dangers of using hidden text, please
refer to the Search Engine Yearbook.
hit
One hit is one request for a file on a web server.
A visitor opening a page with 5 images
will in the process generate 6 hits (1 each for the images and one for
the HTML page itself). The term is sometimes also
used with reference to the number of results (hits) a search
engine returns for a specific query.
Hits are often confused with page views
and unique visitors.
Also see log file
hit-and-run
page
A page that gets many hits
(traffic) and quickly disappears again.
HITS
Hyperlink Induced Topic
Search. Referring to a search where the
search algorithm relies (partly) on
hyperlinks to identify topic areas. Not to be confused with "hits"
referring to file requests.
homepage / home page /
home
The main "index" page or navigation
hub of a web site. The homepage is not necessarily the first page. Many
sites use splash pages to welcome visitors
and lead them from there to the homepage. At most search
engines you can simply submit your homepage and leave it to the
spider to crawl
the rest of the site from there.
Hotbot
 www.hotbot.com
A fairly popular search engine, although
its popularity has declined sharply as Google
rose to dominance. Hotbot was once reported to have the largest database
of them all. In a study by Pandecta
Magazine (4th quarter of 2002) it was estimated to have the 4th
largest database after Google, AllTheWeb
and Wisenut. HotBot exploits NOW (Network
Of Workstations) parallel computing technology in order to achieve both
speed and size. NOW is basically interconnected workstations and LANs.
When you add up the combined computing power of those smaller components,
you get supercomputer-class performance. For more on Pandecta Magazine's
comparative study, a more detailed look at Hotbot and all the other
search engines worth knowing about, please refer to the Search
Engine Yearbook.
hot linking
The practice of displaying images files, video
files etc. on a web site when those files are on another (usually someone
else's) server. Effectively the site displays content that uses up someone
else's bandwidth. Hot linking is generally considered unethical unless
prior permission is obtained.
HTML
Hypertext Markup Language. HTML is the primary
language used to create web sites.
HTTP
Hypertext Transfer Protocol. HTTP is the most
common transfer protocol used to facilitate communication between servers
and browsers.
hub
Coined by Jon Kleinberg during the development
of his HITS algorithm.
Hubs are sites that link to many other sites
that are cosidered authorities in their
topic area. For instance, the Ford Motor Company's web site is an authority
in the car manufacturing topic. So is Ferrari's web site etc. A site
that links to all these manufacturers would be considered a good hub
within the car manufacturing topic.
Also see authority.
hyperlink / link
Clickable content on a web page usually
leads to another page, another site or another part of the same page.
The clickable content therefore is said to link to the other page /
site / part of the same page. Spiders use
links to crawl from one page to the next
as they index web sites.
Hyperlink
Induced Topic Search
See HITS.
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