Uniasen.com - SEO Checker

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Overview of the SEO Check
Meta information
51% 
Page quality
90% 
Page structure
79% 
Link structure
50% 
Server
91% 
External factors
100% 
SEO Score
Response time
0.31 s
File size
208.10 kB
Words
814
Media files
63
Number of links
153 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
China Carbon Steel Pipe Supplier | SMLS, ERW, LSAW, SSAW Pipe Manufacturer
The page title should be shorter than 580 pixels. It is 736 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
China carbon steel pipe supplier. Choose the best-quality, cost-effective steel pipe from UNIASEN, a carbon steel pipe manufacturer. We supply seamless, welded, and other types of carbon steel pipes that meet various standards.
The meta description is too long: 1413 pixels from max. 1000 pixels. Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://uniasen.com/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: en
Language defined in HTML: en-us
Server location: United States of America
The following language is defined by HTML: en-us
Alternate/Hreflang Links
(Somewhat important)
An URL is specified multiple times in alternate links.
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
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
viewportwidth=device-width, initial-scale=1
descriptionChina carbon steel pipe supplier. Choose the best-quality, cost-effective steel pipe from UNIASEN, a carbon steel pipe manufacturer. We supply seamless, welded, and other types of carbon steel pipes that meet various standards.
generatorWordPress 6.8.3
msapplication-TileImagehttps://uniasen.com/wp-content/uploads/2023/08/cropped-UNIASEN-LOGO-270x270.png
article:modified_time2025-11-27T01:28:14+00:00
langen-us
twitter:cardsummary_large_image
og:localeen_US
og:typewebsite
og:titleChina Carbon Steel Pipe Supplier | SMLS, ERW, LSAW, SSAW Pipe Manufacturer
og:descriptionChina carbon steel pipe supplier. Choose the best-quality, cost-effective steel pipe from UNIASEN, a carbon steel pipe manufacturer. We supply seamless, welded, and other types of carbon steel pipes that meet various standards.
og:urlhttps://uniasen.com/
og:site_nameUNIASEN
og:imagehttps://uniasen.com/wp-content/uploads/2024/03/UNIASEN-factory-gate.webp
og:image:width2500
og:image:height1670
og:image:typeimage/webp
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 814 words. That's ok.
22.6% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
Words from the H1 heading are used in the page content.
The page contains a listing, which indicates a good text layout.
10 paragraphs were found on this page.
The text content is perfect.
No placeholders texts or images were found.
There are no duplicates on the site.
The average number of words per sentence of 14.61 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" 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 16 tags for this page.
Image SEO
(Somewhat important)
16 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
...content/uploads/2023/08/UNIASEN-LOGO.pngUNIASEN
...content/uploads/2023/08/UNIASEN-LOGO.pngUNIASEN
...ltilingual/assets/images/flags/en_US.pngen_USEnglish
...ltilingual/assets/images/flags/ru_RU.pngru_RURussian
...ltilingual/assets/images/flags/es_ES.pnges_ESSpanish
...ltilingual/assets/images/flags/ko_KR.pngko_KRKorean
...ltilingual/assets/images/flags/nl_NL.pngnl_NLDutch
...ltilingual/assets/images/flags/id_ID.pngid_IDIndonesian
...ltilingual/assets/images/flags/tr_TR.pngtr_TRTurkish
...ltilingual/assets/images/flags/fr_FR.pngfr_FRFrench
...ltilingual/assets/images/flags/de_DE.pngde_DEGerman
...ltilingual/assets/images/flags/it_IT.pngit_ITItalian
...ltilingual/assets/images/flags/pt_BR.pngpt_BRPortuguese
/wp-content/uploads/2023/08/banner.webpNo alt attribute provided
...ploads/2024/03/UNIASEN-factory-gate.webpUNIASEN factory gate
