Sigmaphoto.com - SEO Checker

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Overview of the SEO Check
Meta information
80% 
Page quality
65% 
Page structure
64% 
Link structure
52% 
Server
70% 
External factors
100% 
SEO Score
Response time
0.85 s
File size
695.80 kB
Words
772
Media files
33
Number of links
43 internal / 52 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
SIGMA Corporation of America | SIGMA Corporation of America
There are word repetitions in the page title.
The length of the page title is perfect. (568 pixels out of 580 max pixel length)
Meta description
(Critically important)
Sigma Corporation of America is a subsidiary of the Sigma Corporation, a Japanese based family owned manufacturer of DSLR cameras, camera lenses and camera accessories. Founded in 1961, Sigma Corporation prides itself on high quality and innovative photographic equipment
The meta description is too long: 1746 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://www.sigmaphoto.com/
There is a valid canonical link 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
titleSIGMA Corporation of America | SIGMA Corporation of America
descriptionSigma Corporation of America is a subsidiary of the Sigma Corporation, a Japanese based family owned manufacturer of DSLR cameras, camera lenses and camera accessories. Founded in 1961, Sigma Corporation prides itself on high quality and innovative photographic equipment
keywordsSIGMA Corporation of America
robotsINDEX,FOLLOW
viewportwidth=device-width, initial-scale=1
format-detectiontelephone=no
p:domain_verifyP18S6D0kJ5izpsYGWYKehFbcGYDkCHYw
langen
og:typewebsite
og:titleSIGMA Corporation of America | SIGMA Corporation of America
og:descriptionSigma Corporation of America is a subsidiary of the Sigma Corporation, a Japanese based family owned manufacturer of DSLR cameras, camera lenses and camera accessories. Founded in 1961, Sigma Corporation prides itself on high quality and innovative photographic equipment
og:urlhttps://www.sigmaphoto.com/
og:localeen_US
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 772 words. That's ok.
31.2% 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.
9 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 16.3 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
The file size of the HTML document is very large (695.8 kB).
A viewport "width=device-width, initial-scale=1" is provided.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 15 tags for this page.
Image SEO
(Somewhat important)
22 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
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
...merce121/sigma2024/en_US/images/logo.svgSIGMA Corporation of AmericaSIGMA Corporation of America
...e121/sigma2024/en_US/images/loader-1.gifLoading...
/media/wysiwyg/hero_img.pngNo alt attribute provided
/media/wysiwyg/hero_img.pngNo alt attribute provided
...cad1584-84ac-44ad-895a-e7ffebeec79c.jpegNo alt attribute provided
...cad1584-84ac-44ad-895a-e7ffebeec79c.jpegNo alt attribute provided
...a24eaa4dc5ab5500/p/r/product_img01_3.png17-40mm F1.8 DC | Art
...dc5ab5500/p/r/product_img01_sku598_2.png300-600mm F4 DG OS | S
...dc5ab5500/p/r/product_img01_sku887_2.png16-300mm F3.5-6.7 DC OS | C
...content/uploads/2025/02/ss_1a-scaled.jpgSølve Sundsbø
....com/wp-content/uploads/2025/02/jh_1.jpgJulia Hetta
...Home_Page_New_Products_17-40mm_2x_1_.jpgNo alt attribute provided
...me_Page_New_Products_17-40mm_2x_1__1.jpgNo alt attribute provided
..._Home_Page_New_Products_300-600mm_2x.jpgNo alt attribute provided
...ome_Page_New_Products_300-600mm_2x_1.jpgNo alt attribute provided
...odImageProductListingSmall_2160x2700.jpgNo alt attribute provided
/media/wysiwyg/2x_PW_Graphic_5_2.jpgNo alt attribute provided
/media/wysiwyg/homepage/Media.pngNo alt attribute provided
/media/wysiwyg/homepage/Media.pngNo alt attribute provided
...iwyg/Home_Page_CINE_AIZU_PRIMES_Tout.pngNo alt attribute provided
...iwyg/Home_Page_CINE_AIZU_PRIMES_Tout.pngNo alt attribute provided
/media/wysiwyg/homepage/Media_1_.pngNo alt attribute provided
/media/wysiwyg/homepage/Media_1_.pngNo alt attribute provided
...ent/uploads/2025/04/naga-bf-featured.jpgThe Unexpected Joy of Street Photography with the Sigma BF
...e-Mayfeng_ImpressionPhoto_038-scaled.jpgOne Lens, Endless Possibilities
...oads/2025/05/liam-300-600mm-featured.jpgFirst Look: Exploring Patagonia with the Sigma 300-600mm F4 DG OS | Sports Lens
/media/wysiwyg/homepage/story_img.jpgNo alt attribute provided
/media/wysiwyg/homepage/story_img.jpgNo alt attribute provided
/media/wysiwyg/homepage/newsletter.pngNo alt attribute provided
/media/wysiwyg/homepage/newsletter.pngNo alt attribute provided
/media/wysiwyg/homepage/logo-footer.svgNo alt attribute provided
/media/wysiwyg/homepage/logo-footer.svgNo alt attribute provided
Video URLWidthHeight
/media/wysiwyg/video/bf_hero_top.webm

Page structure

H1 heading
(Critically important)
Sigma Corporation of America
The H1 heading is perfect.
Headings
(Important)
Some headings occur twice on the page.
There are 40 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 Sigma Corporation of America
H2 SIGMA Corporation of America
H2 New camera product GFX-02
H2 ART 17-40MM F1.8 DC
H2 AIZU PRIME
H2 THE BF CAMERA
H2 introducing sigma BF
H2 The beauty of a simple thing
H2 ART PROJECTS
H2 MADE IN AIZU
H2 it just clicks
H2 SHOOTING with SIGMA
H3 ART 35mm 1:1.2 DG II
H3 CONTEMPORARY 16-300mm 1.35-67 DC OS
H3 SPORTS 300-600mm 1:4 DG
H3 Sølve Sundsbø Sigma Art Project
H3 Julia Hetta Sigma Art Project
H4 FEATURED PRODUCT
H4 FEATURED PRODUCT Duplicate text
H4 New Products
H4 ART
H4 17-40mm F1.8 DC
H4 SPORTS
H4 300-600mm F4 DG OS
H4 CONTEMPORARY
H4 16-300mm F3.5-6.7 DC OS
H4 Three Product Lines
H4 LENSES
H4 CINE LENSES
H4 CAMERAS
H4 promotions
H4 The Unexpected Joy of Shooting with the Sigma BF By Nagamitsu Endo
H4 One Lens, Endless Possibilities By Julie Mayfeng
H4 The Zoom That Shoots Like a Prime By Liam Doran
H4 BREAKING BOUNDARIES WITH THE ULTIMATE F1.2 STANDARD PRIME LENS.
H4 Information
H4 Customer service
H4 Policies
H4 Follow Sigma Photo
H4 Follow Cine
Some anchor texts are used more than once.
5 links don't have an anchor text.
There are 4 links with a trivial 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.
There are too many external links (52) on this page.

Found links on this page

LinkAttributesAnchor text
https://www.sigmaphoto.com/lensesSubdomain LENSES
https://www.sigmaphoto.com/cineSubdomain CINE LENSES
/camerasSubdomain CAMERAS
/accessoriesACCESSORIES
/sigma-outletREFURBISHED
/discontinued-modelsSubdomain DISCONTINUED MODELS
/about-usSubdomain MADE IN AIZU
/about-usSubdomain ABOUT SIGMA
/manufacturingSubdomain MANUFACTURING
/factorySubdomain FACTORY
/sustainabilitySubdomain SUSTAINABILITY
/historySubdomain HISTORY
https://blog.sigmaphoto.com/ca...External Subdomain ART PROJECTS
/learn/ambassadorsOUR COMMUNITY
https://blog.sigmaphoto.com/External Subdomain SHOOTING WITH SIGMA
https://blog.sigmaphoto.com/ev...External Subdomain EVENTS
/supportSubdomain SUPPORT
https://press.sigmaphoto.com/External Subdomain NEWS
https://www.sigmaphoto.com/Subdomain IMG-ALT SIGMA Corporation of America
A-TITLE SIGMA Corporation of America
https://policies.google.com/pr...External Subdomain Privacy Policy
https://policies.google.com/termsExternal Subdomain Terms of Service
/customer/account/login/Subdomain Create an account
/customer/account/forgotpassword/Subdomain Forgot your password?
/checkout/cart/Subdomain Cart ()
/17-40mm-f1-8-dc-aNo Text
/17-40mm-f1-8-dc-aART 17-40MM F1.8 DC
/cine/aizu-primesAIZU PRIME Learn More
/bf-cameraexplore more
/17-40mm-f1-8-dc-aSubdomain New
IMG-ALT 17-40mm F1.8 DC | Art
/17-40mm-f1-8-dc-aSubdomain ART 17-40mm F1.8 DC
A-TITLE 17-40mm F1.8 DC | Art
/300-600mm-f4-dg-os-sSubdomain Text duplicate New
IMG-ALT 300-600mm F4 DG OS | S
/300-600mm-f4-dg-os-sSubdomain SPORTS 300-600mm F4 DG OS
A-TITLE 300-600mm F4 DG OS | S
/16-300mm-f3-5-6-7-dc-os-cSubdomain Text duplicate New
IMG-ALT 16-300mm F3.5-6.7 DC OS | C
/16-300mm-f3-5-6-7-dc-os-cSubdomain CONTEMPORARY 16-300mm F3.5-6.7 DC OS
A-TITLE 16-300mm F3.5-6.7 DC OS | C
https://blog.sigmaphoto.com/20...External Subdomain IMG-ALT Sølve Sundsbø
A-TITLE Sølve Sundsbø
https://blog.sigmaphoto.com/20...External Subdomain No Text
https://blog.sigmaphoto.com/20...External Subdomain Sølve Sundsbø Sigma Art Project
https://blog.sigmaphoto.com/20...External Subdomain Trivial anchor text
READ MORE
https://blog.sigmaphoto.com/20...External Subdomain IMG-ALT Julia Hetta
A-TITLE Julia Hetta
https://blog.sigmaphoto.com/20...External Subdomain No Text
https://blog.sigmaphoto.com/20...External Subdomain Julia Hetta Sigma Art Project
https://blog.sigmaphoto.com/20...External Subdomain Text duplicate Trivial anchor text
READ MORE
/17-40mm-f1-8-dc-aNo Text
/17-40mm-f1-8-dc-aExplore more
/300-600mm-f4-dg-os-sNo Text
/300-600mm-f4-dg-os-sText duplicate Explore more
/16-300mm-f3-5-6-7-dc-os-cNo Text
/16-300mm-f3-5-6-7-dc-os-cText duplicate Explore more
/about-usText duplicate Trivial anchor text
READ MORE
/category-photo-lensesTrivial anchor text
Read more
/category-cine-lensesText duplicate Trivial anchor text
Read more
/category-camerasText duplicate Trivial anchor text
Read more
https://blog.sigmaphoto.com/20...External Subdomain IMG-ALT The Unexpected Joy of Street Photography with the Sigma BF
A-TITLE The Unexpected Joy of Street Photography with the Sigma BF
https://blog.sigmaphoto.com/ca...External Subdomain Cameras
A-TITLE Cameras
https://blog.sigmaphoto.com/20...External Subdomain The Unexpected Joy of Shooting with the Sigma BF By Nagamitsu Endo
https://blog.sigmaphoto.com/ta...External Subdomain BF Camera
https://blog.sigmaphoto.com/ta...External Subdomain I series
https://blog.sigmaphoto.com/ta...External Subdomain Shot on BF
https://blog.sigmaphoto.com/20...External Subdomain IMG-ALT One Lens, Endless Possibilities
A-TITLE One Lens, Endless Possibilities
https://blog.sigmaphoto.com/ca...External Subdomain Impressions
A-TITLE Impressions
https://blog.sigmaphoto.com/20...External Subdomain One Lens, Endless Possibilities By Julie Mayfeng
https://blog.sigmaphoto.com/ta...External Subdomain 16-300mm F3.5-6.7 DC OS Contemporary
https://blog.sigmaphoto.com/ta...External Subdomain Contemporary Lenses
https://blog.sigmaphoto.com/20...External Subdomain IMG-ALT First Look: Exploring Patagonia with the Sigma 300-600mm F4 DG OS | Sports Lens
A-TITLE First Look: Exploring Patagonia with the Sigma 300-600mm F4 DG OS | Sports Lens
https://blog.sigmaphoto.com/ca...External Subdomain Lenses
A-TITLE Lenses
https://blog.sigmaphoto.com/20...External Subdomain The Zoom That Shoots Like a Prime By Liam Doran
https://blog.sigmaphoto.com/ta...External Subdomain 300-600mm F4 DG OS Sports
https://blog.sigmaphoto.com/ta...External Subdomain Sports Lenses
https://blog.sigmaphoto.com/ta...External Subdomain Telephoto Lenses
https://staging-blog.sigmaphot...External Subdomain Text duplicate Trivial anchor text
READ MORE
https://policies.google.com/pr...External Subdomain Text duplicate Privacy Policy
https://policies.google.com/termsExternal Subdomain Text duplicate Terms of Service
https://www.sigmaphoto.com/homeSubdomain No Text
https://www.sigma-global.com/e...External Subdomain Corporate Overview
https://www.sigma-global.com/e...External Subdomain World Network
/authorized-dealersFind a Sigma Dealer or Rental House
https://www.sigma-global.com/e...External Subdomain FAQ
/support/servicesInspection and repair
https://www.sigma-global.com/e...External Subdomain Software download
https://www.sigma-global.com/e...External Subdomain Firmware download
https://www.sigma-global.com/e...External Subdomain Manuals / Brochures / Resources
https://www.sigma-global.com/e...External Subdomain Camera compatibility
https://www.sigma-global.com/e...External Subdomain Accessories compatibility
/privacy-policyText duplicate Privacy Policy
/terms-conditionsTerms of Use
https://www.sigma-global.com/e...External Subdomain Environmental Policy
https://www.sigma-global.com/e...External Subdomain Quality Policy
https://www.facebook.com/Sigma...New window External Subdomain FACEBOOK
A-TITLE FACEBOOK
https://instagram.com/sigmaphoto/New window External INSTAGRAM
A-TITLE INSTAGRAM
https://www.youtube.com/user/S...New window External Subdomain YOUTUBE
A-TITLE YOUTUBE
https://www.tiktok.com/@sigmap...New window External Subdomain TIKTOK
A-TITLE TIKTOK
https://twitter.com/Sigma_PhotoNew window External X
A-TITLE TWITTER
https://www.facebook.com/Sigma...New window External Subdomain Text duplicate FACEBOOK
A-TITLE FACEBOOK
https://www.instagram.com/sigm...New window External Subdomain Text duplicate INSTAGRAM
A-TITLE INSTAGRAM
https://www.youtube.com/user/S...New window External Subdomain Text duplicate YOUTUBE

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.sigmaphoto.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 0.85 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 very large (696 kB).

HTTP Response Header

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External factors

This page is referenced by wikipedia.
This website has excellent links from other websites.
This page has backlinks from 336 referring domains.
This page has 485,664 backlinks.
This page has backlinks from 265 different ip addresses.

Links from Wikipedia

You can find more links using Wikipedia search

Robots.txt

User-agent: *
Disallow: /*?
# Directories
Disallow: /app/
Disallow: /errors/
Disallow: /lib/
Disallow: /scripts/
Disallow: /var/

# Paths (clean URLs)
Disallow: /index.php/
Disallow: /checkout/
Disallow: /customer/
Disallow: /newsletter/
Disallow: /review/
Disallow: /sendfriend/

# Files
Disallow: /LICENSE.txt
Disallow: /LICENSE_AFL.txt

# Paths (no clean URLs)
Disallow: /*.php$

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www.sigmaphoto.com
SIGMA Corporation of America | SIGMA Corporation of America
Sigma Corporation of America is a subsidiary of the Sigma Corporation, a Japanese based family owned manufacturer of DSLR cameras, camera lenses and camera accessories. Founded in 1961, Sigma Corporation prides itself on high quality and innovative photographic equipment

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