3.2 sec in total
18 ms
829 ms
2.3 sec
Visit sierraoncology.com now to see the best up-to-date Sierraoncology content for United States and also check out these interesting facts you probably never knew about sierraoncology.com
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Visit sierraoncology.comWe analyzed Sierraoncology.com page load time and found that the first response time was 18 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
sierraoncology.com performance score
name
value
score
weighting
Value9.2 s
0/100
10%
Value25.1 s
0/100
25%
Value16.1 s
0/100
10%
Value960 ms
29/100
30%
Value0
100/100
15%
Value25.0 s
0/100
10%
18 ms
25 ms
40 ms
28 ms
121 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Sierraoncology.com, 95% (56 requests) were made to Gsk.com and 2% (1 request) were made to Tags.tiqcdn.com. The less responsive or slowest element that took the longest time to load (122 ms) relates to the external source Gsk.com.
Page size can be reduced by 2.4 MB (44%)
5.4 MB
3.0 MB
In fact, the total size of Sierraoncology.com main page is 5.4 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. 85% 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. Images take 2.1 MB which makes up the majority of the site volume.
Potential reduce by 234.8 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 123.8 kB, which is 47% 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 234.8 kB or 89% of the original size.
Potential reduce by 39.7 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. Sierraoncology images are well optimized though.
Potential reduce by 1.0 MB
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 1.0 MB or 59% of the original size.
Potential reduce by 1.1 MB
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. Sierraoncology.com needs all CSS files to be minified and compressed as it can save up to 1.1 MB or 88% of the original size.
Number of requests can be reduced by 7 (14%)
51
44
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sierraoncology. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
sierraoncology.com
18 ms
www.gsk.com
25 ms
40 ms
styles.css
28 ms
scripts.min.js
121 ms
utag.js
120 ms
icon-sprite.svg
65 ms
gif_logo_opt.gif
64 ms
icon-nav-arrow-down-white.svg
75 ms
icon-nav-arrow-grey.svg
76 ms
web08-header-dna_science.jpg
77 ms
trust_nicola_nav.jpg
80 ms
vaccine-manufacturing-production-line-1.jpg
78 ms
gsk_roundtable_16x9_1.jpg
77 ms
web03-header-stvg_2_2022_port_5_hess_nav.jpg
78 ms
navthumb_stvg_03_2022_port_32_eagle_orange-1.jpg
79 ms
web16-header-stvg_2_2022_port_13_hess_nav.jpg
112 ms
gsk_texture_fluid_03_a_cmyk_web-size_nav.jpg
112 ms
ware_3_2022_prodassmb_28_hess_nav.jpeg
82 ms
ware_3_2022_prodqc_14_hess.jpeg
112 ms
up_10_2022_lab_023_hess_jpg.png
81 ms
icon-external-white.svg
81 ms
pinch-left-mask.svg
86 ms
twist-right-mask.svg
86 ms
icon-external-alt.svg
88 ms
twist-mask.svg
107 ms
vaccine-manufacturing-production-line-2.jpg
108 ms
shutterstock_1379935829-2.jpg
109 ms
global-health_kenya_22-002.jpg
108 ms
wavre_11_2022_vxmanuf_010_hess_jpg.jpg
109 ms
gsk_lungs_6k_cmykjpg.jpg
111 ms
lagos2.jpg
112 ms
stem-image.jpg
113 ms
web01-secondary-8-gsk_03_2022_port_8_eagle_light.jpg
122 ms
web01-secondary-9-gskh_2_2022_smtspc_37_hess.jpg
113 ms
web01-secondary-10-gskh_3_2022_port_33_hess.jpg
120 ms
stvg_2_2022_smtlab_17_hess.jpg
113 ms
pinch-white-bg.svg
113 ms
euan-1280.jpg
115 ms
mugdha-1280.jpg
116 ms
pal-1280.jpg
110 ms
pj-final.jpg
65 ms
jess-image.jpg
56 ms
gsk_precisionpoint_1280x720_trust_fiona.jpg
47 ms
web14-header-hct_5328.jpg
55 ms
web15-header-gsk_rix_24_10_18_p_d2_s1_128.jpg
46 ms
ocjh1035_gsk-patientshoot1_london-am_0174-2.jpg
45 ms
web16-header-stvg_2_2022_port_13_hess.jpg
46 ms
ware_3_2022_prodqc_38_hess-1.jpg
46 ms
ware_3_2022_prodqc_21_hess-1.jpg
47 ms
icon-continue.svg
46 ms
back-to-to-arrow.svg
47 ms
gsk-logo.png
46 ms
icon-rss-white.svg
46 ms
GSK-Regular.woff
28 ms
GSK-Light.woff
26 ms
GSK-Bold.woff
28 ms
icomoon.woff
26 ms
PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA
0 ms
sierraoncology.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.
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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
sierraoncology.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
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
sierraoncology.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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sierraoncology.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 Sierraoncology.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.
sierraoncology.com
Open Graph data is detected on the main page of Sierraoncology. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: