Webmaster Central Blog
Official news on crawling and indexing sites for the Google index
Supplemental goes mainstream
utorok, júla 31, 2007
Written by Prashanth Koppula, Product Manager, and Matt Cutts, Software Engineer
When Google originally introduced Supplemental Results in 2003, our main web index had billions of web pages. The supplemental index made it possible to index even more web pages and, just like our main web index, make this content available when generating relevant search results for user queries. This was especially useful for queries that did not return many results from the main web index, and for these the supplemental index allowed us to query even more web pages. The fewer constraints we're able to place on sites we crawl for the supplemental index means that web pages that are not in the main web index could be included in the supplemental. These are often pages with lower PageRank or those with more complex URLs. Thus the supplemental index (
read more
- and
here's Matt's talk
about it on video) serves a very important purpose: to index as much of the relevant content that we crawl as possible.
The changes we make must focus on improving the search experience for our users. Since 2006, we've completely overhauled the system that crawls and indexes supplemental results. The current system provides deeper and more continuous indexing. Additionally, we are indexing URLs with more parameters and are continuing to place fewer restrictions on the sites we crawl. As a result, Supplemental Results are fresher and more comprehensive than ever. We're also working towards showing more Supplemental Results by ensuring that every query is able to search the supplemental index, and expect to roll this out over the course of the summer.
The distinction between the main and the supplemental index is therefore continuing to narrow. Given all the progress that we've been able to make so far, and thinking ahead to future improvements, we've decided to stop labeling these URLs as "Supplemental Results." Of course, you will continue to benefit from Google's supplemental index being deeper and fresher.
Hey!
Check here if your site is mobile-friendly.
Menovky
accessibility
10
advanced
195
AMP
13
Android
2
API
7
apps
7
autocomplete
2
beginner
173
CAPTCHA
1
cms
1
crawling and indexing
158
encryption
3
events
51
feedback and communication
83
forums
5
general tips
90
geotargeting
1
Google Assistant
3
Google I/O
3
Google Images
3
Google News
2
hacked sites
12
hangout
2
hreflang
3
https
5
Chrome
2
images
12
intermediate
205
interstitials
1
javascript
8
job search
2
localization
21
malware
6
mobile
63
mobile-friendly
14
nohacked
1
performance
17
product expert
1
product experts
2
products and services
63
questions
3
ranking
1
recipes
1
rendering
2
Responsive Web Design
3
rich cards
7
rich results
10
search console
35
search for beginners
1
search queries
7
search results
140
security
12
seo
3
sitemaps
46
speed
6
structured data
33
summit
1
TLDs
1
url removals
1
UX
3
verification
8
video
6
webmaster community
24
webmaster forum
1
webmaster guidelines
57
webmaster tools
177
webmasters
3
youtube channel
6
Archive
2020
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2019
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2018
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2017
dec
nov
okt
sep
aug
jún
máj
apr
mar
feb
jan
2016
dec
nov
okt
sep
aug
jún
máj
apr
mar
jan
2015
dec
nov
okt
sep
aug
júl
máj
apr
mar
feb
jan
2014
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2013
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2012
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2011
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2010
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2009
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2008
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2007
dec
nov
okt
sep
aug
júl
jún
máj
apr
mar
feb
jan
2006
dec
nov
okt
sep
aug
Feed
Follow @googlewmc
Give us feedback in our
Product Forums
.
Subscribe via email
Enter your email address:
Delivered by
FeedBurner
