8.9 sec in total
269 ms
8.5 sec
209 ms
Visit screw-jack.com now to see the best up-to-date Screw Jack content and also check out these interesting facts you probably never knew about screw-jack.com
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Visit screw-jack.comWe analyzed Screw-jack.com page load time and found that the first response time was 269 ms and then it took 8.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
screw-jack.com performance score
name
value
score
weighting
Value2.8 s
55/100
10%
Value4.4 s
39/100
25%
Value5.3 s
58/100
10%
Value170 ms
93/100
30%
Value0.004
100/100
15%
Value3.5 s
92/100
10%
269 ms
250 ms
10 ms
260 ms
248 ms
Our browser made a total of 99 requests to load all elements on the main page. We found that 34% of them (34 requests) were addressed to the original Screw-jack.com, 55% (54 requests) were made to Skin.wbscdn.com and 11% (11 requests) were made to Image.tradett.com.74.tradett.cn. The less responsive or slowest element that took the longest time to load (7.6 sec) relates to the external source Image.tradett.com.74.tradett.cn.
Page size can be reduced by 120.2 kB (6%)
2.1 MB
2.0 MB
In fact, the total size of Screw-jack.com main page is 2.1 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. 35% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 63.6 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 10.8 kB, which is 15% 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 63.6 kB or 87% of the original size.
Potential reduce by 44.6 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. Screw Jack images are well optimized though.
Potential reduce by 10.0 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 10.0 kB or 23% of the original size.
Potential reduce by 2.0 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. Screw-jack.com needs all CSS files to be minified and compressed as it can save up to 2.0 kB or 28% of the original size.
Number of requests can be reduced by 22 (22%)
98
76
The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Screw Jack. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
www.screw-jack.com
269 ms
css.css
250 ms
comm.js
10 ms
jquery-1.5.1.min.js
260 ms
banner.js
248 ms
plant.js
246 ms
js.js
246 ms
app.js
247 ms
show.js
251 ms
jquery.fxMarquee.js
251 ms
home.js
252 ms
dialog.css
9 ms
banner.css
8 ms
plant.css
7 ms
logo.jpg
85 ms
20210410002724171141901.jpg
4162 ms
skype.jpg
20 ms
qq.jpg
21 ms
eng.jpg
42 ms
i1.jpg
20 ms
i2.jpg
22 ms
i4.jpg
344 ms
i3.jpg
43 ms
i5.jpg
1599 ms
i6.jpg
687 ms
contactus.jpg
41 ms
ic1.jpg
49 ms
ic2.jpg
52 ms
ic3.jpg
47 ms
ic4.jpg
54 ms
order-code-for-cubic-miter-gearbox.jpg
397 ms
high-speed-manual-screw-jack-bevel-gear-mechanism.jpg
695 ms
super-small-and-lightweight-manual-screw-jack-with-handwheel.jpg
408 ms
electric-cylinder-actuator-description.jpg
694 ms
cubic-miter-gearbox-description.jpg
1967 ms
bevel-gear-ball-screw-jack-description.jpg
760 ms
order-code-for-bevel-gear-ball-screw-jack.jpg
692 ms
order-code-for-electric-cylinder-actuator.jpg
1646 ms
hand-operated-screw-jack.jpg
1047 ms
jtp65-small-miter-gearbox.jpg
1046 ms
jca25-jcb25-electric-cylinder-actuator.jpg
813 ms
jtp90-miter-gearbox.jpg
1167 ms
electric-screw-jack.jpg
2897 ms
bevel-gear-acme-screw-jack-description.jpg
2595 ms
jtgb12-bevel-gear-ball-screw-jack.jpg
1169 ms
jtgb15-bevel-gear-ball-screw-jack.jpg
1171 ms
order-code-for-bevel-gear-acme-screw-jack.jpg
1173 ms
bg.jpg
21 ms
tooli.jpg
18 ms
china.jpg
28 ms
menuli.jpg
16 ms
left.jpg
18 ms
ltit.jpg
28 ms
dt.jpg
27 ms
app.jpg
28 ms
app1.jpg
28 ms
app2.jpg
28 ms
app3.jpg
682 ms
app4.jpg
988 ms
app5.jpg
380 ms
cttit.jpg
1287 ms
search_input.jpg
336 ms
search.jpg
382 ms
hotpro.jpg
988 ms
lbut.jpg
382 ms
rbut.jpg
384 ms
1.%20Electric%20Screw%20Jack.jpg
1942 ms
2.%20Manual%20Screw%20Jack.jpg
1954 ms
3.%20JT%20Acme%20Screw%20Jack.jpg
1631 ms
4.%20JTC%20Cubic%20Screw%20Jack.jpg
1000 ms
5.%20JTM%20Worm%20Screw%20Jack.jpg
1955 ms
6.%20JTW%20Machine%20Screw%20Jack.jpg
2262 ms
7.%20JTB%20Ball%20Screw%20Jack.jpg
1289 ms
8.%20JTS%20Bevel%20Gear%20Jack.jpg
1942 ms
9.%20JTD%20Cubic%20Ball%20Screw%20Jack.jpg
1637 ms
10.%20JSS%20Stainless%20Steel%20Jack.jpg
4412 ms
11.%20Electric%20Linear%20Cylinder.jpg
3860 ms
12.%20Screw%20Jack%20System.jpg
3906 ms
13.%20Lift%20System%20Accessories.jpg
5328 ms
14.%20Parallel%20Linear%20Actuators.jpg
5327 ms
15.%20Inline%20Linear%20Actuators.jpg
2268 ms
16.%20JT%20Miter%20Gearbox(T).jpg
4520 ms
20220508175153481219361.jpg
5638 ms
20220508174956483777031.jpg
5641 ms
20220508175005296866551.jpg
4109 ms
20220508175936212428651.jpg
5013 ms
20220508175945014045591.jpg
4713 ms
20220508175458441126071.jpg
6569 ms
20220508175510334796851.jpg
6569 ms
20220508175911461052761.jpg
7556 ms
20220508180238851910651.jpg
7206 ms
20220508174441797466981.jpg
7204 ms
17.%20JTP%20Miter%20Gearbox(Cubic).jpg
4553 ms
18.%20JTA%20Miter%20Gearbox(Mini).jpg
4671 ms
board.jpg
4749 ms
plant.jpg
4911 ms
More.gif
4547 ms
appclickon.gif
4542 ms
appclick.gif
4543 ms
screw-jack.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Form elements do not have associated labels
Links do not have a discernible name
screw-jack.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
screw-jack.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Screw-jack.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 Screw-jack.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.
screw-jack.com
Open Graph description is not detected on the main page of Screw Jack. 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: