Tools & Wizards About Us
casadellibro.es screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    64% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

casadellibro.es

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

Page Load Speed

2.5 sec in total

First Response

308 ms

Resources Loaded

2.1 sec

Page Rendered

102 ms

casadellibro.es screenshot

About Website

Click here to check amazing Casa Del Libro content. Otherwise, check out these important facts you probably never knew about casadellibro.es

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

Visit casadellibro.es

Key Findings

We analyzed Casadellibro.es page load time and found that the first response time was 308 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

casadellibro.es performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value900 ms

31/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

casadellibro.es

308 ms

www.casadellibro.com

308 ms

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

383 ms

9788410257184.webp

322 ms

9788466364140.webp

436 ms

Our browser made a total of 163 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Casadellibro.es, 21% (34 requests) were made to Imagessl.casadellibro.com and 13% (21 requests) were made to Staticsni.casadellibro.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Imagessl6.casadellibro.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (48%)

Content Size

2.2 MB

After Optimization

1.1 MB

  • HTML
  • Images

In fact, the total size of Casadellibro.es main page is 2.2 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. 70% of websites need less resources to load. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 1.1 MB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 156.2 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 Del Libro images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 30 (19%)

Requests Now

161

After Optimization

131

  • Images
  • JavaScript

The browser has sent 161 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Casa Del 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

casadellibro.es

casadellibro.es

308 ms

www.casadellibro.com

www.casadellibro.com

308 ms

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

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

383 ms

9788410257184.webp

9788410257184.webp

322 ms

9788466364140.webp

9788466364140.webp

436 ms

2910026645353.webp

2910026645353.webp

426 ms

9788410704701.webp

9788410704701.webp

375 ms

9788419975089.webp

9788419975089.webp

437 ms

9788408294306.webp

9788408294306.webp

351 ms

9781471156267.webp

9781471156267.webp

461 ms

9781597112642.webp

9781597112642.webp

536 ms

9788417909635.webp

9788417909635.webp

1085 ms

9788408287308.webp

9788408287308.webp

400 ms

1721642791031-runtime.js

1721642791031-runtime.js

417 ms

default.js

default.js

449 ms

1721642791031-0.js

1721642791031-0.js

468 ms

1721642791031-1.js

1721642791031-1.js

479 ms

1721642791031-7.js

1721642791031-7.js

482 ms

1721642791031-5.js

1721642791031-5.js

478 ms

1721642791031-baner-cabecera.js

1721642791031-baner-cabecera.js

483 ms

1721642791031-top-3-cabecera.js

1721642791031-top-3-cabecera.js

481 ms

1721642791031-heading-h1.js

1721642791031-heading-h1.js

491 ms

1721642791031-hero-v4.js

1721642791031-hero-v4.js

496 ms

1721642791031-bloque-3-destacados.js

1721642791031-bloque-3-destacados.js

496 ms

1721642791031-creativity-half.js

1721642791031-creativity-half.js

499 ms

1721642791031-product-slider.js

1721642791031-product-slider.js

496 ms

1721642791031-10.js

1721642791031-10.js

503 ms

1721642791031-creativity.js

1721642791031-creativity.js

509 ms

1721642791031-todas-tematicas-con-imagenes.js

1721642791031-todas-tematicas-con-imagenes.js

514 ms

1721642791031-formas.js

1721642791031-formas.js

514 ms

1721642791031-top-tematicas.js

1721642791031-top-tematicas.js

516 ms

app.js

app.js

557 ms

app.js

app.js

586 ms

1721642791031-app.js

1721642791031-app.js

568 ms

9788418379253.webp

9788418379253.webp

324 ms

9788410190603.webp

9788410190603.webp

322 ms

9781526622433.webp

9781526622433.webp

324 ms

3666114448403.webp

3666114448403.webp

325 ms

9788420435503.webp

9788420435503.webp

339 ms

9788408290933.webp

9788408290933.webp

335 ms

9780008421793.webp

9780008421793.webp

368 ms

9788419275813.webp

9788419275813.webp

961 ms

9788494709203.webp

9788494709203.webp

367 ms

9788410522343.webp

9788410522343.webp

370 ms

9788466431682.webp

9788466431682.webp

441 ms

9788419654892.webp

9788419654892.webp

465 ms

9788411326612.webp

9788411326612.webp

499 ms

9788448040802.webp

9788448040802.webp

486 ms

9781408728512.webp

9781408728512.webp

504 ms

9788427052192.webp

9788427052192.webp

568 ms

9788441440272.webp

9788441440272.webp

1057 ms

9788466678742.webp

9788466678742.webp

529 ms

9788410096172.webp

9788410096172.webp

527 ms

pasatiempos_180x256%20(1).webp

pasatiempos_180x256%20(1).webp

253 ms

23.09.07.booktokers_180x256.webp

23.09.07.booktokers_180x256.webp

337 ms

Web-180x256.webp

Web-180x256.webp

316 ms

CAMP%20INTE_180x256.webp

CAMP%20INTE_180x256.webp

316 ms

libro-cat_180x256.webp

libro-cat_180x256.webp

306 ms

AgendasEscolares180x256Cabecera.webp

AgendasEscolares180x256Cabecera.webp

315 ms

novedades_SEMANA25_2024_1200x430.webp

novedades_SEMANA25_2024_1200x430.webp

389 ms

22.05.10.RecogidaenLibreria.webp

22.05.10.RecogidaenLibreria.webp

386 ms

libro%20firmado%20370x200.webp

libro%20firmado%20370x200.webp

368 ms

3M%20370X200.webp

3M%20370X200.webp

374 ms

LT%20ON%202024_180x250.webp

LT%20ON%202024_180x250.webp

387 ms

24.05.16.CuadernosVacaciones180x256.webp

24.05.16.CuadernosVacaciones180x256.webp

405 ms

24.07.01WEB-180x256.webp

24.07.01WEB-180x256.webp

412 ms

24.07.01-BENAVENT%20ON_591x240.webp

24.07.01-BENAVENT%20ON_591x240.webp

623 ms

libros%20que%20inspiran_370x200.webp

libros%20que%20inspiran_370x200.webp

448 ms

booktokers_370x200.webp

booktokers_370x200.webp

417 ms

mens-sana-in-corpore-sano.webp

mens-sana-in-corpore-sano.webp

421 ms

contemporanea_c.png

contemporanea_c.png

503 ms

juvenil_c.png

juvenil_c.png

474 ms

infantil_c.png

infantil_c.png

465 ms

MicrosoftTeams-image%20(73).png

MicrosoftTeams-image%20(73).png

465 ms

MicrosoftTeams-image%20(75).png

MicrosoftTeams-image%20(75).png

493 ms

LANZAMIENTOS%20JULIO%202024_180x250.webp

LANZAMIENTOS%20JULIO%202024_180x250.webp

494 ms

0-2.png

0-2.png

535 ms

3-4.png

3-4.png

534 ms

5-6.png

5-6.png

544 ms

7-9.png

7-9.png

542 ms

10-12.png

10-12.png

569 ms

ebooks_verano2_180x250.webp

ebooks_verano2_180x250.webp

571 ms

vivlio-180x250.webp

vivlio-180x250.webp

566 ms

papeleria%20mix%20370%202.webp

papeleria%20mix%20370%202.webp

607 ms

juegos%20front%202.webp

juegos%20front%202.webp

596 ms

accLectura.webp

accLectura.webp

613 ms

9788449333736.webp

9788449333736.webp

246 ms

9788413433226.webp

9788413433226.webp

317 ms

9788419975126.webp

9788419975126.webp

1098 ms

9788419558916.webp

9788419558916.webp

1417 ms

9788419851116.webp

9788419851116.webp

317 ms

9788411074636.webp

9788411074636.webp

428 ms

9788408294290.webp

9788408294290.webp

281 ms

3666114328620.webp

3666114328620.webp

380 ms

9788491296010.webp

9788491296010.webp

1182 ms

9788425367250.webp

9788425367250.webp

375 ms

9780571334650.webp

9780571334650.webp

405 ms

9788423365500.webp

9788423365500.webp

366 ms

9788408286820.webp

9788408286820.webp

369 ms

9788408202400.webp

9788408202400.webp

430 ms

3666114448410.webp

3666114448410.webp

415 ms

9788409625994.webp

9788409625994.webp

158 ms

9788411826464.webp

9788411826464.webp

191 ms

9788408290834.webp

9788408290834.webp

196 ms

9788419245984.webp

9788419245984.webp

249 ms

9788408290964.webp

9788408290964.webp

249 ms

9788491296874.webp

9788491296874.webp

248 ms

9788413443294.webp

9788413443294.webp

197 ms

9788416997954.webp

9788416997954.webp

253 ms

9788401032974.webp

9788401032974.webp

256 ms

9781408891384.webp

9781408891384.webp

258 ms

9788419738684.webp

9788419738684.webp

328 ms

3666114448434.webp

3666114448434.webp

308 ms

9788466678674.webp

9788466678674.webp

1283 ms

3666114448441.webp

3666114448441.webp

247 ms

9788420476841.webp

9788420476841.webp

285 ms

9788408292661.webp

9788408292661.webp

322 ms

9788449342271.webp

9788449342271.webp

314 ms

9780140167771.webp

9780140167771.webp

340 ms

9788448868451.webp

9788448868451.webp

307 ms

9788418782411.webp

9788418782411.webp

319 ms

9788410021181.webp

9788410021181.webp

329 ms

9788410257191.webp

9788410257191.webp

357 ms

9788408290049.webp

9788408290049.webp

274 ms

9788491299349.webp

9788491299349.webp

354 ms

9788419131829.webp

9788419131829.webp

315 ms

9788419650979.webp

9788419650979.webp

342 ms

9788491298359.webp

9788491298359.webp

348 ms

9788419688507.webp

9788419688507.webp

313 ms

9788419346537.webp

9788419346537.webp

351 ms

9781398515697.webp

9781398515697.webp

383 ms

9781786892737.webp

9781786892737.webp

384 ms

9788408281177.webp

9788408281177.webp

374 ms

9780241698907.webp

9780241698907.webp

387 ms

3666114448427.webp

3666114448427.webp

471 ms

9788419767288.webp

9788419767288.webp

307 ms

9788408278498.webp

9788408278498.webp

378 ms

9788425367328.webp

9788425367328.webp

447 ms

9788411002738.webp

9788411002738.webp

385 ms

9788413848358.webp

9788413848358.webp

380 ms

9788412366938.webp

9788412366938.webp

399 ms

3666114448458.webp

3666114448458.webp

406 ms

CDL-LogoSecundario-RGB.svg

CDL-LogoSecundario-RGB.svg

125 ms

ico_usuario.svg

ico_usuario.svg

130 ms

ico_cesta.svg

ico_cesta.svg

15 ms

ico_lupa.svg

ico_lupa.svg

19 ms

ico_librer%C3%ADas.svg

ico_librer%C3%ADas.svg

18 ms

facebook.svg

facebook.svg

123 ms

twitter.svg

twitter.svg

125 ms

instagram.svg

instagram.svg

128 ms

youtube.svg

youtube.svg

127 ms

pinterest.svg

pinterest.svg

133 ms

spotify.svg

spotify.svg

129 ms

tiktok.svg

tiktok.svg

130 ms

plan_avanza_logo.png

plan_avanza_logo.png

130 ms

gobierno_logo.png

gobierno_logo.png

140 ms

9780241982105.webp

9780241982105.webp

944 ms

9780241995365.webp

9780241995365.webp

1044 ms

9788408289715.webp

9788408289715.webp

990 ms

9788466356145.webp

9788466356145.webp

1004 ms

8432715169055.webp

8432715169055.webp

982 ms

9788413149455.webp

9788413149455.webp

1001 ms

9788419414335.webp

9788419414335.webp

997 ms

Accessibility Review

casadellibro.es 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

casadellibro.es best practices score

75

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

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

casadellibro.es 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 Casadellibro.es 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 Casadellibro.es 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

casadellibro.es

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