sdsport.co.uk

Tasks

Avoid using deprecated HTML tags.
Try to make your site load faster.

SEO

URL

Domain : sdsport.co.uk/

Character length : 14

Title

SD Sport - Table Tennis News

Description

SD Sport brings to you the latest table tennis news, featured articles and more.

Keywords (meta keywords)

Good! The website does not use “meta keywords”.

Open Graph Protocol

Good! The OG (Open Graph) protocol is set on this website.

image: https://i0.wp.com/sdsport.co.uk/wp-content/uploads/2017/05/32316173400_f1431089a3_z.jpg?resize=108%2C70
locale: en_GB
type: website
title: SD Sport - Table Tennis News
description: SD Sport brings to you the latest table tennis news, featured articles and more.
url: http://sdsport.co.uk/
site_name: SD Sport

Dublin Core

Dublin Core is not used

Underscores in the URLs

Good! No underscore (_) found in the URLs.

Search engine friendly URLs

Error! Not all URLs are SEO friendly on this website!

http://sdsport.co.uk/?sp_year=2017&sp_month=4 ("« Apr")
http://sdsport.co.uk/?sp_year=2017&sp_month=6 ("Jun »")

Checking the robots.txt file

There is robots.txt file.
https://sdsport.co.uk/robots.txt

User-agent	Disallowed for the search engines
*	/wp-admin/

Social

Social Engagement

Linkedin0

Facebook Share185

Facebook Comments0

Content

Doctype

HTML 5

Encoding

Perfect! The character encoding is set: UTF-8.

Language

We have found the language localisation: ”en”.

Title

SD Sport - Table Tennis News

Character length : 28

Good! The title’s length is between 10 and 70 characters.

Text / HTML ratio

Ratio : 5%

Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.

Headings

H1	H2	H3	H4	H5	H6
0	5	1	4	0	0

Heading structure in the source code

<H2> Sweden To Face England
<H2> Ouaiche withdraws from Worlds
<H2> Destinations for 2018 ITTF World Tour
<H2> Champions League Crown For Orenburg
<H2> World Rankings Summary: May 2017
<H4> OTHER NEWS
<H4> TT World Team Rankings (May 2017)
<H3> Featured: Player Ratings 2016 Review
<H4> Upcoming Matches
<H4> SUBSCRIBE TO THE SD SPORT EMAIL LIST

Word cloud

world13
open7
league7
rankings6
sport6
latest5
championships5
match5
champions5
brazil4
england4
sweden4
home4
email4
ouaiche4
tour4
orenburg4
withdraws4
ittf4
destinations4
croatia3
between3
stéphane3
take3
news3
address2
day2
summary2
hashimoto2
fourth2
gionis2
lifts2
panagiotis2
singles2
success2
subscribe2
hugo2
calderano2
women's2
featured2
title2
claims2
results2
profile2
practice2
place2
announced2
sdsportnews’s2
view2
videos2
spotlight2
social2
media2
fixtures2
tables2

Keyword matrix

word	title	descriptions	heading
world
open
league
rankings
sport
latest

Two Word cloud

world championships5
champions league4
stéphane ouaiche2
ouaiche withdraws2
ittf world2
croatia open2

Three Word cloud

between sweden and england2
home news fixtures2
ittf world tour2
tables rankings spotlight2
view sdsportnews’s profile2

404 Page

The website has a 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 21 images on this web page.

Alternate attributes for the following 20 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

Readability

Flesch–Kincaid Grade Level

4.00

Flesch Reading Ease

73.40

Coleman Liau Index

11.40

Automated Readability Index (ARI)

2.40

Dale–Chall Readability

9.80

SMOG Index

7.50

Spache Readibility

5.00

Number of letters

6140

Number of words

1324

Number of sentences

331

Average words per sentences

Number of syllables

2024

Syllables in words

1821

Average syllables in words

1.53

Number of words in first three syllables

186

Percentage of word / syllables

14.05

Words not in Dale-Chall easy-word list

800

Words not in Spache easy-word list

217

Technologies

Mobile optimization

This website is optimal for mobile devices!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

Good! The web address is accessible in only one version. The www version is redirected to the version without www.

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Printability

Suggestion! Unfortunately, no printer-friendly CSS found.

Meta Tag (viewport tag, mobile devices)

Error! The meta tag named viewport is missing.

Speed test

Server response time

The server response time is not fast enough: 1.00 seconds have passed until the page started to load.

Loading time

7,152 ms

Table layout

Good! No nested tables found.

Number of HTTP resources

Number of source domains

Render blocking resources

The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files

https://sdsport.co.uk/wp-includes/js/jquery/jquery.js?ver=1.12.4
https://sdsport.co.uk/.. /jquery-migrate.min.js?ver=1.4.1
https://sdsport.co.uk/.. /jquery.easing.min.js?ver=5.1.1
https://sdsport.co.uk/.. /supersized.3.2.7.min.js?ver=5.1.1
https://sdsport.co.uk/.. /supersized.shutter.min.js?ver=5.1.1
https://sdsport.co.uk/.. /photon.min.js?ver=20130122
https://s0.wp.com/wp-content/js/devicepx-jetpack.js?ver=201918
https://sdsport.co.uk/.. /jquery.dataTables.min.js?ver=1.10.4
https://sdsport.co.uk/.. /sportspress.js?ver=2.6.14
https://secure.gravatar.com/js/gprofiles.js?ver=2019Apraa
https://sdsport.co.uk/.. /wpgroho.js?ver=5.1.1
https://sdsport.co.uk/.. /eu-cookie-law.min.js?ver=20180522
https://sdsport.co.uk/.. /facebook-embed.min.js
https://sdsport.co.uk/.. /new-tab.min.js?ver=3.0.0-beta.1
https://sdsport.co.uk/.. /lazy-images.min.js?ver=7.2.1
https://sdsport.co.uk/wp-includes/js/wp-embed.min.js?ver=5.1.1

List of render blocking css files

https://fonts.googleapis.com/css?family=Lato%3A300%2C600%7CRoboto%3A4...
https://sdsport.co.uk/.. /style.css?ver=714ac418515a64d0d3459a8755...
https://sdsport.co.uk/.. /style.min.css?ver=5.1.1
https://sdsport.co.uk/.. /supersized.min.css?ver=5.1.1
https://sdsport.co.uk/.. /supersized.shutter.min.css?ver=5.1.1
https://sdsport.co.uk/wp-includes/css/dashicons.min.css?ver=5.1.1
https://sdsport.co.uk/.. /sportspress.css?ver=2.6.14
https://sdsport.co.uk/.. /icons.css?ver=2.6.8
https://fonts.googleapis.com/css?family=Roboto%3A400%2C500&subset=cyr...
https://sdsport.co.uk/.. /sportspress-style.css?ver=2.3
https://sdsport.co.uk/.. /sportspress-style-ltr.css?ver=2.3
https://sdsport.co.uk/.. /twitter-feed.css?ver=5.1.1
https://sdsport.co.uk/.. /style.css?ver=714ac418515a64d0d3459a8755...
https://sdsport.co.uk/.. /jetpack.css?ver=7.2.1
https://secure.gravatar.com/dist/css/hovercard.min.css?ver=2019Apraa
https://secure.gravatar.com/dist/css/services.min.css?ver=2019Apraa

Speed test – Javascript

Javascript

Error! Too many javascript files found which slows down the page load on the website.

http://sdsport.co.uk/wp-includes/js/jquery/jquery.js?ver=1.12.4
http://sdsport.co.uk/wp-includes/js/jquery/jquery-migrate.min.js?ver=1.4.1
http://sdsport.co.uk/wp-content/plugins/multimediamonster-full-screen-background-images/js/frontend/jquery.easing.min.js?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/multimediamonster-full-screen-background-images/js/frontend/supersized.3.2.7.min.js?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/multimediamonster-full-screen-background-images/js/frontend/supersized.shutter.min.js?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/jetpack/modules/photon/photon.js?ver=20130122
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/js/jquery.dataTables.min.js?ver=1.10.4
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/js/jquery.countdown.min.js?ver=2.0.2
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/js/sportspress.js?ver=2.3.2
http://sdsport.co.uk/wp-content/plugins/jetpack/modules/wpgroho.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/jquery.flexslider.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/jquery.elastislide.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/scripts.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/ticker.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/respond.min.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/jquery.isotope.min.js?ver=4.7.5
http://sdsport.co.uk/wp-includes/js/imagesloaded.min.js?ver=3.2.0
http://sdsport.co.uk/wp-content/themes/gameday/js/jquery.nicescroll.min.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/css3-mediaqueries.js?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/js/retina.js?ver=4.7.5
http://sdsport.co.uk/wp-includes/js/wp-embed.min.js?ver=4.7.5

File size of all javascript files combined

582.20KB

Javascript minifying

You can save 4.4KB (38% compression) on the analysed URL by minifying the javascript files.

Speed test – CSS

CSS

Error! Too many CSS files detected that slows down the page load.

http://sdsport.co.uk/wp-content/plugins/amazon-associates-link-builder/css/aalb_basics.css?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/multimediamonster-full-screen-background-images/css/frontend/supersized.min.css?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/multimediamonster-full-screen-background-images/css/frontend/supersized.shutter.min.css?ver=4.7.5
http://sdsport.co.uk/wp-includes/css/dashicons.min.css?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/css/sportspress.css?ver=2.3.2
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/css/icons.css?ver=2.2
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/css/sportspress-style.css?ver=2.3
http://sdsport.co.uk/wp-content/plugins/sportspress/assets/css/sportspress-style-ltr.css?ver=2.3
http://sdsport.co.uk/wp-content/plugins/wp-to-twitter/css/twitter-feed.css?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/style.css?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/css/reset.css?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/css/media-queries.css?ver=4.7.5
http://sdsport.co.uk/wp-content/themes/gameday/css/flexslider.css?ver=4.7.5
http://sdsport.co.uk/wp-content/plugins/jetpack/css/jetpack.css?ver=4.9
http://sdsport.co.uk/wp-content/plugins/jetpack/_inc/genericons/genericons/genericons.css?ver=3.1

File size of all css files combined

241.55KB

CSS minifying

You can save 1,017B (17% compression) on the analysed URL by minifying the CSS files.

By minifying https://sdsport.co.uk/.. /sportspress.css?ver=2.6.14 you can save 426B (17% compression rate)
By minifying https://sdsport.co.uk/.. /sportspress-style.css?ver=2.3 you can save 370B (16% compression rate)
By minifying https://sdsport.co.uk/.. /sportspress-style-ltr.css?ver=2.3 you can save 112B (35% compression rate)
By minifying https://sdsport.co.uk/.. /icons.css?ver=2.6.8 you can save 109B (15% compression rate)

Speed test – Compression

Uncompressed size of the of the HTML

88.62KB

Gzip compression

Your site uses compression.

Speed test – Browser cache

Number of static resources (image, JS, CSS)

Browser cache

The browser cache is not set correctly for all elements.

URL	Duration
https://sdsport.co.uk/.. /facebook-embed.min.js	Expiry time is not specified
https://sdsport.co.uk/.. /progress.png	Expiry time is not specified
https://sdsport.co.uk/.. /Clock.png	Expiry time is not specified
https://sdsport.co.uk/.. /Home.png	Expiry time is not specified
https://sdsport.co.uk/.. /Paper.png	Expiry time is not specified
https://sdsport.co.uk/.. /Background-2-copy.jpg	Expiry time is not specified
https://sdsport.co.uk/wp-content/uploads/2018/08/SDblue1cropped3.jpg	Expiry time is not specified
https://sdsport.co.uk/.. /wptouch-2587e6e158f3e86fce84d63ab75d03b7...	Expiry time is not specified
https://connect.facebook.net/en_GB/sdk.js?_=1556556810171	20 minutes
https://connect.facebook.net/en_US/sdk.js	20 minutes

Speed test – Images

File size of all images combined

517.82KB

Image optimisation

You can save 294.5KB (78% compression) by optimising the images below:

By lossless compressing the https://sdsport.co.uk/.. /Background-2-copy.jpg you can save 265.2KB (78%) data.
By lossless compressing the https://sdsport.co.uk/wp-content/uploads/2018/08/SDblue1cropped3.jpg you can save 28.4KB (83%) data.
By lossless compressing the https://sdsport.co.uk/.. /progress.png you can save 948B (54%) data.

Links

We found a total of 56 different links.
Internal links: 48
External links: 8

External links:

Link text (anchor)	Link strength
View SDSportNews’s profile on Facebook
View @SDSportNews’s profile on Twitter
https://www.youtube.com/channel/UCmmaSPnzCqAi8lT9VIbSrcg
http://www.facebook.com/SDSportNews
http://www.twitter.com/@SDSportNews
https://plus.google.com/+SdsportUktabletennisnews/posts
http://www.tabletennisprss.co.uk
http://ttradar.com

Internal links:

Link text (anchor)	Link strength
http://sdsport.co.uk
Home
News
Fixtures & Results
League Tables
Rankings
Spotlight
Videos
World Championships practice match to take place between Sweden and England
Stéphane Ouaiche withdraws from World Championships
Destinations for 2018 ITTF World Tour announced
http://sdsport.co.uk/feed/rss
http://sdsport.co.uk/world-championships-practice-match-take-...
Sweden To Face England
http://sdsport.co.uk/stephane-ouaiche-withdraws-world-championships
Ouaiche withdraws from Worlds
http://sdsport.co.uk/destinations-2018-ittf-world-tour-announced
Destinations for 2018 ITTF World Tour
http://sdsport.co.uk/orenburg-claims-fourth-champions-league-title
Champions League Crown For Orenburg
http://sdsport.co.uk/world-rankings-summary-may-2017
World Rankings Summary: May 2017
Latest
Match Day
Orenburg claims fourth Champions League title
http://sdsport.co.uk/home-success-hugo-calderano-2017-brazil-open
Home success for Hugo Calderano at 2017 Brazil Open
http://sdsport.co.uk/joy-bernadette-szocs-2017-brazil-open
Joy for Bernadette Szőcs at 2017 Brazil Open
http://sdsport.co.uk/first-leg-success-orenburg-champions-lea...
First leg success for Orenburg in Champions League final
http://sdsport.co.uk/panagiotis-gionis-tops-mens-singles-even...
Panagiotis Gionis tops Men’s Singles event in Zagreb
http://sdsport.co.uk/no-stopping-honoka-hashimoto-2017-croatia-open
No stopping Honoka Hashimoto at 2017 Croatia Open
http://sdsport.co.uk/featured-player-ratings-2016-review
Featured: Player Ratings 2016 Review
« Apr
Jun »
2
7
9
12
16
http://sdsport.co.uk/.. /?customize_changeset_uuid=c9ebc5d9-79de-...
Social Media
Partners
About/Contact Us

Website security

37.61.237.216

External hidden links

Good! No hidden external links found

Looking for eval()

Good! No eval(bas64_decode()) scripts are found

Checking for XSS vulnerability

No XSS vulnerability found

Email encryption

Good! We have not found any unencrypted email addresses.

Sites on same ip

protelhealth.com

creativetechnologiesnetwork.com

thirdcultureparenting.com

infosportwettenbonus.com

thingsilearnedtoday.net

ks-tecnomarket.com

eternalcityeducation.com

upsport.fr

xeniumgames.com

Icons

Favicon

Good! The website uses favicon.

Order of Heading elements on mobile by position

H2 : World Championships Analysis: Miu Hirano on the verge of greatness?, ( 308px from top )
H2 : T2 APAC signs six new players for inaugural season, ( 443px from top )
H2 : World Championships Analysis: What went wrong for Zhang Jike?, ( 578px from top )
H2 : 2017 World Championships concludes as Ding Ning and Liu Shiwen claim Women’s Doubles trophy, ( 713px from top )
H2 : Ma Long defends World Championships Men’s Singles title, ( 929px from top )
H2 : End of the road for Lee Sangsu as Fan Zhendong moves through to title match, ( 1064px from top )
H2 : Dominant display sees Ma Long reach Men’s Singles final, ( 1226px from top )
H2 : Lee Sangsu claims another shock win to advance to semi-finals, ( 1361px from top )

Typos

dsport.co.uk, sqdsport.co.uk, qdsport.co.uk, swdsport.co.uk, wdsport.co.uk, sedsport.co.uk, edsport.co.uk, szdsport.co.uk, zdsport.co.uk, sxdsport.co.uk, xdsport.co.uk, scdsport.co.uk, cdsport.co.uk, ssport.co.uk, sdxsport.co.uk, sxsport.co.uk, sdssport.co.uk, sssport.co.uk, sdwsport.co.uk, swsport.co.uk, sdesport.co.uk, sesport.co.uk, sdrsport.co.uk, srsport.co.uk, sdfsport.co.uk, sfsport.co.uk, sdvsport.co.uk, svsport.co.uk, sdcsport.co.uk, scsport.co.uk, sdport.co.uk, sdsqport.co.uk, sdqport.co.uk, sdswport.co.uk, sdwport.co.uk, sdseport.co.uk, sdeport.co.uk, sdszport.co.uk, sdzport.co.uk, sdsxport.co.uk, sdxport.co.uk, sdscport.co.uk, sdcport.co.uk, sdsort.co.uk, sdspoort.co.uk, sdsoort.co.uk, sdsplort.co.uk, sdslort.co.uk, sdsp0ort.co.uk, sds0ort.co.uk, sdsp-ort.co.uk, sds-ort.co.uk, sdsport.co.uk, sdsort.co.uk, sdsp_ort.co.uk, sds_ort.co.uk, sdsprt.co.uk, sdspoirt.co.uk, sdspirt.co.uk, sdspokrt.co.uk, sdspkrt.co.uk, sdspolrt.co.uk, sdsplrt.co.uk, sdsport.co.uk, sdsprt.co.uk, sdspoprt.co.uk, sdspprt.co.uk, sdspo9rt.co.uk, sdsp9rt.co.uk, sdspo0rt.co.uk, sdsp0rt.co.uk, sdspot.co.uk, sdsporet.co.uk, sdspoet.co.uk, sdspordt.co.uk, sdspodt.co.uk, sdsporft.co.uk, sdspoft.co.uk, sdsporgt.co.uk, sdspogt.co.uk, sdspor4,t.co.uk, sdspo4,t.co.uk, sdsportt.co.uk, sdspott.co.uk, sdspor5t.co.uk, sdspo5t.co.uk, sdspor.co.uk, sdsportr.co.uk, sdsporr.co.uk, sdsportf.co.uk, sdsporf.co.uk, sdsportg.co.uk, sdsporg.co.uk, sdsporth.co.uk, sdsporh.co.uk, sdsporty.co.uk, sdspory.co.uk, sdsport5.co.uk, sdspor5.co.uk, sdsport6.co.uk, sdspor6.co.uk

More Sites

informaticaempresas.net

Title: Informática Empresas
Description: Servicios de informática para empresas y autónomos, todo en uno. Mantenimientos y Redes, Diseño y Programación Web, Aplicaciones Móviles (APPS), SEO, SEM.
Internet Protocol (IP) address:
Tech:
- Social
  - Linkedin Share button
- Other
  - CSS (Cascading Style Sheets)
  - Google Font API
  - Html (HyperText Markup Language)
  - Html5
  - Javascript
  - Php (Hypertext Preprocessor)

totaljobs.com.cn

Title: web
Description:
Internet Protocol (IP) address:
Tech:
- Other
  - Javascript

bestmandesign.nl

Title: Bestman Design
Description: The design of the chair VOYAGE is inspired by a special focus on material and construction. The frame of wooden slats forms a beam at the rear and unites the stability with a comfortable seat.
Internet Protocol (IP) address:
Tech:
- CMS
  - Wordpress CMS
- Analytic
  - Google Analytics
- Other
  - CSS (Cascading Style Sheets)
  - Google Font API
  - Html (HyperText Markup Language)
  - Javascript
  - jQuery
  - Php (Hypertext Preprocessor)
  - Pingback
  - Revslider
  - SuperFish

thecheerupfoundation.org

Title: Cheer Up Foundation
Description: null
Internet Protocol (IP) address:
Tech:
- Analytic
  - Google Analytics
- Other
  - CSS (Cascading Style Sheets)
  - Google Font API
  - Html (HyperText Markup Language)
  - Html5
  - Javascript

jialatasalei.com

Title: 澳门担保网
Description:
Internet Protocol (IP) address:
Tech:
- Other
  - CSS (Cascading Style Sheets)
  - Html (HyperText Markup Language)
  - Javascript

iquefinancial.com

Title: iQ Financial | The Smart Solution
Description:
Internet Protocol (IP) address:
Tech:
- CMS
  - Wordpress CMS
- Other
  - CSS (Cascading Style Sheets)
  - Html (HyperText Markup Language)
  - Html5
  - Javascript
  - jQuery
  - jQuery Cookie
  - jQuery Cycle
  - jQuery Validate
  - jQuery UI
  - Php (Hypertext Preprocessor)
  - Pingback

yunyo-tech.com

Title: 深圳市韵优科技有限公司 -专业提供蓝牙蓝牙模块蓝牙方案
Description: 深圳市韵优科技有限公司-专业提供蓝牙蓝牙模块蓝牙方案
Sites loading time: 26654
Internet Protocol (IP) address:
Javascript total size: 127.19KB
CSS total size: 57.15KB
Image total size: 260.43KB
Total size: 472.20KB
Tech:
- Other
  - CSS (Cascading Style Sheets)
  - Html (HyperText Markup Language)
  - Javascript
  - Php (Hypertext Preprocessor)

demoidcommerce.com

Title: Welcome!
Description:
Sites loading time: 10922
Internet Protocol (IP) address:
Javascript total size: 0.00B
CSS total size: 0.00B
Image total size: 0.00B
Total size: 1.82KB
Tech:
- Other
  - CSS (Cascading Style Sheets)
  - Html (HyperText Markup Language)

phonelocator.mobi

Title: フォーンロケーター
Description:
Internet Protocol (IP) address:
Tech:
- CMS
  - Wordpress CMS
- Other
  - CSS (Cascading Style Sheets)
  - Google Font API
  - Gravatar
  - Html (HyperText Markup Language)
  - Html5
  - Javascript
  - jQuery
  - Php (Hypertext Preprocessor)
  - Pingback
  - SVG (Scalable Vector Graphics)

marketeirs.com

Title: ماركيتيرز | بيت التسويق
Description: ماركيتيرز موقع متخصص في التسويق لإثراء المحتوى التسويقي و خطط التسويق و العلامات التجارية و الدعاية و الإعلان والتسويق الإلكتروني
Internet Protocol (IP) address:
Tech:
- Analytic
  - Google Analytics
- Other
  - CSS (Cascading Style Sheets)
  - Font Awesome
  - Html (HyperText Markup Language)
  - Html5
  - Php (Hypertext Preprocessor)

SEO report of sdsport.co.uk