Bottle.org - SEO Checker

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Overview of the SEO Check
Meta information
65% 
Page quality
46% 
Page structure
100% 
Link structure
98% 
Server
77% 
External factors
100% 
SEO Score
Response time
0.89 s
File size
16.50 kB
Words
143
Media files
15
Number of links
17 internal / 11 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Home | Bottle
The page title is too short. (121 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en
Server location: Canada
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
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.
Domain
(Somewhat important)
The domain is no subdomain.
The domain length is good.
The domain does not contain non-latin characters.
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.
Charset encoding
(Somewhat important)
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
theme-color#007934
langen
charsetutf-8

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Page quality

Content
(Critically important)
There are only 143 words on this page. Use at least 250 words to provide useful information.
Words from the H1 heading are not used in the page content.
Only 2 paragraph/s was/were found on this page.
32.2% of the text are stop words.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 16 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1, shrink-to-fit=no" is provided.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (7). We recommend using a maximum of 6 tags for this page.
The following tag is repeated too often: t
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
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.

Media list

URLAlt attributeTitle
...icons/bottle-logo-4.png?sfvrsn=33508b5_1bottle
...ttle-logo-home-450.png?sfvrsn=1ac88fbd_1bottle logo with the tagline 'changing the way we recycle' U.S.Department of Energy
...mg/generic-content/discarded-plastic.pngdiscared plastic
.../bottle-hp-graphic.png?sfvrsn=b37b4bf0_0plastic waste
...bum/logos/logo-anl.png?sfvrsn=e3b1036f_3Argonne National Laboratory
...um/logos/logo-nrel.png?sfvrsn=c8d66658_3NREL
...um/logos/logo-ornl.png?sfvrsn=40b4c772_3Oak Ridge National Laboratory
...um/logos/logo-slac.png?sfvrsn=994c310a_3SLAC National Accelerator Laboratory
...lbum/logos/logo-csu.png?sfvrsn=b7ee43d_3Colorado State University
...bum/logos/logo-mit.png?sfvrsn=875853bd_3Massachusetts Institute of Technology
...western-university.png?sfvrsn=da335384_3Northwestern University
...9c8297a3e084b70bda.png?sfvrsn=3cde2eeb_0Recinto Universitario de Mayagüez - Universidad de Puerto Rico
...go-u-of-wi-madison.png?sfvrsn=2515b848_0University of Wisconson - Madison logo
...mmto-blue-seal-hor.svg?sfvrsn=fbf9a8fa_2Advanced Materials & Manufacturing Technologies Office
...beto-blue-seal-hor.svg?sfvrsn=94db7a38_2Bioenergy Technologies Office

Page structure

H1 heading
(Critically important)
5.7 billion metric tons of discarded plastic have never been recycled
The H1 heading is perfect.
Headings
(Important)
The heading structure is perfect.

Heading structure

Heading levelContent
H1 5.7 billion metric tons of discarded plastic have never been recycled
H2 So, we're changing the way we recycle
H2 Join us in transforming plastic pollution
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 11 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.bottle.org/Anchor Skip to main content
https://www.bottle.org/Subdomain IMG-ALT bottle
https://www.bottle.org/aboutAbout
/about/leadership-teamLeadership Team
/about/technical-advisory-boardTechnical Advisory Board
https://www.bottle.org/partnersPartners
/join-bottle-consortiumJoin Us
https://www.bottle.org/researchResearch
/research/deconstructionDeconstruction
/research/building-blocksBuilding Blocks
/research/redesign-modelingRedesign and Modeling
/research/analysisAnalysis
/research/characterizationCharacterization
/publicationsPublications
https://www.bottle.org/newsNews
https://www.bottle.org/contact-usContact Us
/join-bottle-consortiumText duplicate Join Us
https://www.anl.gov/External Subdomain IMG-ALT Argonne National Laboratory
https://www.nrel.gov/External Subdomain IMG-ALT NREL
https://www.ornl.gov/External Subdomain IMG-ALT Oak Ridge National Laboratory
https://www6.slac.stanford.edu/External Subdomain IMG-ALT SLAC National Accelerator Laboratory
https://www.colostate.edu/External Subdomain IMG-ALT Colorado State University
https://www.mit.edu/External Subdomain IMG-ALT Massachusetts Institute of Technology
https://www.northwestern.edu/External Subdomain IMG-ALT Northwestern University
https://www.uprm.edu/External Subdomain IMG-ALT Recinto Universitario de Mayagüez - Universidad de Puerto Rico
https://www.wisc.edu/External Subdomain IMG-ALT University of Wisconson - Madison logo
https://www.energy.gov/eere/am...External Subdomain IMG-ALT Advanced Materials & Manufacturing Technologies Office
https://www.energy.gov/eere/bi...External Subdomain IMG-ALT Bioenergy Technologies Office

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.bottle.org/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.89 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
The file size of the HTML document is fine (17 kB).

HTTP Response Header

NameValue
dateThu, 31 Jul 2025 18:04:02 GMT
content-typetext/html; charset=utf-8
cf-ray967f0412f81c048c-CDG
cf-cache-statusHIT
access-control-allow-originhttps://search3.nrel.gov,https://www.energy.gov
age25172
cache-controlpublic, max-age=0, s-maxage=43200
expiresThu, 31 Jul 2025 11:04:30 GMT
last-modifiedWed, 30 Jul 2025 20:25:51 GMT
strict-transport-securitymax-age=31536000; preload
varyAccept-Encoding
access-control-expose-headersRequest-Context
content-security-policydefault-src 'self'; script-src 'self' *.googleapis.com *.gstatic.com www.google.com apis.google.com *.google-analytics.com connect.facebook.net ajax.aspnetcdn.com platform.twitter.com https://syndication.twitter.com/ https://s.ytimg.com https://publish.twitter.com *.twimg.com platform.linkedin.com http://platform.stumbleupon.com/1/widgets.js https://*.googletagmanager.com cdnjs.cloudflare.com *.youtube.com kit.fontawesome.com *.addthis.com *.moatads.com *.addthisedge.com s3.amazonaws.com *.list-manage.com *.highcharts.com code.jquery.com maxcdn.bootstrapcdn.com *.telerik.com cdn.jsdelivr.net *.3playmedia.com www.google-analytics.com *.sharethis.com *.crazyegg.com *.mapbox.com *.clarity.ms *.datatables.net datatables.net *.digitalgov.gov *.powerbigov.us *.nrel.gov www.energy.gov *.accuweather.com www.buzzsprout.com https://public.tableau.com app.everviz.com vizgen.openei.org https://cdn.insight.sitefinity.com https://dec.azureedge.net https://player.vimeo.com/api/player.js https://www.youtube.com/iframe_api 'unsafe-inline' 'unsafe-eval'; style-src 'self' *.googleapis.com *.gstatic.com kendo.cdn.telerik.com www.google.com platform.twitter.com/css/ *.twimg.com cdnjs.cloudflare.com *.mailchimp.com *.bootstrapcdn.com cdn.jsdelivr.net *.sharethis.com *.crazyegg.com *.mapbox.com *.datatables.net datatables.net *.powerbigov.us *.nrel.gov *.accuweather.com app.everviz.com vizgen.openei.org https://cdn.insight.sitefinity.com https://dec.azureedge.net 'unsafe-inline'; img-src 'self' *.gstatic.com *.googleapis.com platform.tumblr.com web.facebook.com www.facebook.com www.redditstatic.com www.linkedin.com i.ytimg.com https://syndication.twitter.com https://static.licdn.com/scds/common/u/images/apps/connect/sprites/sprite_connect_v14.png pbs.twimg.com platform.twitter.com/css/ *.twimg.com data: blob: https://*.googletagmanager.com *.google-analytics.com thesource2.nrel.gov *.datatables.net *.sharethis.com *.mapbox.com *.clarity.ms *.bing.com video.stratus.nrel.gov *.nrel.gov *.accuweather.com https://public.tableau.com nrel-aut.sitefinity.cloud https://cdn.insight.sitefinity.com https://dec.azureedge.net; font-src 'self' fonts.gstatic.com kendo.cdn.telerik.com data: *.fontawesome.com *.bootstrapcdn.com *.cloudflare.com *.powerbigov.us *.nrel.gov; frame-src 'self' https://platform.twitter.com/ https://syndication.twitter.com/ https://www.youtube.com/ https://www.youtube-nocookie.com https://player.vimeo.com/ https://w.soundcloud.com/ apis.google.com accounts.google.com staticxx.facebook.com www.facebook.com web.facebook.com badge.stumbleupon.com *.youtube.com *.twitter.com s7.addthis.com calendar.google.com nrel.force.com nrel.my.site.com *.sociablekit.com *.powerbigov.us video.stratus.nrel.gov nrel.carto.com https://maps.google.com www.google.com clausa.app.carto.com www.buzzsprout.com *.nrel.gov nrel.github.io public.tableau.com vizgen.openei.org; connect-src 'self' data: accounts.google.com *.google-analytics.com *.gstatic.com https://*.googletagmanager.com https://*.googleapis.com/ *.fontawesome.com *.addthis.com *.3playmedia.com analytics.google.com *.crazyegg.com *.sharethis.com *.mapbox.com *.clarity.ms *.nrel.gov www.energy.gov *.highcharts.com https://*.insight.sitefinity.com https://*.dec.sitefinity.com; media-src 'self' data: blob: video.stratus.nrel.gov *.nrel.gov; child-src 'self' blob:
referrer-policyno-referrer-when-downgrade
request-contextappId=cid-v1:ae1fc00f-b6d5-45d6-aefb-dc9596919969
sf-cache-key0rGmAZYp7ugDRKrQn7bzTCyOp63fPBdDcLA3RVvtO5Q1
sf-cache-statusHIT
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
servercloudflare
content-encodinggzip
alt-svch3=":443"; ma=86400
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 69 referring domains.
This page has 149 backlinks.
This page has backlinks from 67 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Allow:

Sitemap: https://www.nrel.gov/sitemap/sitemap-index.xml

Similar sites

Search preview

www.bottle.org
Home | Bottle

Most important keywords

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

KeywordResultRecheck
BOTTLE66%Check
plastic58%Check
recycle56%Check
discarded52%Check
billion50%Check
metric50%Check
recycled50%Check
plastic pollution50%Check
changing40%Check
way40%Check
Show more keywords and terms

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