Tools & Wizards About Us
grayline.is screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

grayline.is

Gray Line Iceland - Day Tours and Airport Transfers

Page Load Speed

2.8 sec in total

First Response

351 ms

Resources Loaded

1.8 sec

Page Rendered

610 ms

grayline.is screenshot

About Website

Welcome to grayline.is homepage info - get ready to check Gray Line best content for United States right away, or after learning these important things about grayline.is

Discover Iceland's stunning natural landscapes with Gray Line's day tours. Book today for unforgettable experiences and airport transfers.

Visit grayline.is

Key Findings

We analyzed Grayline.is page load time and found that the first response time was 351 ms and then it took 2.4 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

grayline.is performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

20/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value4.1 s

78/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

grayline.is

351 ms

grayline.is

307 ms

gtm.js

49 ms

bootstrap.css

74 ms

general.css

140 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 31% of them (17 requests) were addressed to the original Grayline.is, 33% (18 requests) were made to Nimiuscms.imgix.net and 11% (6 requests) were made to Global.localizecdn.com. The less responsive or slowest element that took the longest time to load (827 ms) relates to the external source Nimiuscms.s3.eu-west-1.amazonaws.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 125.8 kB (4%)

Content Size

3.0 MB

After Optimization

2.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Grayline.is main page is 3.0 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. 55% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 86.7 kB

  • Original 98.0 kB
  • After minification 51.1 kB
  • After compression 11.4 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 46.9 kB, which is 48% 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 86.7 kB or 88% of the original size.

Image Optimization

-1%

Potential reduce by 35.6 kB

  • Original 2.7 MB
  • After minification 2.7 MB

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. Gray Line images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.8 kB

  • Original 123.2 kB
  • After minification 123.2 kB
  • After compression 121.5 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

-5%

Potential reduce by 1.7 kB

  • Original 34.4 kB
  • After minification 34.4 kB
  • After compression 32.6 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. Grayline.is has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (40%)

Requests Now

45

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gray Line. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

grayline.is

grayline.is

351 ms

grayline.is

grayline.is

307 ms

gtm.js

gtm.js

49 ms

bootstrap.css

bootstrap.css

74 ms

general.css

general.css

140 ms

base.css

base.css

259 ms

merge.min.css

merge.min.css

260 ms

theme.css

theme.css

262 ms

webfont.js

webfont.js

20 ms

merge-script.js

merge-script.js

360 ms

common.js

common.js

329 ms

js.cookie.js

js.cookie.js

329 ms

localization.js

localization.js

384 ms

lozad.min.js

lozad.min.js

384 ms

3ef43c76.js

3ef43c76.js

617 ms

js

js

44 ms

css

css

58 ms

stokksnes-vestrahorn-andrew-mayovskyyhb-20230505101621.jpg

stokksnes-vestrahorn-andrew-mayovskyyhb-20230505101621.jpg

131 ms

grayline_logo_f15.svg

grayline_logo_f15.svg

115 ms

sprites.png

sprites.png

125 ms

graylinenewgooglebannersupdatead4-20240409145009.jpg

graylinenewgooglebannersupdatead4-20240409145009.jpg

827 ms

associations-2022.png

associations-2022.png

271 ms

localize.js

localize.js

112 ms

widget.js

widget.js

201 ms

polyfill.min.js

polyfill.min.js

297 ms

starfsfolk-minni2-20210913155602.png

starfsfolk-minni2-20210913155602.png

142 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

138 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

144 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

156 ms

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8RHYOLjOWA.ttf

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8RHYOLjOWA.ttf

164 ms

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8fbfOLjOWA.ttf

raxhHiqOu8IVPmnRc6SY1KXhnF_Y8fbfOLjOWA.ttf

173 ms

airport-directhbnr3-20231018084739.jpg

airport-directhbnr3-20231018084739.jpg

121 ms

aerial-view-gullfoss-waterfall-iceland-20190521165644.jpg

aerial-view-gullfoss-waterfall-iceland-20190521165644.jpg

147 ms

ah35-southc-jokulsarlon-20190521170020.jpg

ah35-southc-jokulsarlon-20190521170020.jpg

149 ms

laugarvatn-fontana-summerhb-20231114125324.jpg

laugarvatn-fontana-summerhb-20231114125324.jpg

148 ms

adobestock-310011976-jokularlon-20231219115328.jpg

adobestock-310011976-jokularlon-20231219115328.jpg

149 ms

geothermal-area-geysir-in-iceland-20240409151347.jpg

geothermal-area-geysir-in-iceland-20240409151347.jpg

128 ms

4-20190517115651.jpg

4-20190517115651.jpg

147 ms

6-20190515151614.jpg

6-20190515151614.jpg

134 ms

ah147-2-fx-20230724134927.jpg

ah147-2-fx-20230724134927.jpg

136 ms

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17-20231214123037.jpg

152 ms

1-20190517121425.jpg

1-20190517121425.jpg

156 ms

dsc9999-flattened-merge-copy-20220323131431.jpg

dsc9999-flattened-merge-copy-20220323131431.jpg

153 ms

sologlacierhike-20211008154723.jpg

sologlacierhike-20211008154723.jpg

167 ms

hveradalir-sm-20240423104105.jpg

hveradalir-sm-20240423104105.jpg

166 ms

dsc9527-copy-2-20211217082712.jpg

dsc9527-copy-2-20211217082712.jpg

154 ms

filming-of-flyover-iceland-20191004162519.jpg

filming-of-flyover-iceland-20191004162519.jpg

152 ms

tl.gif

tl.gif

53 ms

tu

tu

58 ms

g

g

60 ms

tl.gif

tl.gif

112 ms

g

g

17 ms

home.css

home.css

69 ms

last-minute.css

last-minute.css

75 ms

Accessibility Review

grayline.is accessibility score

70

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

High

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Best Practices

grayline.is best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

grayline.is SEO score

91

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

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 Grayline.is 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 Grayline.is 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

grayline.is

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