5.1 sec in total
490 ms
4 sec
599 ms
Welcome to openlibra.com homepage info - get ready to check Open Libra best content for Spain right away, or after learning these important things about openlibra.com
OpenLibra. The free online library that you have waiting for
Visit openlibra.comWe analyzed Openlibra.com page load time and found that the first response time was 490 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
openlibra.com performance score
name
value
score
weighting
Value5.0 s
10/100
10%
Value12.4 s
0/100
25%
Value9.0 s
14/100
10%
Value100 ms
98/100
30%
Value0.054
98/100
15%
Value11.8 s
17/100
10%
490 ms
203 ms
511 ms
394 ms
27 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 29% of them (16 requests) were addressed to the original Openlibra.com, 43% (24 requests) were made to S3.amazonaws.com and 18% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Openlibra.com.
Page size can be reduced by 73.8 kB (5%)
1.6 MB
1.5 MB
In fact, the total size of Openlibra.com main page is 1.6 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. 65% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 54.8 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 54.8 kB or 83% of the original size.
Potential reduce by 19.0 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. Open Libra images are well optimized though.
Potential reduce by 68 B
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.
Number of requests can be reduced by 10 (24%)
42
32
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Open Libra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
collection
490 ms
bootstrap.css
203 ms
main.css
511 ms
no-cover.png
394 ms
jquery.min.js
27 ms
main.js
565 ms
ol-base.en.js
302 ms
desktop.js
305 ms
openlibra-collection.js
303 ms
typeahead.js
494 ms
openlibra-logo.png
395 ms
css
84 ms
css
95 ms
css
107 ms
beta.png
126 ms
brueghel.jpg
1799 ms
cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf
141 ms
DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf
149 ms
MTP_ySUJH_bn48VBG8sNSonF5uFdDttMLvmWuJdhhgs.ttf
242 ms
k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf
299 ms
GreatVibes-Regular.woff
210 ms
FUDHvzEKSJww3kCxuiAo2A.ttf
300 ms
0XxGQsSc1g4rdRdjJKZrNC3USBnSvpkopQaUR-2r7iU.ttf
300 ms
icomoon.woff
299 ms
DvlFBScY1r-FMtZSYIYoYw.ttf
297 ms
4cKlrioa77J2iqTqBgkRWg.ttf
297 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
299 ms
nj47mAZe0mYUIySgfn0wpQ.ttf
299 ms
glyphicons-halflings-regular.woff
297 ms
Aprendizaje-colaborativo-apoyado-por-computador-OpenLibra.jpg
270 ms
analytics.js
236 ms
Practicas-ensamblador-Raspberry-Pi-OpenLibra.png
296 ms
Raspberry-Pi-Projects-Book-v1-OpenLibra.png
270 ms
Basic-Arithmetic-Student-Workbook-OpenLibra.jpg
298 ms
MIT-AppInventor-2-OpenLibra.png
310 ms
Intermediate-Algebra-SCCMATH-OpenLibra.jpg
296 ms
Introductory-Algebra-SCCMATH-OpenLibra.jpg
297 ms
advanced-linux-programming-OpenLibra.jpg
303 ms
Inteligencia-Artificial-OpenLibra.jpg
314 ms
Biology-RS-OpenLibra.jpg
327 ms
Physics-RS-OpenLibra.jpg
323 ms
Astronomy-an-overview-OpenLibra.png
317 ms
Estructuras-de-datos-OpenLibra.jpg
338 ms
2016-calendario-zx-OpenLibra.jpg
371 ms
juegos-matematica-EGB-1-OpenLibra.png
347 ms
Informe-Estado-de-la-Ciberseguridad-2015-OpenLibra.png
343 ms
Chemistry-RS-OpenLibra.jpg
373 ms
The-MagPi-issue-43-OpenLibra.jpg
347 ms
Sistemas-Operativos-OpenLibra.jpg
379 ms
Temas-de-Diseno-en-Interaccion-Humano-Computadora-OpenLibra.jpg
386 ms
Objetos-Aprendizaje-Contenidos-Abiertos-OpenLibra.jpg
392 ms
BD-Perspectiva-Practica-OpenLibra.jpg
389 ms
Graficos-estadisticos-con-R-OpenLibra.gif
397 ms
Understanding-Rights-Reversion-OpenLibra.png
399 ms
chosen-sprite.png
226 ms
collect
14 ms
openlibra.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
openlibra.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
openlibra.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
Document uses legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Openlibra.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Openlibra.com 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.
openlibra.com
Open Graph data is detected on the main page of Open Libra. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: