Tools & Wizards About Us
casadelibro.com screenshot

Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

casadelibro.com

Libros e eBooks, descuentos y envíos gratis | Casa del Libro

Page Load Speed

2.2 sec in total

First Response

338 ms

Resources Loaded

1.8 sec

Page Rendered

100 ms

casadelibro.com screenshot

About Website

Welcome to casadelibro.com homepage info - get ready to check Casa De Libro best content right away, or after learning these important things about casadelibro.com

Todos los libros, eBooks y mejores eReaders están en Casa del Libro: ¡Descubre ofertas y ENVÍOS GRATIS!

Visit casadelibro.com

Key Findings

We analyzed Casadelibro.com page load time and found that the first response time was 338 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

casadelibro.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

casadelibro.com

338 ms

www.casadellibro.com

340 ms

ON%20BOLSILLO%20VERANO%202024_180x256.webp

570 ms

9788410347465.webp

498 ms

9788477894124.webp

638 ms

Our browser made a total of 172 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Casadelibro.com, 20% (34 requests) were made to Imagessl.casadellibro.com and 12% (21 requests) were made to Staticsni.casadellibro.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Imagessl1.casadellibro.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (50%)

Content Size

2.3 MB

After Optimization

1.1 MB

  • HTML
  • Images

In fact, the total size of Casadelibro.com main page is 2.3 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. HTML takes 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 1.1 MB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 162.1 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 1.1 MB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 2.1 kB

  • Original 976.2 kB
  • After minification 974.0 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. Casa De Libro images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 26 (15%)

Requests Now

170

After Optimization

144

  • Images
  • JavaScript

The browser has sent 170 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Casa De Libro. 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 as a result speed up the page load time.

Network Requests Diagram

casadelibro.com

casadelibro.com

338 ms

www.casadellibro.com

www.casadellibro.com

340 ms

ON%20BOLSILLO%20VERANO%202024_180x256.webp

ON%20BOLSILLO%20VERANO%202024_180x256.webp

570 ms

9788410347465.webp

9788410347465.webp

498 ms

9788477894124.webp

9788477894124.webp

638 ms

9788410822191.webp

9788410822191.webp

1216 ms

9788401035449.webp

9788401035449.webp

507 ms

9788408294290.webp

9788408294290.webp

488 ms

9788408294306.webp

9788408294306.webp

491 ms

9781471156267.webp

9781471156267.webp

499 ms

9780316201643.webp

9780316201643.webp

571 ms

_Banners%20desplegable%20web.webp

_Banners%20desplegable%20web.webp

588 ms

23.09.07.booktokers_180x256.webp

23.09.07.booktokers_180x256.webp

641 ms

Web-180x256.webp

Web-180x256.webp

614 ms

CAMP%20INTE_180x256.webp

CAMP%20INTE_180x256.webp

621 ms

defecto4.webp

defecto4.webp

641 ms

9788408290964.webp

9788408290964.webp

656 ms

9788410372221.webp

9788410372221.webp

1251 ms

9788419889409.webp

9788419889409.webp

567 ms

9788412758849.webp

9788412758849.webp

1151 ms

CDL-LogoSecundario-RGB.svg

CDL-LogoSecundario-RGB.svg

391 ms

ico_usuario.svg

ico_usuario.svg

435 ms

ico_cesta.svg

ico_cesta.svg

437 ms

ico_lupa.svg

ico_lupa.svg

455 ms

ico_librer%C3%ADas.svg

ico_librer%C3%ADas.svg

469 ms

9788419654892.webp

9788419654892.webp

604 ms

9788466347518.webp

9788466347518.webp

628 ms

1721798227298-runtime.js

1721798227298-runtime.js

518 ms

default.js

default.js

531 ms

1721798227298-0.js

1721798227298-0.js

533 ms

1721798227298-1.js

1721798227298-1.js

534 ms

1721798227298-7.js

1721798227298-7.js

540 ms

1721798227298-5.js

1721798227298-5.js

532 ms

1721798227298-baner-cabecera.js

1721798227298-baner-cabecera.js

534 ms

1721798227298-top-3-cabecera.js

1721798227298-top-3-cabecera.js

540 ms

1721798227298-heading-h1.js

1721798227298-heading-h1.js

545 ms

1721798227298-hero-v4.js

1721798227298-hero-v4.js

545 ms

1721798227298-bloque-3-destacados.js

1721798227298-bloque-3-destacados.js

554 ms

1721798227298-creativity-half.js

1721798227298-creativity-half.js

553 ms

1721798227298-product-slider.js

1721798227298-product-slider.js

555 ms

1721798227298-10.js

1721798227298-10.js

561 ms

1721798227298-creativity.js

1721798227298-creativity.js

563 ms

1721798227298-todas-tematicas-con-imagenes.js

1721798227298-todas-tematicas-con-imagenes.js

555 ms

1721798227298-formas.js

1721798227298-formas.js

555 ms

1721798227298-top-tematicas.js

1721798227298-top-tematicas.js

560 ms

app.js

app.js

569 ms

app.js

app.js

572 ms

1721798227298-app.js

1721798227298-app.js

572 ms

9788466374613.webp

9788466374613.webp

374 ms

9788466356893.webp

9788466356893.webp

405 ms

9788411074933.webp

9788411074933.webp

413 ms

9780008421793.webp

9780008421793.webp

406 ms

9788419275813.webp

9788419275813.webp

413 ms

9788494709203.webp

9788494709203.webp

411 ms

9788419738813.webp

9788419738813.webp

420 ms

9788410522343.webp

9788410522343.webp

420 ms

3666114448403.webp

3666114448403.webp

421 ms

9788413143552.webp

9788413143552.webp

412 ms

9788466374842.webp

9788466374842.webp

432 ms

9788411326612.webp

9788411326612.webp

432 ms

9788448040802.webp

9788448040802.webp

428 ms

9781447294832.webp

9781447294832.webp

433 ms

9788427052192.webp

9788427052192.webp

432 ms

9788441440272.webp

9788441440272.webp

439 ms

9788466678742.webp

9788466678742.webp

449 ms

9788410096172.webp

9788410096172.webp

449 ms

9788410021242.webp

9788410021242.webp

435 ms

224032_promo_001-001_180x256px.webp

224032_promo_001-001_180x256px.webp

399 ms

AgendasEscolares180x256Cabecera.webp

AgendasEscolares180x256Cabecera.webp

398 ms

BANNER%20HOME%20PRINCIPAL%201200X430%2019%2008.webp

BANNER%20HOME%20PRINCIPAL%201200X430%2019%2008.webp

443 ms

22.05.10.RecogidaenLibreria.webp

22.05.10.RecogidaenLibreria.webp

429 ms

libro%20firmado%20370x200.webp

libro%20firmado%20370x200.webp

410 ms

3M%20370X200.webp

3M%20370X200.webp

431 ms

CICLOS%20180x256.webp

CICLOS%20180x256.webp

417 ms

LT%20ON%202024_180x250.webp

LT%20ON%202024_180x250.webp

430 ms

LANZAMIENTOS%20AGOSTO%202024_180x250.webp

LANZAMIENTOS%20AGOSTO%202024_180x250.webp

482 ms

marian%20rojas%20ON_591x240.webp

marian%20rojas%20ON_591x240.webp

455 ms

libros%20que%20inspiran_370x200.webp

libros%20que%20inspiran_370x200.webp

471 ms

booktokers_370x200.webp

booktokers_370x200.webp

460 ms

mens-sana-in-corpore-sano.webp

mens-sana-in-corpore-sano.webp

469 ms

contemporanea_c.png

contemporanea_c.png

469 ms

juvenil_c.png

juvenil_c.png

486 ms

infantil_c.png

infantil_c.png

510 ms

MicrosoftTeams-image%20(73).png

MicrosoftTeams-image%20(73).png

480 ms

MicrosoftTeams-image%20(75).png

MicrosoftTeams-image%20(75).png

490 ms

24.05.16.CuadernosVacaciones180x256.webp

24.05.16.CuadernosVacaciones180x256.webp

506 ms

0-2.png

0-2.png

510 ms

3-4.png

3-4.png

506 ms

5-6.png

5-6.png

506 ms

7-9.png

7-9.png

508 ms

10-12.png

10-12.png

515 ms

ebooks_verano2_180x250.webp

ebooks_verano2_180x250.webp

513 ms

vivlio-180x250.webp

vivlio-180x250.webp

512 ms

papeleria%20mix%20370%202.webp

papeleria%20mix%20370%202.webp

516 ms

juegos%20front%202.webp

juegos%20front%202.webp

527 ms

accLectura.webp

accLectura.webp

559 ms

8425402885826.webp

8425402885826.webp

340 ms

9788410096806.webp

9788410096806.webp

280 ms

9788413433226.webp

9788413433226.webp

340 ms

9788419975126.webp

9788419975126.webp

339 ms

9788419558916.webp

9788419558916.webp

339 ms

3666114328620.webp

3666114328620.webp

268 ms

9788467071320.webp

9788467071320.webp

269 ms

9788419835710.webp

9788419835710.webp

340 ms

9788425367250.webp

9788425367250.webp

338 ms

9780571334650.webp

9780571334650.webp

339 ms

9788408286820.webp

9788408286820.webp

339 ms

3666114448410.webp

3666114448410.webp

276 ms

9788420435510.webp

9788420435510.webp

339 ms

9788473294294.webp

9788473294294.webp

563 ms

9788426418784.webp

9788426418784.webp

442 ms

9788413147154.webp

9788413147154.webp

485 ms

9788408290094.webp

9788408290094.webp

440 ms

9788408282334.webp

9788408282334.webp

440 ms

3666114448434.webp

3666114448434.webp

441 ms

9788491296874.webp

9788491296874.webp

455 ms

9788419835734.webp

9788419835734.webp

456 ms

9788418226571.webp

9788418226571.webp

1004 ms

9788410021181.webp

9788410021181.webp

989 ms

9780140167771.webp

9780140167771.webp

991 ms

9788448868451.webp

9788448868451.webp

982 ms

3666114448441.webp

3666114448441.webp

985 ms

9788420476841.webp

9788420476841.webp

988 ms

9788410257191.webp

9788410257191.webp

991 ms

9788408290049.webp

9788408290049.webp

346 ms

9788491298359.webp

9788491298359.webp

345 ms

9788419131829.webp

9788419131829.webp

346 ms

9788419654939.webp

9788419654939.webp

362 ms

9788419746849.webp

9788419746849.webp

393 ms

9781399724869.webp

9781399724869.webp

376 ms

9781398518209.webp

9781398518209.webp

382 ms

9788419650979.webp

9788419650979.webp

390 ms

9788491299349.webp

9788491299349.webp

390 ms

9788466374767.webp

9788466374767.webp

336 ms

9788466374637.webp

9788466374637.webp

344 ms

9788466378277.webp

9788466378277.webp

344 ms

9788466374897.webp

9788466374897.webp

343 ms

9781398515697.webp

9781398515697.webp

344 ms

9788408281177.webp

9788408281177.webp

354 ms

9780241698907.webp

9780241698907.webp

361 ms

3666114448427.webp

3666114448427.webp

370 ms

9788466371858.webp

9788466371858.webp

461 ms

9788427052888.webp

9788427052888.webp

478 ms

9780241448748.webp

9780241448748.webp

483 ms

9788408278498.webp

9788408278498.webp

471 ms

9788418395208.webp

9788418395208.webp

483 ms

9788412744378.webp

9788412744378.webp

500 ms

9788425367328.webp

9788425367328.webp

471 ms

9788411002738.webp

9788411002738.webp

524 ms

9788413848358.webp

9788413848358.webp

482 ms

9788412366938.webp

9788412366938.webp

496 ms

3666114448458.webp

3666114448458.webp

496 ms

facebook.svg

facebook.svg

223 ms

twitter.svg

twitter.svg

236 ms

instagram.svg

instagram.svg

234 ms

youtube.svg

youtube.svg

240 ms

pinterest.svg

pinterest.svg

239 ms

spotify.svg

spotify.svg

241 ms

tiktok.svg

tiktok.svg

241 ms

plan_avanza_logo.png

plan_avanza_logo.png

243 ms

gobierno_logo.png

gobierno_logo.png

242 ms

9780241982105.webp

9780241982105.webp

256 ms

9788419734075.webp

9788419734075.webp

332 ms

3070900051195.webp

3070900051195.webp

357 ms

9788408259015.webp

9788408259015.webp

331 ms

9788419654915.webp

9788419654915.webp

318 ms

9788479538255.webp

9788479538255.webp

330 ms

9788466351935.webp

9788466351935.webp

318 ms

9788410025325.webp

9788410025325.webp

347 ms

9788408289715.webp

9788408289715.webp

363 ms

9788413149455.webp

9788413149455.webp

371 ms

9788419414335.webp

9788419414335.webp

364 ms

Accessibility Review

casadelibro.com accessibility score

84

Accessibility Issues

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

Buttons do not have an accessible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

casadelibro.com 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

Missing source maps for large first-party JavaScript

SEO Factors

casadelibro.com SEO score

100

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

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Casadelibro.com can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it matches the claimed language. Our system also found out that Casadelibro.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.

Social Sharing Optimization

casadelibro.com

Open Graph data is detected on the main page of Casa De Libro. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: