airandspace.si.edu | Website SEO Review

Response time

0.04 s

File size

116.30 kB

Words

587

Media files

13

Number of links

55 internal / 18 external

Meta specifications 80% achieved

Title

(Critically important)

Homepage | National Air and Space Museum

The length of the page title is perfect. (403 pixels out of 580 max pixel length)

There are no duplicate words in the title

Meta Title

Meta description

(Critically important)

The Smithsonian's National Air and Space Museum maintains the world's largest and most significant collection of aviation and space artifacts, encompassing all aspects of human flight. It operates two landmark facilities that, together, welcome more than eight million visitors a year.

The meta description is too long: 1736 pixels from max. 1000 pixels. Optimize description

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

https://airandspace.si.edu/

There is a valid canonical link specified.

Canonical Tag

Language

(Somewhat important)

Language detected in text: en

Language defined in HTML: en

Server location: United States of America

The following language is defined by HTML: en

Declaring language in HTML

Alternate/Hreflang Links

(Somewhat important)

The specified alternate links have no errors.

Hreflang

Other meta tags

(Somewhat important)

There is no rel next meta tag on this page.

There is no rel prev meta tag on this page.

Meta Tags

Domain

(Somewhat important)

The domain is no subdomain.

The domain length is good.

The domain does not contain non-latin characters.

Domain for SEO

Page URL

(Somewhat important)

No parameters were found in the URL.

No session ID was found in the URL.

The URL does not have too many subdirectories.

SEO-friendly URLs

Charset encoding

(Somewhat important)

The charset encoding (UTF-8) is set correctly.

Character Encoding

Doctype

(Nice to have)

The doctype HTML 5 is set correctly.

The doctype is placed at first in the HTML code.

HTML Doctype

Favicon

(Nice to have)

The favicon is linked correctly.

Favicon

Meta tags

Name	Value
description	The Smithsonian's National Air and Space Museum maintains the world's largest and most significant collection of aviation and space artifacts, encompassing all aspects of human flight. It operates two landmark facilities that, together, welcome more than eight million visitors a year.
Generator	Drupal 10 (https://www.drupal.org)
MobileOptimized	width
HandheldFriendly	true
viewport	width=device-width, initial-scale=1.0
bundle	Homepage
cttype	homepage
google-site-verification	A6EYCksErPTzKSXCkFZy9LCkBSqUzMHo017sw6REZeQ
nasm-2021	Empty
lang	en
twitter:card	summary_large_image
twitter:title	Homepage
twitter:site	@airandspace
twitter:description	The Smithsonian's National Air and Space Museum maintains the world's largest and most significant collection of aviation and space artifacts, encompassing all aspects of human flight.
twitter:image	https://airandspace.si.edu/sites/default/files/2022-08/nasm_planet_large.png
og:description	The Smithsonian's National Air and Space Museum maintains the world's largest and most significant collection of aviation and space artifacts, encompassing all aspects of human flight. It operates two landmark facilities that, together, welcome more than
og:image	https://airandspace.si.edu/sites/default/files/2022-08/nasm_planet_large.png
og:image:secure_url	https://airandspace.si.edu/sites/default/files/2022-08/nasm_planet_large.png
charset	utf-8

Page quality 73% achieved

Content

(Critically important)

Some words from the page title are not used within the pages content

This page contains 587 words. That's ok.

29.8% of the text are stop words.

Words from the H1 heading are used in the page content.

The page contains a listing, which indicates a good text layout.

4 paragraphs were found on this page.

No placeholders texts or images were found.

There are no duplicates on the site.

The average number of words per sentence of 15.38 words is good.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

No Apple touch icon is specified.

A viewport "width=device-width, initial-scale=1.0" is provided.

Mobile Optimization

Bold and strong tags

(Somewhat important)

The usage of strong and bold tags is perfect. We recommend the use of up to 12 tags for this page.

Strong and Bold Tags

Image SEO

(Somewhat important)

6 images have no alt attribute. The content of alt attributes is used by search engines.

Image SEO

There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.

Social Sharing

Additional markup

(Nice to have)

No additional page markup was found.

HTTPS

(Somewhat important)

This website uses HTTPS to protect privacy and integrity of the exchanged data.

All included files are also transferred via HTTPS.

HTTPS

Media list

URL	Alt attribute	Title
...672-2007h_2.jpg?h=27466d3d&itok=sM-wanP8	View of the Steven F. Udvar-Hazy Center tower at sunset
...001-000013h.jpg?h=0c4a277e&itok=BopTDawT	Apollo 11: Buzz Aldrin on the Moon
...-s-082~orig.jpg?h=ad0aac6e&itok=COh2O3mN	space shuttle launch
.../4067_640_1.jpg?h=7271a156&itok=12iSGpbv	Women in Aviation and Space Family Day
...11590-2010h.jpg?h=2cf60e4d&itok=WSmOs9rw	Bob Hoover Gives an Air Show Performance
...M2022-05013.jpg?h=48623d0a&itok=yOphKrK0	A conical brown command module seemingly floats in front of a photograph of the moon's surface and the sun behind it.
...b8df261ac_k.jpg?h=652cf5c2&itok=rllJFaeb	The Space Shuttle is visible in the background as masked visitors practice social distancing.
...id=NASM-NASM2022-00100A-000001&max_w=500	No alt attribute provided
...SM-A19700102000-NASM2016-04272&max_w=500	No alt attribute provided
...Service?id=NASM-NASM2015-05848&max_w=500	No alt attribute provided
...Service?id=NASM-NASM2013-02525&max_w=500	No alt attribute provided
...ryService?id=NASM-SI-2006-2744&max_w=500	No alt attribute provided
...?id=NASM-NASM2023-05055-000001&max_w=500	No alt attribute provided

Page structure 66% achieved

H1 heading

(Critically important)

Take your curiosity to new heights

Too many H1 headings

H1-H6 headings

Headings

(Important)

Some headings occur twice on the page.

H1-H6 headings

Heading structure

Heading level	Content
H1	Take your curiosity to new heights
H1	Take your curiosity to new heights Duplicate text
H2	National Air and Space Museum
H2	Steven F. Udvar-Hazy Center
H2	From the collection
H2	Error message
H3	Visit
H3	One museum, two locations
H3	What's On
H3	At the museum and online
H3	Explore
H3	Dive deep into air and space
H3	Learn
H3	For teachers and parents
H3	Give
H3	Be the spark
H3	Featured deep dives
H3	1903 Wright Flyer
H3	Apollo 11 Command Module Columbia
H3	SpaceShipOne
H3	Space Shuttle Discovery
H3	Lockheed SR-71 Blackbird
H3	Grumman F-14D(R) Tomcat
H4	Thank you. You have successfully signed up for our newsletter.
H4	Sorry, there was a problem. Please ensure your details are valid and try again.

Link structure 91% achieved

Internal links

(Important)

Some anchor texts are used more than once.

1 links don't have an anchor text.

The number of internal links is ok.

None of the anchor texts is too long.

All internal links are not using dynamic parameters.

Internal Linking

External links

(Nice to have)

There are 18 external links on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
https://airandspace.si.edu/	Anchor	Skip to main content
https://airandspace.si.edu/		No Text
https://www.si.edu/	New window External Subdomain	No Text
https://www.etix.com/ticket/e/...	External Subdomain	Reserve Passes
https://support.si.edu/site/Do...	External Subdomain	Donate Now
https://airandspace.si.edu/visit		Visit
https://airandspace.si.edu/visit	Text duplicate	Visit
/visit/museum-dc		National Air and Space Museum in DC
/visit/udvar-hazy-center		Udvar-Hazy Center in VA
/learn/plan-field-trip		Plan a field trip
/visit/group-visit		Plan a group visit
/whats-on		What's On
/whats-on	Text duplicate	What's On
/whats-on/events		Events
/whats-on/exhibitions		Exhibitions
/whats-on/imax-theaters-and-pl...		IMAX and Planetarium
/explore		Explore
/explore	Text duplicate	Explore
/explore/stories		Stories
/explore/topics		Topics
/explore/collections		Collections
/explore/on-demand		On demand
/explore/researchers		For researchers
https://airandspace.si.edu/learn		Learn
https://airandspace.si.edu/learn	Text duplicate	Learn
/learn/programs		Programs
/learn/learning-resources		Learning resources
/learn/field-trip	Text duplicate	Plan a field trip
/learn/professional-development		Professional development
/learn/monthly-theme		Education monthly theme
/support		Give
/support	Text duplicate	Give
https://support.si.edu/site/Do...	External Subdomain	Donate
/support/membership		Become a member
/support/wall-honor		Wall of Honor
/support/ways-give		Ways to give
/support/host-event		Host an Event
/visit/museum-dc		National Air and Space Museum
/visit/museum-dc		Plan Your Visit
https://s.si.edu/3zRlGpq	External Subdomain Text duplicate	Reserve Passes
/visit/udvar-hazy-center		Steven F. Udvar-Hazy Center
/visit/udvar-hazy-center	Text duplicate	Plan Your Visit
/explore/topics/astronomy/moon...		All About the Moon
/learn/monthly-theme		Air and Space in Comics
/explore/stories/people-you-sh...		People You Should Know
/explore/stories/our-solar-system		Our Solar System
/collection-objects/1903-wrigh...		1903 Wright Flyer
/collection-objects/command-mo...		Apollo 11 Command Module Columbia
/collection-objects/spaceshipo...		SpaceShipOne
/collection-objects/orbiter-sp...		Space Shuttle Discovery
/collection-objects/lockheed-s...		Lockheed SR-71 Blackbird
/collection-objects/grumman-f-...		Grumman F-14D(R) Tomcat
https://airandspace.si.edu/	New window	No Text
https://airandspace.si.edu/about		About
/newsroom		Newsroom
/support		Support
/get-involved		Get Involved
/contact		Contact
/support/host-event	Text duplicate	Host an Event
https://www.facebook.com/airan...	New window External Subdomain	No Text
https://twitter.com/airandspace	New window External	No Text
https://www.instagram.com/aira...	New window External Subdomain	No Text
https://www.youtube.com/user/a...	New window External Subdomain	No Text
https://www.flickr.com/photos/...	New window External Subdomain	No Text
/connect	New window Subdomain	No Text
https://maps.google.com/?cid=1...	External Subdomain	6th St. and Independence Ave SW
https://maps.google.com/?cid=1...	External Subdomain	Washington, DC 20560
https://www.etix.com/ticket/e/...	External Subdomain	Free Timed-Entry Passes Required
https://goo.gl/maps/9MCYQS8Vgg...	External	14390 Air and Space Museum Parkway
https://goo.gl/maps/9MCYQS8Vgg...	External	Chantilly, VA 20151
https://www.si.edu/	New window External Subdomain	No Text
https://www.si.edu/privacy/	New window External Subdomain	Privacy
https://www.si.edu/termsofuse/	New window External Subdomain	Terms of Use

Server configuration 100% achieved

HTTP redirects

(Critically important)

This page redirects to "https://airandspace.si.edu/"

WWW Redirect

HTTP header

(Important)

No X-Powered HTTP header is sent.

This page uses GZip for compressed data transmission.

HTTP headers

Performance

(Somewhat important)

The page response time is excellent with 0.04 seconds.

The file size of the HTML document is fine (116 kB).

Page Speed

HTTP Response Header

Name	Value
cache-control	max-age=3600, public
content-encoding	gzip
content-language	en
content-type	text/html; charset=UTF-8
etag	W/"1729498350"
expires	Sun, 19 Nov 1978 05:00:00 GMT
last-modified	Mon, 21 Oct 2024 08:12:30 GMT
server	nginx
strict-transport-security	max-age=300
x-content-type-options	nosniff
x-drupal-cache	HIT
x-drupal-dynamic-cache	MISS
x-generator	Drupal 10 (https://www.drupal.org)
x-pantheon-styx-hostname	styx-fe2-a-5466c7c5b8-6q4ll
x-styx-req-id	a80e32ce-8f88-11ef-9bc4-7e5f30ed31b8
age	2081
accept-ranges	bytes
via	1.1 varnish, 1.1 varnish, 1.1 varnish, 1.1 varnish
x-frame-options	SAMEORIGIN
date	Mon, 21 Oct 2024 11:19:38 GMT
x-served-by	cache-chi-klot8100087-CHI, cache-fra-etou8220037-FRA, cache-fra-eddf8230104-FRA, cache-fra-eddf8230104-FRA
x-cache	HIT, HIT, MISS, MISS
x-cache-hits	7, 0, 0, 0
x-timer	S1729509579.533462,VS0,VE12
vary	Accept-Encoding, Cookie, Cookie, Cookie
content-length	32583
statuscode	200
http_version	HTTP/2

External factors 100% achieved

Backlinks

(Critically important)

This page is referenced by wikipedia.

This website has excellent links from other websites.

This page has backlinks from 14,646 referring domains.

This page has 1,310,657 backlinks.

This page has backlinks from 9,571 different ip addresses.

Backlinks

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

# Additional Paths
User-agent: *
Disallow: /search?*
Disallow: /collections?*
Disallow: /collections/search?*

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airandspace.si.edu

Homepage | National Air and Space Museum

The Smithsonian's National Air and Space Museum maintains the world's largest and most significant collection of aviation and space artifacts, encompassing all aspects of human flight. It operates two landmark facilities that, together, welcome more than eight million visitors a year.

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

Keyword	Result	Recheck
Space	79%	Check
Air	79%	Check
Air Space	79%	Check
Space Museum	72%	Check
National Air	72%	Check
Museum	65%	Check
space artifacts	64%	Check
new	54%	Check
heights	54%	Check
New Heights	54%	Check
curiosity	54%	Check
Visit	52%	Check
two	50%	Check
collection	50%	Check
aviation	48%	Check
world	46%	Check
artifacts	46%	Check
significant	46%	Check
main	46%	Check
deep	43%	Check
One	43%	Check
Dive	43%	Check
Udvar-Hazy	40%	Check
Center	40%	Check
Steven	40%	Check

Show more keywords and terms

Airandspace.si.edu - SEO Checker

Task list of SEO Improvements 5 Tasks

Meta specifications 80% achieved

(Critically important)

(Critically important)

(Critically important)

(Important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

Meta tags

Test up to 1.000 webpages of airandspace.si.edu with our free plan!

Page quality 73% achieved

(Critically important)

(Critically important)

(Somewhat important)

(Somewhat important)

(Somewhat important)

(Nice to have)

(Nice to have)

(Somewhat important)

Media list

Page structure 66% achieved

(Critically important)

(Important)

Heading structure

Link structure 91% achieved

(Important)

(Nice to have)

Found links on this page

Server configuration 100% achieved

(Critically important)

(Important)

(Somewhat important)

HTTP Response Header

External factors 100% achieved

(Critically important)

Links from Wikipedia

Robots.txt

Similar sites

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Most important keywords

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