Tools & Wizards About Us
osb.com.br screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

osb.com.br

Orquestra Sinfônica Brasileira | A orquestra que toca o Brasil

Page Load Speed

5.2 sec in total

First Response

1.2 sec

Resources Loaded

3.8 sec

Page Rendered

174 ms

osb.com.br screenshot

About Website

Click here to check amazing Osb content. Otherwise, check out these important facts you probably never knew about osb.com.br

Site oficial da Orquestra Sinfônica Brasileira, o mais tradicional conjunto sinfônico do país, com mais de 5 mil concertos realizados durante 80 anos de trajetória ininterrupta. Fique por dentro dos c...

Visit osb.com.br

Key Findings

We analyzed Osb.com.br page load time and found that the first response time was 1.2 sec and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster. This domain responded with an error, which can significantly jeopardize Osb.com.br rating and web reputation

Performance Metrics

osb.com.br performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value1,280 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

osb.com.br

1222 ms

reset.css

277 ms

estilos.css

552 ms

menu.css

690 ms

calendario_home.css

419 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 74% of them (64 requests) were addressed to the original Osb.com.br, 14% (12 requests) were made to Static.xx.fbcdn.net and 7% (6 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Osb.com.br.

Page Optimization Overview & Recommendations

Page size can be reduced by 797.3 kB (57%)

Content Size

1.4 MB

After Optimization

601.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Osb.com.br main page is 1.4 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. 45% of websites need less resources to load. Javascripts take 839.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 38.3 kB

  • Original 48.6 kB
  • After minification 42.3 kB
  • After compression 10.3 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. This page needs HTML code to be minified as it can gain 6.3 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 38.3 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 35.8 kB

  • Original 456.6 kB
  • After minification 420.8 kB

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. Osb images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 676.5 kB

  • Original 839.4 kB
  • After minification 602.0 kB
  • After compression 163.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 676.5 kB or 81% of the original size.

CSS Optimization

-86%

Potential reduce by 46.7 kB

  • Original 54.2 kB
  • After minification 38.4 kB
  • After compression 7.5 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. Osb.com.br needs all CSS files to be minified and compressed as it can save up to 46.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (44%)

Requests Now

81

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Osb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

