Tools & Wizards About Us
amstelbooks.com screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

amstelbooks.com

Amstelbooks - rare and out of print photography books

Page Load Speed

7.8 sec in total

First Response

26 ms

Resources Loaded

7.5 sec

Page Rendered

295 ms

amstelbooks.com screenshot

About Website

Welcome to amstelbooks.com homepage info - get ready to check Amstelbooks best content right away, or after learning these important things about amstelbooks.com

Explore the world of photography through Amstelbooks' vast collection of artistic, black and white, street, and landscape photography books. Find your

Visit amstelbooks.com

Key Findings

We analyzed Amstelbooks.com page load time and found that the first response time was 26 ms and then it took 7.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

amstelbooks.com performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

16/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value7.9 s

43/100

10%

Network Requests Diagram

amstelbooks.com

26 ms

www.amstelbooks.com

3159 ms

1f2479ac4879f16e848c828bf5e3a4f8.min.css

164 ms

styles-l.min.css

140 ms

all.min.css

29 ms

Our browser made a total of 156 requests to load all elements on the main page. We found that 96% of them (150 requests) were addressed to the original Amstelbooks.com, 3% (4 requests) were made to Cdnjs.cloudflare.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Amstelbooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 259.6 kB (22%)

Content Size

1.2 MB

After Optimization

946.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Amstelbooks.com main page is 1.2 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. 50% of websites need less resources to load. Images take 684.4 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 167.2 kB

  • Original 192.0 kB
  • After minification 190.4 kB
  • After compression 24.9 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 167.2 kB or 87% of the original size.

Image Optimization

-1%

Potential reduce by 4.8 kB

  • Original 684.4 kB
  • After minification 679.6 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. Amstelbooks images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.8 kB

  • Original 216.7 kB
  • After minification 216.6 kB
  • After compression 213.9 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

-75%

Potential reduce by 84.8 kB

  • Original 113.2 kB
  • After minification 28.5 kB
  • After compression 28.4 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. Amstelbooks.com needs all CSS files to be minified and compressed as it can save up to 84.8 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 115 (77%)

Requests Now

150

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 150 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Amstelbooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 111 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

amstelbooks.com

amstelbooks.com

26 ms

www.amstelbooks.com

www.amstelbooks.com

3159 ms

1f2479ac4879f16e848c828bf5e3a4f8.min.css

1f2479ac4879f16e848c828bf5e3a4f8.min.css

164 ms

styles-l.min.css

styles-l.min.css

140 ms

all.min.css

all.min.css

29 ms

3fc24b028525643aef0a40bb64471389.min.js

3fc24b028525643aef0a40bb64471389.min.js

158 ms

animate.min-4.1.1.min.css

animate.min-4.1.1.min.css

129 ms

css2

css2

35 ms

email-decode.min.js

email-decode.min.js

18 ms

logo_1_.png

logo_1_.png

149 ms

2385-fangelse-banner-1_820_376.jpg

2385-fangelse-banner-1_820_376.jpg

150 ms

893-4_820_376.jpg

893-4_820_376.jpg

149 ms

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-4-1969-2718.jpg

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-4-1969-2718.jpg

151 ms

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-3-1969-2717.jpg

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-3-1969-2717.jpg

148 ms

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-6-1969-2716.jpg

ed-van-der-elsken-remco-campert-jan-cremer-bijster-no-6-1969-2716.jpg

211 ms

ed-van-der-elsken-avonturen-op-het-land-2712.jpg

ed-van-der-elsken-avonturen-op-het-land-2712.jpg

245 ms

josef-koudelka-gypsies-670.jpg

josef-koudelka-gypsies-670.jpg

267 ms

merry-foresta-stephen-jay-gould-karal-ann-marling-between-home-and-heaven-contemporary-american-landscape-photography-1820.jpg

merry-foresta-stephen-jay-gould-karal-ann-marling-between-home-and-heaven-contemporary-american-landscape-photography-1820.jpg

269 ms

germaine-krull-marseille-2665.jpg

germaine-krull-marseille-2665.jpg

269 ms

helena-tatay-huici-lluis-monreal-sugimoto-2395.jpg

helena-tatay-huici-lluis-monreal-sugimoto-2395.jpg

264 ms

daido-moriyama-daido-hysteric-no-6-1994-daido-moriyama-1639.jpg

daido-moriyama-daido-hysteric-no-6-1994-daido-moriyama-1639.jpg

335 ms

brassai-henry-miller-brassai-899.jpg

brassai-henry-miller-brassai-899.jpg

387 ms

ed-van-der-elsken-de-ontdekking-van-japan-2688.jpg

ed-van-der-elsken-de-ontdekking-van-japan-2688.jpg

404 ms

jacob-aue-sobol-ik-tokyo-2683.jpg

jacob-aue-sobol-ik-tokyo-2683.jpg

399 ms

huang-chien-hung-new-directions-trans-plex-weaving-platform-agenda-1256.jpg

huang-chien-hung-new-directions-trans-plex-weaving-platform-agenda-1256.jpg

392 ms

levasseur-jacques-le-goff-tourault-pierre-di-folco-sugiman-photo-metro-animation-culturelle-2108.jpg

levasseur-jacques-le-goff-tourault-pierre-di-folco-sugiman-photo-metro-animation-culturelle-2108.jpg

383 ms

henze-boekhout-seconds-first-1463.jpg

henze-boekhout-seconds-first-1463.jpg

459 ms

manuel-alvarez-bravo-the-eyes-in-his-eyes-1185.gif

manuel-alvarez-bravo-the-eyes-in-his-eyes-1185.gif

510 ms

nico-jesse-vrouwen-van-parijs-2711.jpg

nico-jesse-vrouwen-van-parijs-2711.jpg

521 ms

paul-wolff-formen-des-lebens-2710.jpg

paul-wolff-formen-des-lebens-2710.jpg

813 ms

jean-deniau-lyon-et-ses-environs-2709.jpg

jean-deniau-lyon-et-ses-environs-2709.jpg

534 ms

ian-nairn-the-american-landscape-a-critical-view-2708.jpg

ian-nairn-the-american-landscape-a-critical-view-2708.jpg

537 ms

pierre-presumey-doisneau-en-ardeche-2707.jpg

pierre-presumey-doisneau-en-ardeche-2707.jpg

589 ms

ingrid-von-kruse-zeit-und-augenblick-photo-portraits-2706.jpg

ingrid-von-kruse-zeit-und-augenblick-photo-portraits-2706.jpg

641 ms

guy-mandery-robert-doisneau-robert-doisneau-un-photographe-et-ses-livres-2245.jpg

guy-mandery-robert-doisneau-robert-doisneau-un-photographe-et-ses-livres-2245.jpg

654 ms

footer-payments.png

footer-payments.png

648 ms

jquery.min.js

jquery.min.js

837 ms

common.min.js

common.min.js

699 ms

dataPost.min.js

dataPost.min.js

753 ms

bootstrap.min.js

bootstrap.min.js

758 ms

app.min.js

app.min.js

776 ms

form-key-provider.min.js

form-key-provider.min.js

813 ms

mage-translation-dictionary.min.js

mage-translation-dictionary.min.js

863 ms

theme.min.js

theme.min.js

860 ms

font

font

84 ms

domReady.min.js

domReady.min.js

1157 ms

fa-solid-900.woff

fa-solid-900.woff

13 ms

fa-regular-400.woff

fa-regular-400.woff

65 ms

fa-brands-400.woff

fa-brands-400.woff

24 ms

jquery.infiniteScroll.min.js

jquery.infiniteScroll.min.js

797 ms

ubCountDown.min.js

ubCountDown.min.js

812 ms

Blank-Theme-Icons.woff

Blank-Theme-Icons.woff

819 ms

ajaxAddCart.min.js

ajaxAddCart.min.js

819 ms

jquery-mixin.min.js

jquery-mixin.min.js

787 ms

template.min.js

template.min.js

297 ms

confirm.min.js

confirm.min.js

315 ms

widget.min.js

widget.min.js

316 ms

main.min.js

main.min.js

340 ms

bootstrap.min.js

bootstrap.min.js

345 ms

types.min.js

types.min.js

386 ms

layout.min.js

layout.min.js

396 ms

ub-quickview.min.js

ub-quickview.min.js

341 ms

text.min.js

text.min.js

348 ms

main.js

main.js

238 ms

core.min.js

core.min.js

271 ms

translate.min.js

translate.min.js

310 ms

catalog-add-to-cart.min.js

catalog-add-to-cart.min.js

296 ms

catalog-add-to-cart-mixin.min.js

catalog-add-to-cart-mixin.min.js

304 ms

wrapper.min.js

wrapper.min.js

308 ms

underscore.min.js

underscore.min.js

276 ms

modal.min.js

modal.min.js

261 ms

version.min.js

version.min.js

326 ms

scripts.min.js

scripts.min.js

320 ms

knockout.min.js

knockout.min.js

345 ms

knockout-es5.min.js

knockout-es5.min.js

310 ms

engine.min.js

engine.min.js

328 ms

bootstrap.min.js

bootstrap.min.js

334 ms

observable_array.min.js

observable_array.min.js

585 ms

bound-nodes.min.js

bound-nodes.min.js

420 ms

main.min.js

main.min.js

369 ms

registry.min.js

registry.min.js

374 ms

console-logger.min.js

console-logger.min.js

372 ms

js-translation.json

js-translation.json

551 ms

data.min.js

data.min.js

599 ms

disable-selection.min.js

disable-selection.min.js

421 ms

focusable.min.js

focusable.min.js

714 ms

form.min.js

form.min.js

438 ms

ie.min.js

ie.min.js

539 ms

keycode.min.js

keycode.min.js

547 ms

labels.min.js

labels.min.js

572 ms

jquery-patch.min.js

jquery-patch.min.js

643 ms

plugin.min.js

plugin.min.js

645 ms

safe-active-element.min.js

safe-active-element.min.js

660 ms

safe-blur.min.js

safe-blur.min.js

691 ms

scroll-parent.min.js

scroll-parent.min.js

706 ms

tabbable.min.js

tabbable.min.js

756 ms

unique-id.min.js

unique-id.min.js

753 ms

product-ids-resolver.min.js

product-ids-resolver.min.js

721 ms

product-info-resolver.min.js

product-info-resolver.min.js

751 ms

product-info-resolver.min.js

product-info-resolver.min.js

760 ms

mage.min.js

mage.min.js

764 ms

modal-popup.html

modal-popup.html

971 ms

modal-slide.html

modal-slide.html

773 ms

modal-custom.html

modal-custom.html

985 ms

key-codes.min.js

key-codes.min.js

833 ms

z-index.min.js

z-index.min.js

837 ms

observable_source.min.js

observable_source.min.js

727 ms

renderer.min.js

renderer.min.js

775 ms

knockout-repeat.min.js

knockout-repeat.min.js

833 ms

knockout-fast-foreach.min.js

knockout-fast-foreach.min.js

852 ms

resizable.min.js

resizable.min.js

833 ms

i18n.min.js

i18n.min.js

879 ms

scope.min.js

scope.min.js

968 ms

range.min.js

range.min.js

886 ms

mage-init.min.js

mage-init.min.js

874 ms

keyboard.min.js

keyboard.min.js

861 ms

optgroup.min.js

optgroup.min.js

873 ms

after-render.min.js

after-render.min.js

789 ms

autoselect.min.js

autoselect.min.js

861 ms

datepicker.min.js

datepicker.min.js

835 ms

outer_click.min.js

outer_click.min.js

768 ms

fadeVisible.min.js

fadeVisible.min.js

775 ms

collapsible.min.js

collapsible.min.js

762 ms

staticChecked.min.js

staticChecked.min.js

749 ms

simple-checked.min.js

simple-checked.min.js

815 ms

bind-html.min.js

bind-html.min.js

762 ms

tooltip.min.js

tooltip.min.js

775 ms

color-picker.min.js

color-picker.min.js

763 ms

events.min.js

events.min.js

732 ms

arrays.min.js

arrays.min.js

727 ms

compare.min.js

compare.min.js

810 ms

misc.min.js

misc.min.js

780 ms

objects.min.js

objects.min.js

777 ms

strings.min.js

strings.min.js

760 ms

template.min.js

template.min.js

743 ms

local.min.js

local.min.js

723 ms

logger.min.js

logger.min.js

812 ms

entry-factory.min.js

entry-factory.min.js

767 ms

console-output-handler.min.js

console-output-handler.min.js

711 ms

formatter.min.js

formatter.min.js

721 ms

message-pool.min.js

message-pool.min.js

717 ms

levels-pool.min.js

levels-pool.min.js

676 ms

logger-utils.min.js

logger-utils.min.js

710 ms

product-ids.min.js

product-ids.min.js

716 ms

product-info.min.js

product-info.min.js

690 ms

class.min.js

class.min.js

692 ms

loader.min.js

loader.min.js

693 ms

async.min.js

async.min.js

694 ms

tooltip.html

tooltip.html

446 ms

spectrum.min.js

spectrum.min.js

446 ms

tinycolor.min.js

tinycolor.min.js

449 ms

entry.min.js

entry.min.js

233 ms

moment.min.js

moment.min.js

428 ms

dom-observer.min.js

dom-observer.min.js

112 ms

bindings.min.js

bindings.min.js

185 ms

print.min.css

print.min.css

117 ms

Accessibility Review

amstelbooks.com accessibility score

87

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

Links do not have a discernible 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

amstelbooks.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

amstelbooks.com SEO score

86

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Amstelbooks.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 Amstelbooks.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

amstelbooks.com

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