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34 nih.gov Last Updated: 2 years

Success 47% of passed verification steps

Warning 23% of total warning

Errors 30% of total errors, require fast action

Mobile

Performance Desktop Score 91%

Best Practices Desktop Score 92%

SEO Desktop Score 100%

Progressive Web App Desktop Score 58%

Performance Mobile Score 63%

Best Practices Mobile Score 85%

SEO Mobile Score 100%

Progressive Web App Mobile Score 59%

Page Authority Authority 0%

Domain Authority Domain Authority 0%

Moz Rank 0.0/10

Bounce Rate Rate 0%

Charset Encoding

Great, language/character encoding is specified: UTF-8

Title Tag 67 Characters

NATIONAL INSTITUTES OF HEALTH (NIH) | TURNING DISCOVERY INTO HEALTH

Meta Description 350 Characters

Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical p

Effective URL 19 Characters

https://www.nih.gov

Excerpt Page content

National Institutes of Health (NIH) | Turning Discovery Into Health Skip to main content U.S. Department of Health & Human Services ...

Meta Keywords 10 Detected

NIH Health research funding medical research medical information grants biomedical disease prevention biological science clinical trials

Keywords Cloud Density

research23 health19 more14 information9 learn9 resources7 about6 glance6 quick6 news6

Keyword Consistency Keyword density is one of the main terms in SEO

Keyword	Freq	Title	Desc	Domain	H1	H2
research	23
health	19
more	14
information	9
learn	9
resources	7
about	6
glance	6
quick	6
news	6

Google Preview Your look like this in google search result

NATIONAL INSTITUTES OF HEALTH (NIH) | TURNING DISCOVERY INTO

https://www.nih.gov

Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. D

Robots.txt File Detected

http://nih.gov/robots.txt

Sitemap.xml File Detected

http://nih.gov/sitemap.xml

Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system

Updated: 1970-01-01 / 52 years

Create on: 1970-01-01 / 52 years

Expires on: 1970-01-01 / 627 months 23 days

Page Size Code & Text Ratio

Document Size: ~66.39 KB

Code Size: ~53.68 KB

Text Size: ~12.71 KB Ratio: 19.15%

Estimation Traffic and Earnings

Only Registered Users

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Technologies

PWA - Manifest

Manifest is not valid

Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Minimize third-party usage Third-party code blocked the main thread for 0 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Total Blocking Time 10 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

JavaScript execution time 0.1 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Server Backend Latencies 0 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Properly size images Potential savings of 61 KB

Serve images that are appropriately-sized to save cellular data and improve load time

Speed Index 1.2 s

Speed Index shows how quickly the contents of a page are visibly populated

First CPU Idle 1.3 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 983 KB

Large network payloads cost users real money and are highly correlated with long load times

Minimizes main-thread work 0.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

First Contentful Paint 1.2 s

First Contentful Paint marks the time at which the first text or image is painted

Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 24 chains found

The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load

Avoids an excessive DOM size 775 elements

A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)

Minify JavaScript Potential savings of 9 KB

Minifying JavaScript files can reduce payload sizes and script parse time

First Meaningful Paint 1.3 s

First Meaningful Paint measures when the primary content of a page is visible

Keep request counts low and transfer sizes small 57 requests • 983 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Serve static assets with an efficient cache policy 46 resources found

A long cache lifetime can speed up repeat visits to your page

Max Potential First Input Delay 60 ms

The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task

Time to Interactive 1.4 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Network Round Trip Times 0 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Estimated Input Latency 10 ms

Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy

Remove unused CSS Potential savings of 18 KB

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity

Serve images in next-gen formats Potential savings of 66 KB

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption

Server response times are low (TTFB) Root document took 160 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 790 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Mobile

Minimize third-party usage Third-party code blocked the main thread for 70 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Total Blocking Time 290 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

JavaScript execution time 0.7 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Defer offscreen images Potential savings of 10 KB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Server Backend Latencies 0 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Properly size images Potential savings of 10 KB

Serve images that are appropriately-sized to save cellular data and improve load time

Speed Index 4.4 s

Speed Index shows how quickly the contents of a page are visibly populated

First CPU Idle 5.0 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 641 KB

Large network payloads cost users real money and are highly correlated with long load times

Minimizes main-thread work 1.9 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

First Contentful Paint 4.4 s

First Contentful Paint marks the time at which the first text or image is painted

Includes front-end JavaScript libraries with known security vulnerabilities 3 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 24 chains found

Avoids an excessive DOM size 761 elements

Minify JavaScript Potential savings of 9 KB

Minifying JavaScript files can reduce payload sizes and script parse time

First Meaningful Paint 4.8 s

First Meaningful Paint measures when the primary content of a page is visible

Keep request counts low and transfer sizes small 53 requests • 641 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Serve static assets with an efficient cache policy 42 resources found

A long cache lifetime can speed up repeat visits to your page

Max Potential First Input Delay 220 ms

The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task

Time to Interactive 5.6 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Network Round Trip Times 0 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

First Contentful Paint (3G) 9598 ms

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Estimated Input Latency 40 ms

Tap targets are sized appropriately 100% appropriately sized tap targets

Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements

Document uses legible font sizes 99.98% legible text

Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px

Remove unused CSS Potential savings of 20 KB

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity

Serve images in next-gen formats Potential savings of 19 KB

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption

Server response times are low (TTFB) Root document took 40 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 2,940 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server

HTTP/1.1 200 OK
Accept-Ranges: bytes
Age: 1574
Cache-Control: public, max-age=21600
Content-Encoding: gzip
Content-Language: en
Content-Type: text/html; charset=utf-8
Date: Mon, 23 Dec 2019 09:31:18 GMT
Etag: "1577090121-1"
Expires: Sun, 19 Nov 1978 05:00:00 GMT
Last-Modified: Mon, 23 Dec 2019 08:35:21 GMT
Link: ; rel="canonical",; rel="shortlink"
Server: nginx
Strict-Transport-Security: max-age=31536000
Vary: Cookie,Accept-Encoding
Via: varnish
X-AH-Environment: prod
X-Cache: HIT
X-Cache-Hits: 594
X-Drupal-Cache: HIT
X-Frame-Options: SAMEORIGIN
X-Generator: Drupal 7 (http://drupal.org)
X-Request-ID: v-4ec747ec-2563-11ea-a854-7798859502fc
X-UA-Compatible: IE=edge,chrome=IE6
X-XSS-Protection: 1; mode=block
Connection: keep-alive

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	nih.gov	54.235.145.223	IN	7199
NS	nih.gov	ns3.nih.gov	IN	35713
NS	nih.gov	ns2.nih.gov	IN	35713
NS	nih.gov	ns.nih.gov	IN	35713
MX	nih.gov	nihcesxwayst05.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxway5.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxwayst06.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxway6.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxwayst03.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxway3.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxway4.hub.nih.gov	IN	2708
MX	nih.gov	nihcesxwayst04.hub.nih.gov	IN	2708
TXT	nih.gov	amazonses:vDxikFPIS0Am8dY/BlMuOFbJ2TuF64fRwUfkUGH67bY=	IN	7199
TXT	nih.gov	docusign=850d3223-bb46-4946-986b-2410b69ed0e7	IN	7199
TXT	nih.gov	amazonses:6dUQp3PJw2/pPriaGheRkNX6rVRchTDJCVkzGLDtftA=	IN	7199
TXT	nih.gov	SDRQ4Pu3aj2Qhnqm0Pu+NCsKPrfBbW56qXduqE9GxA/f5eo+/Ui6umgbTg9PW0hjeg21Q2yCpOALWHqZ91OwZQ==	IN	7199
TXT	nih.gov	adobe-idp-site-verification=5e85ea0ed34d3d2a09f830d0cfc77139471d15e20e771d90484e89895b0a9f1e	IN	7199
TXT	nih.gov	google-site-verification=8BC5Gnatu9NBfOph_lZpZyG2eDK0iPs0V8Li0RKzin8	IN	7199
TXT	nih.gov	webexdomainverification.2494X=72426cc0-664d-4a80-a6f4-113b7f648c9d	IN	7199
TXT	nih.gov	ciscocidomainverification=1b32b084b0eb3ade21d6a521cfa1db73d2a787817950f96cf35fe67d6fa84685	IN	7199
TXT	nih.gov	google-site-verification=zVNJw3i2goXwxAOFiO6ubfIWhKkgRnHS82Q7F6M6Gck	IN	7199
TXT	nih.gov	webexdomainverification.4C675B8AF44FB136E053AB06FC0A3F65=b1985124-e9bf-4009-a584-7dee024dc7e9	IN	7199
TXT	nih.gov	v=spf1 ip4:128.231.90.64/26 ip4:165.112.13.0/26 ip4:156.40.79.128/25 ip4:165.112.194.0/25 ip6:2607:f220:0404:8104::0/64 ip6:2607:f220:402:1a01::0/64 ~all	IN	7199
TXT	nih.gov	docusign=5a06ea48-7158-4d7c-a47f-624b9d0cebc9	IN	7199
TXT	nih.gov	webexdomainverification.4C675B8A8FC5B136E053AB06FC0A3F65=81f2d6dc-b5b1-4624-9e3f-278cb4163770	IN	7199
TXT	nih.gov	amazonses:Ckm+FeqyUMSBHOvsBsDHWeb1nuGAr6AWg5crTuJh47k=	IN	7199
TXT	nih.gov	atlassian-domain-verification=M8miGbHxuVJXXwPey7OjTsenahLoRkRITBf1OABYa/ivCVGKarHpaZR4c2q9wCXf	IN	7199
TXT	nih.gov	atlassian-domain-verification=MEXLlOkfpW4MRKQAmiBX68JLzmlcwWFpznBk1ZGyd2m0Ql13nbm1SUZfn/6Zsyhc	IN	7199
TXT	nih.gov	webexdomainverification.4C675B897222B136E053AB06FC0A3F65=cf14e0ca-cfec-4d2b-83ab-5971ee749040	IN	7199
TXT	nih.gov	amazonses:F99Cv1zG5C8JOyxlwPmjFx3qCOyQ7xJdwsNMHiJbEew=	IN	7199
TXT	nih.gov	webexdomainverification.4C675B8AEB46B136E053AB06FC0A3F65=a9568d05-1a3d-4c2b-9f45-3b5d786db694	IN	7199

Your Website Score is

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34 nih.gov Last Updated: 2 years

Desktop

Mobile

Estimation Traffic and Earnings

Sign up for see all features and reviews about this site

Technologies

Drupal

Google Font API

Nginx

PHP

Varnish

PWA - Manifest

Desktop

Mobile

Speed And Optimization Tips

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Alexa Rank

0

Information Server

Comments