osb.com.br

osb.com.br

1222 ms

reset.css

reset.css

277 ms

estilos.css

estilos.css

552 ms

menu.css

menu.css

690 ms

calendario_home.css

calendario_home.css

419 ms

bannerhome.css

bannerhome.css

415 ms

scrollingPopup.css

scrollingPopup.css

414 ms

jquery-1.5.js

jquery-1.5.js

1240 ms

jquery-ui-1.8.9.custom.min.js

jquery-ui-1.8.9.custom.min.js

1523 ms

jquery.autoheight.js

jquery.autoheight.js

557 ms

AC_RunActiveContent.js

AC_RunActiveContent.js

688 ms

jquery.floatingPopup.js

jquery.floatingPopup.js

690 ms

funcoes.js

funcoes.js

696 ms

calendario.js

calendario.js

826 ms

modal_popup.js

modal_popup.js

826 ms

jquery.url.js

jquery.url.js

829 ms

pluginpage.js

pluginpage.js

834 ms

jquery.pngFix.pack.js

jquery.pngFix.pack.js

963 ms

WebResource.axd

WebResource.axd

698 ms

ScriptResource.axd

ScriptResource.axd

989 ms

ScriptResource.axd

ScriptResource.axd

707 ms

ScriptResource.axd

ScriptResource.axd

836 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

699 ms

chamada_link_up_01.jpg

chamada_link_up_01.jpg

1306 ms

AgendaDeConcertos.png

AgendaDeConcertos.png

172 ms

tooltip.png

tooltip.png

171 ms

Educacao_Home_Direita.jpg

Educacao_Home_Direita.jpg

171 ms

logo_rouanet.jpg

logo_rouanet.jpg

171 ms

logo_bgbrasil_agata.jpg

logo_bgbrasil_agata.jpg

171 ms

logo_cvrd.jpg

logo_cvrd.jpg

169 ms

logo_rj_cultura.jpg

logo_rj_cultura.jpg

309 ms

logo_bndes.jpg

logo_bndes.jpg

309 ms

footer_carvalho_hosken.jpg

footer_carvalho_hosken.jpg

310 ms

logo_minc.jpg

logo_minc.jpg

307 ms

logo_fundacao.png

logo_fundacao.png

306 ms

chamada_assinaturas_2016.png

chamada_assinaturas_2016.png

1299 ms

chamada_2016_turmalina_esmeralda.jpg

chamada_2016_turmalina_esmeralda.jpg

1166 ms

chamada_2016_topazio_rubi.jpg

chamada_2016_topazio_rubi.jpg

1169 ms

chamada_2016_ametista.jpg

chamada_2016_ametista.jpg

1166 ms

chamada_2016_safira.jpg

chamada_2016_safira.jpg

1169 ms

skyline.png

skyline.png

267 ms

facebook_bw.png

facebook_bw.png

401 ms

twitter_bw.png

twitter_bw.png

401 ms

youtube_bw.png

youtube_bw.png

402 ms

instagram_bw.png

instagram_bw.png

403 ms

Menus_Completo.png

Menus_Completo.png

712 ms

linha_cima.png

linha_cima.png

403 ms

linha_meio.png

linha_meio.png

537 ms

linha_baixo.png

linha_baixo.png

538 ms

DACB.TTF

DACB.TTF

697 ms

DiaCalendario.png

DiaCalendario.png

528 ms

DiaInativo.png

DiaInativo.png

525 ms

DiaHojeInativo.png

DiaHojeInativo.png

695 ms

logo_minc_destaque_home.jpg

logo_minc_destaque_home.jpg

680 ms

logo_bg_destaque_home.jpg

logo_bg_destaque_home.jpg

681 ms

logo_vale_destaque_home.jpg

logo_vale_destaque_home.jpg

682 ms

logo_prefeitura_rio_destaque_home.jpg

logo_prefeitura_rio_destaque_home.jpg

782 ms

logo_bndes_destaque_home.jpg

logo_bndes_destaque_home.jpg

782 ms

logo_CarHosken_destaque_home.jpg

logo_CarHosken_destaque_home.jpg

784 ms

logo_bradesco_destaque_home.jpg

logo_bradesco_destaque_home.jpg

789 ms

logo_brookfield_destaque_home.jpg

logo_brookfield_destaque_home.jpg

787 ms

logo_light_destaque_home.jpg

logo_light_destaque_home.jpg

789 ms

DAR.TTF

DAR.TTF

1057 ms

ga.js

ga.js

26 ms

likebox.php

likebox.php

228 ms

__utm.gif

__utm.gif

20 ms

DiaInativoHeader.png

DiaInativoHeader.png

835 ms

McLpmVM3wCm.css

McLpmVM3wCm.css

176 ms

VH4VPudaxfN.css

VH4VPudaxfN.css

217 ms

X97l7PURgJ9.css

X97l7PURgJ9.css

299 ms

q68gy-v_YMF.js

q68gy-v_YMF.js

372 ms

FJmpeSpHpjS.js

FJmpeSpHpjS.js

390 ms

0wM5s1Khldu.js

0wM5s1Khldu.js

297 ms

1bNoFZUdlYZ.js

1bNoFZUdlYZ.js

296 ms

12472685_914934281888270_8237619954883880257_n.png

12472685_914934281888270_8237619954883880257_n.png

489 ms

12510326_914934188554946_4350955158313675068_n.png

12510326_914934188554946_4350955158313675068_n.png

555 ms

11011901_969184383131591_1057261474515882712_n.jpg

11011901_969184383131591_1057261474515882712_n.jpg

728 ms

1619365_10152476681072875_1419939613202786610_n.jpg

1619365_10152476681072875_1419939613202786610_n.jpg

709 ms

12032150_920446888029795_1765660466904500452_n.jpg

12032150_920446888029795_1765660466904500452_n.jpg

690 ms

11011840_1427956360856891_8440891161339659502_n.jpg

11011840_1427956360856891_8440891161339659502_n.jpg

753 ms

HEyyDkPknAC.png

HEyyDkPknAC.png

43 ms

wL6VQj7Ab77.png

wL6VQj7Ab77.png

41 ms

s7jcwEQH7Sx.png

s7jcwEQH7Sx.png

42 ms

I6-MnjEovm5.js

I6-MnjEovm5.js

44 ms

pQrUxxo5oQp.js

pQrUxxo5oQp.js

44 ms

__utm.gif

__utm.gif

5 ms

Accessibility Review

osb.com.br accessibility score

95

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

osb.com.br best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

osb.com.br SEO score

98

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    PT

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Osb.com.br can be misinterpreted by Google and other search engines. Our service has detected that Portuguese 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 Osb.com.br main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

osb.com.br

Open Graph description is not detected on the main page of Osb. 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: