11.7 sec in total
223 ms
7.2 sec
4.3 sec
Welcome to tescoopticians.com homepage info - get ready to check Tesco Opticians best content for United Kingdom right away, or after learning these important things about tescoopticians.com
Book your eye test online at Vision Express. Buy prescription glasses, sunglasses & contact lenses online or at your local Vision Express store.
Visit tescoopticians.comWe analyzed Tescoopticians.com page load time and found that the first response time was 223 ms and then it took 11.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
tescoopticians.com performance score
name
value
score
weighting
Value3.5 s
36/100
10%
Value13.6 s
0/100
25%
Value6.1 s
44/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value3.5 s
92/100
10%
223 ms
386 ms
384 ms
715 ms
1535 ms
Our browser made a total of 28 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Tescoopticians.com, 25% (7 requests) were made to Cdn.cookielaw.org and 18% (5 requests) were made to Cdn.grandvision.io. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source Cdn.grandvision.io.
Page size can be reduced by 461.1 kB (85%)
544.0 kB
82.9 kB
In fact, the total size of Tescoopticians.com main page is 544.0 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 440.1 kB which makes up the majority of the site volume.
Potential reduce by 370.2 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 370.2 kB or 84% of the original size.
Potential reduce by 64 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.
Potential reduce by 90.8 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. Tescoopticians.com needs all CSS files to be minified and compressed as it can save up to 90.8 kB or 94% of the original size.
Number of requests can be reduced by 17 (63%)
27
10
The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tesco Opticians. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.
www.visionexpress.com
223 ms
polyfill.min.js
386 ms
otSDKStub.js
384 ms
_app-4a65ce15c6c30b7948da.css
715 ms
polyfills-a40ef1678bae11e696dba45124eadd70.js
1535 ms
webpack-85e42adf89fdee233744.js
1877 ms
framework-62f734e5a1093e248421.js
1878 ms
main-61b55cef79ea258834dc.js
1875 ms
_app-ac36415e9e64b1a5dfeb.js
2694 ms
container-060bed5e69dcdc53fadb.js
2057 ms
_buildManifest.js
2056 ms
_ssgManifest.js
2098 ms
v652eace1692a40cfa3763df669d7439c1639079717194
1449 ms
131684eb-fff9-460f-adbc-71c0f1057508.json
893 ms
gtm.js
1524 ms
logo-1.png
2317 ms
logo-1.png
2781 ms
country-flag-gb.svg
3559 ms
vision-express-opticians-logo.svg
3632 ms
rb_badge_2022_hor.png
3558 ms
otBannerSdk.js
623 ms
en.json
1191 ms
gtm.js
1084 ms
gtm.js
928 ms
gtm.js
887 ms
otCenterRounded.json
280 ms
otPcTab.json
2178 ms
otCommonStyles.css
2242 ms
tescoopticians.com accessibility score
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
Image elements do not have [alt] attributes
Links do not have a discernible name
tescoopticians.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
tescoopticians.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
Image elements do not have [alt] attributes
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 doesn't use legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tescoopticians.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 Tescoopticians.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.
tescoopticians.com
Open Graph data is detected on the main page of Tesco Opticians. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: