7.6 sec in total
561 ms
6.8 sec
171 ms
Visit tradein.tescomobile.com now to see the best up-to-date Tradein Tesco Mobile content for United Kingdom and also check out these interesting facts you probably never knew about tradein.tescomobile.com
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Visit tradein.tescomobile.comWe analyzed Tradein.tescomobile.com page load time and found that the first response time was 561 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
tradein.tescomobile.com performance score
name
value
score
weighting
Value4.1 s
21/100
10%
Value16.6 s
0/100
25%
Value13.9 s
1/100
10%
Value19,200 ms
0/100
30%
Value0.426
22/100
15%
Value31.0 s
0/100
10%
561 ms
85 ms
37 ms
118 ms
62 ms
Our browser made a total of 131 requests to load all elements on the main page. We found that 11% of them (15 requests) were addressed to the original Tradein.tescomobile.com, 10% (13 requests) were made to Nexus.ensighten.com and 9% (12 requests) were made to Eu-sonar.sociomantic.com. The less responsive or slowest element that took the longest time to load (4.6 sec) relates to the external source Live.sekindo.com.
Page size can be reduced by 341.4 kB (41%)
824.8 kB
483.5 kB
In fact, the total size of Tradein.tescomobile.com main page is 824.8 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. 45% of websites need less resources to load. Javascripts take 529.0 kB which makes up the majority of the site volume.
Potential reduce by 12.7 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 12.7 kB or 70% of the original size.
Potential reduce by 761 B
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. Tradein Tesco Mobile images are well optimized though.
Potential reduce by 260.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 260.6 kB or 49% of the original size.
Potential reduce by 67.2 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. Tradein.tescomobile.com needs all CSS files to be minified and compressed as it can save up to 67.2 kB or 66% of the original size.
Number of requests can be reduced by 88 (75%)
117
29
The browser has sent 117 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tradein Tesco Mobile. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
tradein.tescomobile.com
561 ms
gtm.js
85 ms
bootstrap.min.css
37 ms
jasny-bootstrap.min.css
118 ms
font-awesome.min.css
62 ms
online-site.min.css
269 ms
Bootstrap.js
97 ms
jquery-2.1.4.min.js
51 ms
jquery-ui.min.js
59 ms
bootstrap.min.js
56 ms
icheck.min.js
325 ms
jquery.unobtrusive-ajax.min.js
367 ms
jasny-bootstrap.min.js
378 ms
jquery.validate.min.js
54 ms
jquery.validate.unobtrusive.min.js
57 ms
online-site.min.js
379 ms
analytics.js
28 ms
collect
11 ms
collect
50 ms
ga-audiences
34 ms
conversion_async.js
50 ms
mmapi.js
72 ms
serverComponent.php
12 ms
68daa63c2a5bed1f74c051bc02ceee9d.js
14 ms
59 ms
22 ms
4bd2a92656f7f8a6f309c2203ee03b4e.js
31 ms
15c5b1a9457d0cf9eb7cc5a9b17c3d5d.js
33 ms
5c56fbd9538afbe1e24c4cacd58307a3.js
38 ms
2c29a39914d7e6e041c10cd02dc22a2d.js
51 ms
f3e0fd630e56b47d3102eb00339541f5.js
55 ms
9efdf5644d339e665b55214c0a761b11.js
55 ms
91a07dbbcddd42aac729b5d93ee9be52.js
64 ms
8a885aa2ce2fc370f21976866b855dd6.js
63 ms
522432b43f67646ede02251066b677cf.js
66 ms
3f3d3d53a4a068cbe65b4a37973dd229.js
65 ms
57 ms
97 ms
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95 ms
59 ms
fbevents.js
224 ms
103 ms
aquant.js
222 ms
tescomobile.png
488 ms
banner-background.png
188 ms
tescomobiletradein.svg
1070 ms
basket.svg
472 ms
herobannerlong.jpg
1004 ms
samsung.svg
522 ms
iphone.svg
489 ms
microsoft.svg
571 ms
sony.svg
569 ms
blackberry.svg
583 ms
htc.svg
672 ms
poweredbyredeem_reversed.svg
676 ms
123 ms
172 ms
223 ms
tescodisreg-webfont.woff
386 ms
tescodisbol-webfont.woff
307 ms
getbaskettotals
198 ms
getmanufacturerbydevicetypeid
189 ms
di.js
260 ms
9114.js
295 ms
tescomobile.js
175 ms
ga.js
65 ms
1648591638712092
60 ms
pixel;r=976381967;a=p-25zqQiuHqBRN-;labels=_fp.event.Homepage;rf=3;fpan=1;fpa=P0-1807634145-1504707523385;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1504707523384;tzo=-180;ref=;url=https%3A%2F%2Ftradein.tescomobile.com%2F;ogl=
123 ms
__utm.gif
101 ms
activityi;src=5273068;type=mobil0;cat=mobil0;u1=;u2=error;u3=;u4=;u5=;u6=;dc_lat=;dc_rdid=;tag_for_child_directed_treatment=;num=5965046943165.362;u20=GA1.2.2052267240.1504707523;ord=1
113 ms
tag.js
168 ms
shop-tescomobile-uk
435 ms
82 ms
removelastitemguidadded
120 ms
receiver.html
95 ms
ga-audiences
43 ms
x44205r915574119
78 ms
5784f92f58a0c8000b0d7d60
374 ms
Pong.ashx
75 ms
ILogger.aspx
75 ms
ILogger.aspx
75 ms
.jsonp
15 ms
minibasket
88 ms
bundle.js
14 ms
storage.secure.min.html
55 ms
zones
155 ms
17569646
456 ms
s44116578160319
201 ms
legacy_receiver.html
90 ms
getbaskettotals
87 ms
legacy_receiver.js
4 ms
impression
492 ms
view
96 ms
usrm
111 ms
rum
257 ms
Pug
211 ms
v1
190 ms
248 ms
UserMatch.ashx
209 ms
user_sync.php
621 ms
sync.cgi
736 ms
serve
374 ms
usersync
205 ms
liveCookieSync.php
4571 ms
user-sync
234 ms
us.gif
277 ms
17569646
145 ms
96 ms
match
138 ms
sd
25 ms
match
22 ms
match
143 ms
match
235 ms
match
4 ms
pixel
125 ms
tap.php
18 ms
match
268 ms
rum
8 ms
e3b68e01d1c8472d920eb57590cff4cf
8 ms
match
118 ms
sync
409 ms
match
96 ms
match
95 ms
match
94 ms
match
96 ms
pixel
56 ms
pixel
13 ms
pixel
45 ms
tap.php
6 ms
Pug
29 ms
tradein.tescomobile.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[role] values are not valid
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
Image elements do not have [alt] attributes
Links do not have a discernible name
tradein.tescomobile.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
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
tradein.tescomobile.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tradein.tescomobile.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Tradein.tescomobile.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.
tradein.tescomobile.com
Open Graph description is not detected on the main page of Tradein Tesco Mobile. 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: