4.9 sec in total
337 ms
4.4 sec
199 ms
Visit alphalas.de now to see the best up-to-date ALPHALAS content for Germany and also check out these interesting facts you probably never knew about alphalas.de
DPSS Lasers - Q-Switched, CW, Modelocked, Laser Kits, Laser Diode Drivers, Photodetectors/Photodiodes, Waveplates, Laser Crystals, Nonlinear Crystals, Laser & Optical Components
Visit alphalas.deWe analyzed Alphalas.de page load time and found that the first response time was 337 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
alphalas.de performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value3.1 s
74/100
25%
Value3.0 s
93/100
10%
Value130 ms
96/100
30%
Value0.106
88/100
15%
Value4.4 s
83/100
10%
337 ms
1150 ms
437 ms
222 ms
219 ms
Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Alphalas.de, 87% (54 requests) were made to Alphalas.com and 3% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Alphalas.com.
Page size can be reduced by 416.0 kB (48%)
867.5 kB
451.4 kB
In fact, the total size of Alphalas.de main page is 867.5 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. 25% of websites need less resources to load. Javascripts take 451.9 kB which makes up the majority of the site volume.
Potential reduce by 61.2 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 61.2 kB or 74% of the original size.
Potential reduce by 62.0 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. Obviously, ALPHALAS needs image optimization as it can save up to 62.0 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 261.4 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 261.4 kB or 58% of the original size.
Potential reduce by 31.5 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. Alphalas.de needs all CSS files to be minified and compressed as it can save up to 31.5 kB or 87% of the original size.
Number of requests can be reduced by 35 (58%)
60
25
The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ALPHALAS. 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 6 to 1 for CSS and as a result speed up the page load time.
alphalas.de
337 ms
www.alphalas.com
1150 ms
template_css.css
437 ms
smartmini.js
222 ms
alphalas.css
219 ms
nivo-slider.css
224 ms
nivo-slider-includethemes.css
438 ms
jquery.min.js
31 ms
jquery.nivo.slider.pack.js
546 ms
ga-track-downloads-etc.js
455 ms
addthis_widget.js
9 ms
menu.css
362 ms
DropDownMenuX_Packed.js
433 ms
ga.js
66 ms
mb_bg.png
217 ms
mb_shadow_t.png
221 ms
mb_shadow_t_r.png
218 ms
mb_shadow_t_l.png
221 ms
mb_shadow_m_b_l.png
224 ms
mb_shadow_m_b_r.png
250 ms
mb_shadow_m_t_l.png
433 ms
mb_shadow_m_t_r.png
438 ms
alphalas-lasers-optics-electronics-logo.jpg
549 ms
alphalas-lasers-optics-electronics-slogan.jpg
550 ms
subnanosecond_q-switched_dpss_lasers_slide.jpg
653 ms
cw_single_frequency_dpss_lasers_slide.jpg
687 ms
Picosecond_Pulse_Diode_Lasers_with_Driver_slide.jpg
871 ms
DPSS_Laser_Kit_slide.jpg
975 ms
ultrafast_photodiodes_slide.jpg
971 ms
tunable_waveplates_slide.jpg
970 ms
ccd_line_camera_slide.jpg
1083 ms
mb_menu_horiz_bg.png
902 ms
mb_cshadow_l.png
1087 ms
mb_cshadow_t_l.png
1124 ms
mb_col_bg_blue.png
1184 ms
Ultrafast_Photodetector_thumb.gif
1190 ms
All-Solid-State_Blue_Laser_488_nm_thumb.jpg
1408 ms
Blue_High-Power_Laser_Diode_OEM_Modules_thumb.jpg
1512 ms
subnanosecond_passively_q-switched_microchip_dpss_laser_thumb.jpg
1305 ms
Picosecond_Pulse_Diode_Lasers_with_Driver_Thumb.jpg
1446 ms
Advanced_Digital_CCD_Line_Camera_with_USB_2.0_and_LabVIEW_Drivers.jpg
1721 ms
products-overview_lasers_optics_electronics.jpg
1629 ms
ALPHALAS_Lasers-Optics-Electronics_Flyer.jpg
1746 ms
__utm.gif
47 ms
boost
11 ms
300lo.json
37 ms
mb_cshadow_t.png
1560 ms
arrow.png
1596 ms
mb_cshadow_r.png
1671 ms
mb_cshadow_t_r.png
1784 ms
mb_col_bg_grey.png
1783 ms
mb_ushadow_orange_l.png
1820 ms
mb_user_orange_bg.png
1883 ms
sh.8e5f85691f9aaa082472a194.html
22 ms
mb_ushadow_orange_r.png
1744 ms
mb_shadow_b.png
1756 ms
mb_shadow_b_r.png
1851 ms
mb_shadow_b_l.png
1854 ms
loading.gif
1884 ms
nivo-slider-print.css
220 ms
arrows.png
218 ms
bullets.png
218 ms
alphalas.de 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Form elements do not have associated labels
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
alphalas.de 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
alphalas.de 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
N/A
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alphalas.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Alphalas.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
alphalas.de
Open Graph description is not detected on the main page of ALPHALAS. 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: