Tools & Wizards About Us
serebii.net screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

serebii.net

Serebii.net - Where Legends Come To Life

Page Load Speed

3.5 sec in total

First Response

54 ms

Resources Loaded

1.5 sec

Page Rendered

1.9 sec

serebii.net screenshot

About Website

Click here to check amazing Serebii content for United States. Otherwise, check out these important facts you probably never knew about serebii.net

Contains up-to-date news, databases and information about all Pokémon Games, TCG sets and the TV show.

Visit serebii.net

Key Findings

We analyzed Serebii.net page load time and found that the first response time was 54 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

serebii.net performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value3,470 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value20.8 s

2/100

10%

Network Requests Diagram

serebii.net

54 ms

serebii.net

130 ms

layout.css

21 ms

js

53 ms

gpt.js

162 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 79% of them (78 requests) were addressed to the original Serebii.net, 5% (5 requests) were made to Youtube.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (765 ms) relates to the external source Stats.g.doubleclick.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 135.2 kB (5%)

Content Size

2.7 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Serebii.net main page is 2.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only a small number of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 80.0 kB

  • Original 103.0 kB
  • After minification 100.6 kB
  • After compression 23.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 80.0 kB or 78% of the original size.

Image Optimization

-2%

Potential reduce by 51.3 kB

  • Original 2.2 MB
  • After minification 2.1 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Serebii images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.7 kB

  • Original 389.5 kB
  • After minification 389.5 kB
  • After compression 386.7 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 1.2 kB

  • Original 64.8 kB
  • After minification 64.8 kB
  • After compression 63.7 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Serebii.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 14 (15%)

Requests Now

94

After Optimization

80

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 94 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serebii. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

serebii.net

serebii.net

54 ms

serebii.net

serebii.net

130 ms

layout.css

layout.css

21 ms

js

js

53 ms

gpt.js

gpt.js

162 ms

app.js

app.js

133 ms

spp-news.css

spp-news.css

44 ms

tablenew.css

tablenew.css

83 ms

brand

brand

30 ms

brandjs.js

brandjs.js

21 ms

EnafDHBj8UY

EnafDHBj8UY

264 ms

BannerBg.jpg

BannerBg.jpg

80 ms

Banner.jpg

Banner.jpg

80 ms

burger.svg

burger.svg

79 ms

sv6a.jpg

sv6a.jpg

135 ms

rivalsweek2024.jpg

rivalsweek2024.jpg

138 ms

251.gif

251.gif

84 ms

enteiresearch.jpg

enteiresearch.jpg

261 ms

1284.jpg

1284.jpg

135 ms

gblseason18.jpg

gblseason18.jpg

260 ms

euicpokemoncenter.jpg

euicpokemoncenter.jpg

137 ms

gyaradosevent.jpg

gyaradosevent.jpg

136 ms

catchingwonders.jpg

catchingwonders.jpg

261 ms

flocktogether.jpg

flocktogether.jpg

257 ms

pokebukidodrio.jpg

pokebukidodrio.jpg

261 ms

afterepochs.jpg

afterepochs.jpg

258 ms

infamouspokestarvillains.jpg

infamouspokestarvillains.jpg

262 ms

sneasel'straditionalhospitalitybingo.jpg

sneasel'straditionalhospitalitybingo.jpg

262 ms

season18.jpg

season18.jpg

266 ms

tcgpocket.jpg

tcgpocket.jpg

263 ms

bluecharizard.jpg

bluecharizard.jpg

264 ms

rikalodge.jpg

rikalodge.jpg

264 ms

matchablisswithalcremie.jpg

matchablisswithalcremie.jpg

265 ms

glitzandglam.jpg

glitzandglam.jpg

265 ms

maygoals2024.jpg

maygoals2024.jpg

266 ms

title2.jpg

title2.jpg

267 ms

wonderticket3.jpg

wonderticket3.jpg

269 ms

chikorita.jpg

chikorita.jpg

268 ms

worldofwonders.jpg

worldofwonders.jpg

271 ms

herocostume.jpg

herocostume.jpg

272 ms

gofestcrownresearch.jpg

gofestcrownresearch.jpg

272 ms

alcremiematcha.jpg

alcremiematcha.jpg

268 ms

cleffahatchday.jpg

cleffahatchday.jpg

269 ms

902-i.jpg

902-i.jpg

270 ms

firetypeweek.jpg

firetypeweek.jpg

273 ms

rika'selitetest.jpg

rika'selitetest.jpg

273 ms

thegoldenmagikarp2024.jpg

thegoldenmagikarp2024.jpg

274 ms

js

js

63 ms

analytics.js

analytics.js

105 ms

pubads_impl.js

pubads_impl.js

59 ms

fluttermaneevent.jpg

fluttermaneevent.jpg

199 ms

walkingwakeandironleavesspotlight.jpg

walkingwakeandironleavesspotlight.jpg

274 ms

goldoutbreaks.jpg

goldoutbreaks.jpg

274 ms

vulpix.jpg

vulpix.jpg

224 ms

goodol'rikahere.jpg

goodol'rikahere.jpg

219 ms

sneasel'straditionalhospitality.jpg

sneasel'straditionalhospitality.jpg

217 ms

diancie.jpg

diancie.jpg

217 ms

armorfalinks.jpg

armorfalinks.jpg

217 ms

collect

collect

183 ms

www-player.css

www-player.css

55 ms

www-embed-player.js

www-embed-player.js

99 ms

base.js

base.js

153 ms

pokemonmastersdayapril2024.jpg

pokemonmastersdayapril2024.jpg

150 ms

hisuianzoruatea.jpg

hisuianzoruatea.jpg

351 ms

exlink.jpg

exlink.jpg

351 ms

sneaseltea.jpg

sneaseltea.jpg

149 ms

anime2023.jpg

anime2023.jpg

354 ms

goodsleepday0324.jpg

goodsleepday0324.jpg

347 ms

nolimitsummersplashparade.jpg

nolimitsummersplashparade.jpg

349 ms

rediscoverkanto.jpg

rediscoverkanto.jpg

349 ms

flowerfestival.jpg

flowerfestival.jpg

347 ms

sustainabilityweek2024.jpg

sustainabilityweek2024.jpg

350 ms

282-i.jpg

282-i.jpg

348 ms

community0424.jpg

community0424.jpg

350 ms

kantoelitefourpart2april2024.jpg

kantoelitefourpart2april2024.jpg

350 ms

aprilfinals.jpg

aprilfinals.jpg

350 ms

902.jpg

902.jpg

350 ms

1285.jpg

1285.jpg

542 ms

1285-i.jpg

1285-i.jpg

541 ms

1248.jpg

1248.jpg

541 ms

synopsis.gif

synopsis.gif

542 ms

pictures.gif

pictures.gif

542 ms

1249.jpg

1249.jpg

541 ms

Facebook.png

Facebook.png

541 ms

Twitter.png

Twitter.png

542 ms

bluesky.png

bluesky.png

541 ms

youtube.png

youtube.png

541 ms

instagram.png

instagram.png

541 ms

threads.png

threads.png

542 ms

pm.png

pm.png

542 ms

lpoke.png

lpoke.png

515 ms

collect

collect

765 ms

ad_status.js

ad_status.js

325 ms

jRYISRuM9q7e_xyYaLp_fsq3qnLjbNevd8JDa-bOkpI.js

jRYISRuM9q7e_xyYaLp_fsq3qnLjbNevd8JDa-bOkpI.js

205 ms

embed.js

embed.js

115 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

248 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

272 ms

id

id

218 ms

Create

Create

63 ms

Accessibility Review

serebii.net accessibility score

71

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

serebii.net best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

serebii.net SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serebii.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Serebii.net main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

serebii.net

Open Graph description is not detected on the main page of Serebii. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: