5.6 sec in total
109 ms
2.2 sec
3.3 sec
Visit history.nih.gov now to see the best up-to-date History NIH content for China and also check out these interesting facts you probably never knew about history.nih.gov
Our exhibits are spread out in several buildings across the NIH campus. At this point in time, the NIH campus is closed to visitors https://www.nih.gov/about-nih/visitor-information except for those w...
Visit history.nih.govWe analyzed History.nih.gov page load time and found that the first response time was 109 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
history.nih.gov performance score
name
value
score
weighting
Value7.3 s
1/100
10%
Value27.4 s
0/100
25%
Value11.5 s
5/100
10%
Value2,050 ms
7/100
30%
Value0.013
100/100
15%
Value31.2 s
0/100
10%
109 ms
286 ms
105 ms
220 ms
277 ms
Our browser made a total of 61 requests to load all elements on the main page. We found that 93% of them (57 requests) were addressed to the original History.nih.gov, 3% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Dap.digitalgov.gov. The less responsive or slowest element that took the longest time to load (516 ms) belongs to the original domain History.nih.gov.
Page size can be reduced by 739.6 kB (7%)
11.1 MB
10.3 MB
In fact, the total size of History.nih.gov main page is 11.1 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. 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 10.8 MB which makes up the majority of the site volume.
Potential reduce by 64.6 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 11.8 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 64.6 kB or 81% of the original size.
Potential reduce by 657.6 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. History NIH images are well optimized though.
Potential reduce by 622 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 16.9 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. History.nih.gov has all CSS files already compressed.
Number of requests can be reduced by 28 (57%)
49
21
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of History NIH. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.
history.nih.gov
109 ms
history.nih.gov
286 ms
batch.css
105 ms
batch.css
220 ms
com.adaptavist.confluence.theme.engine:layout-fixes.css
277 ms
colors.css
275 ms
batch.js
358 ms
batch.js
353 ms
com.adaptavist.confluence.theme.engine:tb-helper.js
306 ms
theme-resources.action
328 ms
theme-resources.action
305 ms
theme-resources.action
327 ms
Universal-Federated-Analytics-Min.js
347 ms
uswds.min.js
350 ms
stop-crawler-page-history.js
349 ms
imageMapResizer.min.js
491 ms
uswds.css
80 ms
augmented.css
46 ms
hamburger2and_sticky-toc.css
53 ms
hamburger.css
44 ms
card.css
39 ms
chevron.css
36 ms
oswald.css
143 ms
judson.css
144 ms
roboto.css
143 ms
hhs.png
157 ms
external-link.svg
151 ms
nih_history_master_logo_2color-2x.png
159 ms
close.svg
155 ms
angle-arrow-down-white.svg
153 ms
search.svg
156 ms
nci-vol-2241-300-straight.jpg
288 ms
02-the%20Nirenberg%20exhibit-close%20up%20of%20Dr.%20Philip%20Leder-2-sq.jpg
516 ms
Archives-banner-sq.png
301 ms
fdr-nih.png
296 ms
Canyon-1006-sm.jpg
279 ms
michele-behind-the-mask-0339-sq.jpg
202 ms
KimPelis.jpg
286 ms
9%20COVID%20recruitment%20flyer.jpg
383 ms
facebook25.png
380 ms
flickr-icon.png
381 ms
twitter16.png
383 ms
NIH_History_Master_Logo_2Color-white.png
380 ms
analytics.js
194 ms
sourcesanspro-regular-webfont.woff
332 ms
sourcesanspro-light-webfont.woff
193 ms
sourcesanspro-bold-webfont.woff
192 ms
sourcesanspro-italic-webfont.woff
192 ms
sourcesanspro-lightitalic-webfont.woff
335 ms
sourcesanspro-bolditalic-webfont.woff
195 ms
blue-arrow-01.svg
108 ms
facebook25-w.svg
110 ms
twitter16-w.svg
245 ms
flickr-icon-w.svg
246 ms
address.svg
249 ms
phone-numbers.svg
250 ms
email-address.svg
258 ms
collect
144 ms
remote.loader.js
78 ms
sourcesanspro-regular-webfont.ttf
261 ms
sourcesanspro-lightitalic-webfont.ttf
93 ms
history.nih.gov accessibility score
history.nih.gov 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
history.nih.gov SEO score
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 History.nih.gov 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 History.nih.gov 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.
history.nih.gov
Open Graph description is not detected on the main page of History NIH. 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: