Certainteed.com - SEO Checker

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Overview of the SEO Check
Meta information
100% 
Page quality
81% 
Page structure
58% 
Link structure
92% 
Server
80% 
External factors
100% 
SEO Score
Response time
0.84 s
File size
163.90 kB
Words
846
Media files
44
Number of links
56 internal / 4 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Let's Build for Tomorrow. Today | CertainTeed
The length of the page title is perfect. (402 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
The length of the meta description is perfect. (867 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.certainteed.com/
There is a valid canonical link specified.
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
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
descriptionCertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
MobileOptimizedwidth
HandheldFriendlytrue
viewportwidth=device-width, initial-scale=1.0
google-site-verificationuZb_3mdhAFVVbO2lU1cHa5wdQXInO6sab9wgWwPIPYc
msapplication-TileColor#da532c
theme-color#ffffff
langen
og:imagehttps://www.certainteed.com/sites/drupalvm.dev/themes/certainteed/ct_bootstrap/images/CTOGImage1_1200x630.jpg
charsetutf-8

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Page quality

Content
(Critically important)
Words from the H1 heading are not used in the page content.
This page contains 846 words. That's ok.
32% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
The page contains a listing, which indicates a good text layout.
17 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 16.47 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
A viewport "width=device-width, initial-scale=1.0" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 17 tags for this page.
Image SEO
(Somewhat important)
7 images have no alt attribute. The content of alt attributes is used by search engines.
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
/themes/custom/certainteed/images/logo.svgLogo
...mes/custom/certainteed/images/logo-m.svgLogo
...eed-us-video-thumbnail.jpg?itok=oVMIU9Gohomepage thumbnail
...g?crop=yes&k=c&w=272&h=181&itok=SnGGK0koBuilding Insulation
...f?crop=yes&k=c&w=272&h=181&itok=YMxAfqqTLandmark Designer Roofing Shingles in Thunderstorm Gray - full view glamour photo house in blue vertical siding with white cross buck fence
...g?crop=yes&k=c&w=272&h=181&itok=HfqQObc3A modern office with a wooden ceiling.
...g?crop=yes&k=c&w=272&h=181&itok=jp3KAM2zMulti-product exterior on the USA Luge facility
...g?crop=yes&k=c&w=272&h=181&itok=ZgeEuB0kNo alt attribute provided
...g?crop=yes&k=c&w=272&h=181&itok=G-6Usi3xSymphony F Ceilings in a corporate office setting with sky scraper outside the window
...f?crop=yes&k=c&w=272&h=181&itok=wPMyCD__No alt attribute provided
...g?crop=yes&k=c&w=272&h=181&itok=tvLIQH6lMonogram Double 5 inch Dutchlap shown in Pacific Blue.
...f?crop=yes&k=c&w=272&h=181&itok=-_b_B_YBA Ranch style home with Cedar Impressions siding in Hearthstone.
...f?crop=yes&k=c&w=272&h=181&itok=fbJqRahRApplication of Membrain insulation
...g?crop=yes&k=c&w=272&h=181&itok=NO_fH9JdNo alt attribute provided
...?crop=yes&k=c&w=1472&h=828&itok=6Hd_4eoGA single family home with cutaway views into the house showing insulation in wood studs, drywall, GlasRoc tile backer, siding and roofing.
...f?crop=yes&k=c&w=320&h=213&itok=znv1ulfQMax Def Georgetown Gray Color Swatch
...f?crop=yes&k=c&w=320&h=213&itok=jDNaC1l7Siding Color Swatch
...g?crop=yes&k=c&w=320&h=213&itok=a85SZvr0Canadian finishing products
...k?crop=yes&k=c&w=320&h=213&itok=u8eLbrSIGlasRoc tilebacker
...g?crop=yes&k=c&w=320&h=213&itok=rC6kYw4Kinsulpure-product-family.jpg
...tpvvi/web/landmarkpro-mdcobl-B13-dml.tifLandmark PRO Designer Shingles in Max Def Coastal Blue - close up of rooftop and ridge vent, glamour house featuring blue siding and white scallop shingles
...rcasing-cowh-CID7-rough-sabr-install.tifNo alt attribute provided
...d_WORKSTYLE_Commercial_Drywall_01572.tifCommercial Gypsum Workstyle Photography Interior Setting
...ilings-wood-panelized-linear-gallery.jpgA staircase with two people walking and Wood Panelized Linear ceiling.
...lings-symphony-m-70-rx-80-rx-gallery.tifA hospital waiting room with a fireplace and tv.
...eb/black-diamond-base-sheet-ctr (90).jpgBlack Diamond Base Sheet roof installation project
...ulhollandSolsticeShingle_Studio66_11.tifMulholand Solstice Solar Panel on a house top view from side
...web/GlasRoc-sheathing-rendering-US-2.pngNo alt attribute provided
...insulpure-application-wood-studs (9).tifNo alt attribute provided
...u7fsl/web/softtouch-ductwrap-install.jpgSoftTouch duct wrap installation
...t/xeclibottq/web/OPA_CT_Mystic_Black.jpgOne precision assemblies pilot home in black, located in Mystic Connecticut
...g?crop=yes&k=c&w=458&h=330&itok=5EoQ2IZ5Worker applying shingles with nail gun on roof Weather Element storm preparedness
...f?crop=yes&k=c&w=458&h=344&itok=BFjTK1QxThe exterior of a home with Monogram siding in Colonial White.
...g?crop=yes&k=c&w=458&h=344&itok=vS7FEmIlWorkers boarding up window and siding
...g?crop=yes&k=c&w=458&h=330&itok=Us9itlRKRoofing storm damage trees on house Weather Element images showing storm damage and safety issues
...f?crop=yes&k=c&w=458&h=344&itok=f3BsT8vTA rendering of Integrity Roof System roof runner on a house.
...f?crop=yes&k=c&w=458&h=344&itok=uZVFcGoFShingles with NailTrak detail in partial shade- product image during installation
...g?crop=yes&k=c&w=458&h=330&itok=E5sAhXxtAn exploded view with Integrity Roof System with Landmark Pro Shingles
...f?crop=yes&k=c&w=458&h=344&itok=uZVFcGoFShingles with NailTrak detail in partial shade- product image during installation
...g?crop=yes&k=c&w=458&h=344&itok=54H4Vj-FMulti-product exterior on the USA Luge facility
...g?crop=yes&k=c&w=458&h=330&itok=Ahc8RXq6A modern office with a wooden ceiling.
...g?crop=yes&k=c&w=458&h=344&itok=5UFxjsulNo alt attribute provided
...g?crop=yes&k=c&w=458&h=344&itok=0aoD1CyeSymphony F Ceilings in a corporate office setting with sky scraper outside the window
Video URLWidthHeight
.../2024-05/CT_HomepageVideo_US-cutdown.mp4640480

Page structure

H1 heading
(Critically important)
Let’s Build for Tomorrow. Today.
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 50 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H1 Let’s Build for Tomorrow. Today.
H2 Utility Navigation
H2 Mega Menu
H2 Solutions
H2 Inside. Outside. Integrated, Outstanding Options.
H2 Residential. Commercial. Professional.
H2 Why CertainTeed
H2 0+
H2 0+ Duplicate text
H2 0+ Duplicate text
H2 0+ Duplicate text
H2 Recommended for You
H3 Ready to Start Your Next Project? We can help!
H5 Moisture Management & Water Resistance
H5 Home Style & Architectural Design
H5 Integrated Ceiling Solutions
H5 All-Weather Exterior Solutions
H5 Offsite Construction
H5 Acoustical Performance
H5 Home Energy Efficiency
H5 Low Carbon Construction
H5 Circular Economy
H5 Indoor Air Quality
H5 Fire Resistance
H5 years in the building materials industry
H5 products in our portfolio
H5 MW of renewable power contracted
H5 manufacturing locations in the US
H5 I am a Homeowner
H5 I am a Contractor
H5 I am a Builder
H5 I am an Architect
H6 Residential Roofing
H6 Siding & Trim
H6 Drywall & Finishing
H6 GlasRoc Tile Backer
H6 Building Insulation
H6 Select your role
H6 How to Choose a Roofing Contractor
H6 How to Clean Vinyl Siding
H6 How to Prepare Your Home for a Hurricane
H6 Being Successful as a Storm Contractor
H6 What are the Elements of the CertainTeed Integrity Roof System?
H6 CertainTeed Roofing Technologies
H6 The Integrity Roof System®
H6 Roofing Technologies
H6 All-Weather Exterior Solutions Duplicate text
H6 Integrated Ceilings Solutions
H6 Utah Jazz Practice Facility
H6 Acoustical Performance Duplicate text
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 4 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.certainteed.com/Anchor Skip to main content
https://www.certainteed.com/Subdomain United States
https://www.certainteed.com/Subdomain United States English (EN)
https://es.certainteed.com/External Subdomain United States Spanish (ES)
https://www.certainteed.ca/External Subdomain Canada
https://www.certainteed.ca/External Subdomain Canada English (EN)
https://fr.certainteed.ca/External Subdomain Canada French (FR)
/where-to-buyWhere To Buy
/find-a-proFind A Pro
/find-a-repFind A Rep
https://www.certainteed.com/IMG-ALT Logo
/inspiration/how-tos/moisture-...Moisture Management & Water Resistance
/inspiration/how-tos/home-styl...Home Style & Architectural Design
/inspiration/how-tos/integrate...Integrated Ceiling Solutions
/inspiration/how-tos/all-weath...All-Weather Exterior Solutions
/one-precision-assemblies_oldOffsite Construction
/inspiration/how-tos/acoustica...Acoustical Performance
/inspiration/how-tos/home-ener...Home Energy Efficiency
/inspiration/how-tos/low-carbo...Low Carbon Construction
/inspiration/how-tos/circular-...Circular Economy
/inspiration/case-studies/impr...Indoor Air Quality
/inspiration/how-tos/fire-resi...Fire Resistance
/products/residential-roofing-...Subdomain Learn More
/products/siding-productsSubdomain Text duplicate Learn More
/products/drywall-products-sys...Subdomain Text duplicate Learn More
/products/drywall-products/gla...Subdomain Text duplicate Learn More
/products/building-insulation-...Subdomain Text duplicate Learn More
/products/residential-roofing-...Residential Roofing
/products/siding-productsSiding & Trim
/products/drywall-products-sys...Drywall
/products/ceiling-wall-systems...Specialty Ceilings
/products/ceiling-wall-systems...Ceilings & Walls
/products/commercial-roofing-p...Commercial Roofing
/products/solar-productsSolar
/products/drywall-products/gla...Sheathing
/products/building-insulation-...Building Insulation
/products/technical-insulation...Technical Insulation
/one-precision-assemblies_oldText duplicate Offsite Construction
/about-usAbout CertainTeed
/inspirationView More
/inspiration/how-tos/how-choos...How to Choose a Roofing Contractor
/inspiration/how-tos/how-choos...Learn more
/inspiration/how-tos/how-clean...How to Clean Vinyl Siding
/inspiration/how-tos/how-prepa...How to Prepare Your Home for a Hurricane
/inspiration/how-tos/being-suc...Being Successful as a Storm Contractor
/inspiration/how-tos/being-suc...Text duplicate Learn more
/inspiration/projects/what-are...What are the Elements of the CertainTeed Integrity Roof System?
/roofing-technologiesCertainTeed Roofing Technologies
/inspiration/projects/what-are...The Integrity Roof System®
/inspiration/projects/what-are...Text duplicate Learn more
/roofing-technologiesRoofing Technologies
/inspiration/how-tos/all-weath...Text duplicate All-Weather Exterior Solutions
/inspiration/how-tos/integrate...Integrated Ceilings Solutions
/inspiration/how-tos/integrate...Text duplicate Learn more
/inspiration/case-studies/case...Utah Jazz Practice Facility
/find-a-proText duplicate Find A Pro
/privacy-policy/Privacy Policy
/legal-terms-useTerms of Use
/california-privacy-policy/California Privacy Rights Statement
/ontario-aoda-compliance-planOntario AODA Compliance Plan

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.certainteed.com/"
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 0.84 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 (164 kB).

HTTP Response Header

NameValue
servernginx
dateThu, 07 Aug 2025 07:38:18 GMT
content-typetext/html; charset=UTF-8
cache-controlmax-age=16588800, public
content-languageen
x-content-type-optionsnosniff
x-frame-optionsSAMEORIGIN
expiresSun, 19 Nov 1978 05:00:00 GMT
varyX-Geo-Country,X-Forwarded-Proto,Accept-Encoding
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