Website review twelve.co
Twelve | A World Made from Air™
Generated on March 14 2026 00:24 AM
Old data? UPDATE !
The score is 57/100
SEO Content
Title
Twelve | A World Made from Air™
Length : 31
Perfect, your title contains between 10 and 70 characters.
Description
We transform CO2 into essential products.
Length : 41
Ideally, your meta description should contain between 70 and 160 characters (spaces included). Use this free tool to calculate text length.
Keywords
Very bad. We haven't found meta keywords on your page. Use this free online meta tags generator to create keywords.
Og Meta Properties
Good, your page take advantage of Og Properties.
| Property | Content |
|---|---|
| title | Twelve | A world made from air™ |
| description | A world made from air |
| image | https://static.wixstatic.com/media/ec0f98_9aa23b0656f54341b326f7eaed1dd9d8~mv2.png/v1/fill/w_2500,h_1394,al_c/ec0f98_9aa23b0656f54341b326f7eaed1dd9d8~mv2.png |
| image:width | 2500 |
| image:height | 1394 |
| url | https://www.twelve.co |
| site_name | Twelve | A World Made from Air |
| type | website |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 7 | 1 | 10 | 0 | 0 |
- [H1] a world made from air™
- [H2] We're the carbon transformation company, we turn CO2 into essential products.
- [H2] AirPlant™ Molecule Factory
- [H2] E-Jet® SAF Jet Fuel Made from Air
- [H2] Fuel for the Long Haul™
- [H2] CO2Made® Products Made from Air
- [H2] Products Made from Air, Not Oil
- [H2] Careers Be the Element of Change
- [H3] Stay in the loop, subscribe to our newsletter
- [H4] Optimist's Guide to the Planet
- [H4] Forbes
- [H4] BNEF Pioneers
- [H4] Time Inc. Best Inventions
- [H4] Edison Award
- [H4] FastCompany
- [H4] Wall Street Journal
- [H4] The Guardian
- [H4] CNN
- [H4] MIT Technology Review
Images
We found 28 images on this web page.
20 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.
Text/HTML Ratio
Ratio : 0%
This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.
Flash
Perfect, no Flash content has been detected on this page.
Iframe
Great, there are no Iframes detected on this page.
SEO Links
URL Rewrite
Good. Your links looks friendly!
Underscores in the URLs
Perfect! No underscores detected in your URLs.
In-page links
We found a total of 27 links including 1 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Optimist's Guide to the Planet | External | Passing Juice |
| Forbes | External | Passing Juice |
| BNEF Pioneers | External | Passing Juice |
| Time Inc. Best Inventions | External | Passing Juice |
| Edison Award | External | Passing Juice |
| FastCompany | External | Passing Juice |
| Wall Street Journal | External | Passing Juice |
| The Guardian | External | Passing Juice |
| CNN | External | Passing Juice |
| MIT Technology Review | External | Passing Juice |
| Home | Internal | Passing Juice |
| E-Jet® SAF | Internal | Passing Juice |
| eFuels | Internal | Passing Juice |
| CO2Made® | Internal | Passing Juice |
| AirPlant™ | Internal | Passing Juice |
| Carbon Transformation | Internal | Passing Juice |
| Catalyst Blog | Internal | Passing Juice |
| Newsletter | Internal | Passing Juice |
| External | Passing Juice | |
| YouTube | External | Passing Juice |
| External | Passing Juice | |
| About | Internal | Passing Juice |
| Careers | Internal | Passing Juice |
| Contact | Internal | Passing Juice |
| Terms of Service | Internal | Passing Juice |
| Privacy Policy | Internal | Passing Juice |
| Partnerships | Internal | Passing Juice |
SEO Keywords
Keywords Cloud
products from co2made more made saf air airplant learn fuel
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| from | 11 |  |
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| products | 9 | |
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| air | 8 | |
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| made | 7 | |
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| learn | 5 | |
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Usability
Url
Domain : twelve.co
Length : 9
Favicon
Great, your website has a favicon.
Printability
We could not find a Print-Friendly CSS.
Language
Good. Your declared language is en.
Dublin Core
This page does not take advantage of Dublin Core.
Document
Doctype
HTML 5
Encoding
Perfect. Your declared charset is UTF-8.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Warning! At least one email address has been found in the plain text. Use free antispam protector to hide email from spammers.
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Excellent, your website doesn't use nested tables. |
|
Too bad, your website is using inline styles. |
|
Great, your website has few CSS files. |
|
Too bad, your website has too many JS files (more than 6). |
|
Perfect, your website takes advantage of gzip. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
|
Flash content |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://www.twelve.co/sitemap.xml |
Robots.txt
https://twelve.co/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
We didn't detect an analytics tool installed on this website.
Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
PageSpeed Insights
Device
Categories
Free SEO Testing Tool
Free SEO Testing Tool is a free SEO tool which provides you content analysis of the website.