..._pipe_carbon_steel_erw_pipe_factory.webpAPI 5L gas line pipe carbon steel erw pipe factory
..._Pipe_seamless_steel_pipe_SMLS_Pipe.webpBoiler Pipe seamless steel pipe SMLS Pipe
...saw_pipe_supplier_line_pipe_factory.webpchina lsaw pipe supplier line pipe factory
...tent/uploads/2023/08/Hollow-Section.webpHollow Section hollow structural section
...ontent/uploads/2023/08/Pipe-Coating.webpPipe Coating
/wp-content/uploads/2023/08/Fittings.webpPipe Fittings
.../2023/08/labour-day_4445340-300x300.webpCarbon Steel Pipe Manufacturer_Superior Quality
...ads/2023/08/customer-review-300x300.webpCarbon Steel Pipe Manufacturer_Rich experience
...loads/2023/08/block_5998138-300x300.webpCarbon Steel Pipe Manufacturer_Diversified product lines
...ent/uploads/2023/09/on-time-300x300.webpCarbon Steel Pipe Manufacturer_On Time Delivery
/wp-content/uploads/2023/08/SSAW-Pipe.webpNo alt attribute provided
...pipe-exporter_MOGE-Pipeline-Project.webpcarbon steel pipe supplier_UNIASEN
...rer_Auckland-Port-Expanding-Project.webpcarbon steel pipe fabrication_seamless carbon steel pipe
...and-exporter_PDVSA-Pipeline-Project.webpNo alt attribute provided
...-and-exporter_Navojoa-Solar-Project.webpwholesale steel pipe_carbon steel pipes and tubes supplier
...ule_40_and_Schedule_80_Pipe_UNIASEN.webpDifference Between Schedule 40 and Schedule 80 Pipe UNIASEN
...anufacturers-and-Suppliers-in-China.webpTop Carbon Steel Pipe Manufacturers and Suppliers in China
...nufacturers-and-companies-in-the-US.webpsteel pipe manufacturers and companies in the US
...uploads/2023/08/client_CNPC-300x300.webpNo alt attribute provided
...ploads/2023/08/client_EDGEN-300x300.webpNo alt attribute provided
...uploads/2023/08/client_MOGE-300x300.webpNo alt attribute provided
...ds/2023/08/client_PETROBRAS-300x300.webpNo alt attribute provided
...t/uploads/2023/08/client_SH-300x300.webpclient_SH
/wp-content/uploads/2023/08/client_VAN.webpNo alt attribute provided
...ploads/2023/08/client_CNOOC-300x300.webpNo alt attribute provided
...oads/2023/08/client_DUFERCO-300x300.webpNo alt attribute provided
...ds/2023/08/client_ECOPETROL-300x300.webpNo alt attribute provided
...oads/2023/08/client_EDGEN-1-300x300.webpsteel pipe supplier_client
...t/uploads/2023/08/client_LG-300x300.webpNo alt attribute provided
...ploads/2023/08/client_PDVSA-300x300.webpNo alt attribute provided
...oads/2023/08/client_SAMSUNG-300x300.webpNo alt attribute provided
...loads/2023/08/client_DAIKIN-300x300.webpNo alt attribute provided
...oads/2023/08/client_STEMCOR-300x300.webpNo alt attribute provided
...ASEN-carbon-steel-manufacturer-LOGO.webpcarbon steel pipes and tubes supplier
...ploads/2023/08/email_542689-300x300.webpcarbon steel pipe suppliers_UNIASEN_email
.../uploads/2023/08/phone-call-300x300.webpcarbon steel pipe suppliers_UNIASEN_phone
...ads/2023/08/location_535188-300x300.webpcarbon steel pipe suppliers_UNIASEN_location
...ltilingual/assets/images/flags/en_US.pngen_USEnglish
...ltilingual/assets/images/flags/ru_RU.pngru_RURussian
...ltilingual/assets/images/flags/es_ES.pnges_ESSpanish
...ltilingual/assets/images/flags/ko_KR.pngko_KRKorean
...ltilingual/assets/images/flags/nl_NL.pngnl_NLDutch
...ltilingual/assets/images/flags/id_ID.pngid_IDIndonesian
...ltilingual/assets/images/flags/tr_TR.pngtr_TRTurkish
...ltilingual/assets/images/flags/fr_FR.pngfr_FRFrench
...ltilingual/assets/images/flags/de_DE.pngde_DEGerman
...ltilingual/assets/images/flags/it_IT.pngit_ITItalian
...ltilingual/assets/images/flags/pt_BR.pngpt_BRPortuguese

Page structure

H1 heading
(Critically important)
Leading Carbon Steel Pipe Supplier in China
The H1 heading is perfect.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H1 Leading Carbon Steel Pipe Supplier in China
H2 uniasen – Your trusted carbon steel pipe manufacturer
H2 Hot Products
H2 Why are our carbon steel pipes popular all over the world?
H2 Our Projects
H2 Blog
H2 Our Clients
H3 ERW Pipe
H3 Seamless Pipe
H3 LSAW Pipe
H3 Hollow Section
H3 Pipe Coating
H3 Pipe Fittings
H3 Superior Quality
H3 Rich Experience
H3 Diversified Product Lines
H3 On-Time Delivery
H5 Difference Between Schedule 40 and Schedule 80 Pipe
H5 Top 10 Carbon Steel Pipe Manufacturers and Suppliers in China
H5 Top 10 Steel Pipe Manufacturers and Suppliers in the USA
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 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://uniasen.com/Anchor Skip to content
https://uniasen.com/IMG-ALT UNIASEN
A-TITLE UNIASEN
https://uniasen.com/Home
https://uniasen.com/about/About
/about/service-and-support/Service and Support
/about/quality-and-manufacturi...Quality and Manufacturing Process
https://uniasen.com/productsProducts
/products/seamless-pipe/Seamless Steel Pipe
/products/erw-pipe/ERW Steel Pipe
/products/ssaw-pipe/SSAW Steel Pipe
/products/lsaw-pipe/LSAW Steel Pipe
/products/hollow-sections/Hollow Section
/products/coated-pipe/Coated Pipe
/products/pipe-fittings/CS Pipe Fittings
/products/line-pipe/Line Pipe
/products/steel-pipe-pile/Steel Pipe Pile
/products/fire-sprinkler-pipe/Fire Sprinkler Pipe
/products/slotted-pipe/Slotted Pipe
/products/boiler-tubes/Boiler Tubes
/products/shouldered-pipe/Shouldered Pipe
/products/ul-listed-pipe/UL Listed Fire Pipe
/products/galvanized-pipe/Galvanized Pipe
/products/structural-steel-pipe/Structural Steel Pipe
https://uniasen.com/standards/Standard
/standards/api-5l/API 5L
/standards/api-5ct/API 5CT
/standards/as-1074/AS 1074
/standards/astm-a106/ASTM A106
/standards/astm-a252/ASTM A252
/standards/astm-a500/ASTM A500
/standards/astm-a135/ASTM A135
/standards/astm-a795/ASTM A795
/standards/astm-a53/ASTM A53
/standards/as-nzs-1163/AS1163
/standards/en-10255/EN 10255
/standards/astm-a672-pipe/ASTM A672
/standards/astm-a333/ASTM A333
/standards/bs-1387-galvanized-...BS 1387 (EN 10255)
https://uniasen.com/projects/Projects
/blog/category/blog/Blog
https://uniasen.com/faq/FAQ
https://uniasen.com/contact/Contact
https://uniasen.com/English
IMG-ALT en_US
https://uniasen.com/ru/Russian
IMG-ALT ru_RU
https://uniasen.com/es/Spanish
IMG-ALT es_ES
https://uniasen.com/ko/Korean
IMG-ALT ko_KR
https://uniasen.com/nl/Dutch
IMG-ALT nl_NL
https://uniasen.com/id/Indonesian
IMG-ALT id_ID
https://uniasen.com/tr/Turkish
IMG-ALT tr_TR
https://uniasen.com/fr/French
IMG-ALT fr_FR
https://uniasen.com/de/German
IMG-ALT de_DE
https://uniasen.com/it/Italian
IMG-ALT it_IT
https://uniasen.com/pt/Portuguese
IMG-ALT pt_BR
https://uniasen.com/Anchor Contact us
/products/erw-pipe/ERW pipes
/products/seamless-pipeSMLS pipes
/products/line-pipeline pipes
/products/fire-sprinkler-pipesprinkler pipe
/products/pipe-fittingspipe fittings
https://uniasen.com/projects/Find out
https://uniasen.com/aboutNew window About us
https://www.youtube.com/watch?...External Subdomain No Text
/products/erw-pipeNew window IMG-ALT API 5L gas line pipe carbon steel erw pipe factory
/products/erw-pipeERW Pipe
/products/seamless-pipeNew window IMG-ALT Boiler Pipe seamless steel pipe SMLS Pipe
/products/seamless-pipeSeamless Pipe
/products/lsaw-pipeNew window IMG-ALT china lsaw pipe supplier line pipe factory
/products/lsaw-pipeLSAW Pipe
/products/hollow-sectionsNew window IMG-ALT Hollow Section hollow structural section
/products/hollow-sectionsText duplicate Hollow Section
/products/coated-pipeNew window IMG-ALT Pipe Coating
/products/coated-pipeText duplicate Pipe Coating
/products/pipe-fittingsNew window IMG-ALT Pipe Fittings
/products/pipe-fittingsText duplicate Pipe Fittings
https://uniasen.com/Anchor Get A Free Quote Now
/standards/api-5l/Text duplicate API 5L
/standards/astm-a53/Text duplicate ASTM A53
/standards/en-10219/EN10219
https://uniasen.com/Anchor Text duplicate Get A Free Quote Now
https://uniasen.com/projectsNew window See More Successful Projects
/blog/difference-between-sched...IMG-ALT Difference Between Schedule 40 and Schedule 80 Pipe UNIASEN
/blog/difference-between-sched...Difference Between Schedule 40 and Schedule 80 Pipe
/blog/top-10-carbon-steel-pipe...IMG-ALT Top Carbon Steel Pipe Manufacturers and Suppliers in China
/blog/top-10-carbon-steel-pipe...Top 10 Carbon Steel Pipe Manufacturers and Suppliers in China
/blog/top-steel-pipe-manufactu...IMG-ALT steel pipe manufacturers and companies in the US
/blog/top-steel-pipe-manufactu...Top 10 Steel Pipe Manufacturers and Suppliers in the USA
/products/erw-pipeText duplicate ERW Pipe
/products/seamless-pipeSMLS Pipe
/products/lsaw-pipeText duplicate LSAW Pipe
/products/hollow-sectionsText duplicate Hollow Section
/products/coated-pipeText duplicate Coated Pipe
/products/pipe-fittingsText duplicate Pipe Fittings
https://uniasen.com/standards/All Standard
/standards/astm-a106Text duplicate ASTM A106
/blog/as-nzs-1163-steel-pipeAS 1163
/standards/as-1074Text duplicate AS 1074
/blog/api-5l-pipes-for-pipelin...Text duplicate API 5L
/standards/astm-a135Text duplicate ASTM A135
https://www.facebook.com/uniasenNew window Nofollow External Subdomain A-TITLE Follow on Facebook
https://twitter.com/uniasenNew window Nofollow External A-TITLE Follow on Twitter
https://www.linkedin.com/compa...New window Nofollow External Subdomain A-TITLE Follow on LinkedIn
https://www.youtube.com/@UNIAS...New window Nofollow External Subdomain A-TITLE Follow on YouTube
/terms-of-service/Terms of Service
/privacy-policy/Privacy Policy
https://uniasen.com/Anchor Inquiry
https://uniasen.com/Anchor Top
https://uniasen.com/Anchor No Text
https://uniasen.com/Text duplicate Home
https://uniasen.com/about/Text duplicate About
/about/service-and-support/Text duplicate Service and Support
/about/quality-and-manufacturi...Text duplicate Quality and Manufacturing Process
https://uniasen.com/productsText duplicate Products
/products/seamless-pipe/Text duplicate Seamless Steel Pipe
/products/erw-pipe/Text duplicate ERW Steel Pipe
/products/ssaw-pipe/Text duplicate SSAW Steel Pipe
/products/lsaw-pipe/Text duplicate LSAW Steel Pipe
/products/hollow-sections/Text duplicate Hollow Section
/products/coated-pipe/Text duplicate Coated Pipe
/products/pipe-fittings/Text duplicate CS Pipe Fittings
/products/line-pipe/Text duplicate Line Pipe
/products/steel-pipe-pile/Text duplicate Steel Pipe Pile
/products/fire-sprinkler-pipe/Text duplicate Fire Sprinkler Pipe
/products/slotted-pipe/Text duplicate Slotted Pipe
/products/boiler-tubes/Text duplicate Boiler Tubes
/products/shouldered-pipe/Text duplicate Shouldered Pipe
/products/ul-listed-pipe/Text duplicate UL Listed Fire Pipe
/products/galvanized-pipe/Text duplicate Galvanized Pipe
/products/structural-steel-pipe/Text duplicate Structural Steel Pipe
https://uniasen.com/standards/Text duplicate Standard
/standards/api-5l/Text duplicate API 5L
/standards/api-5ct/Text duplicate API 5CT
/standards/as-1074/Text duplicate AS 1074
/standards/astm-a106/Text duplicate ASTM A106
/standards/astm-a252/Text duplicate ASTM A252
/standards/astm-a500/Text duplicate ASTM A500
/standards/astm-a135/Text duplicate ASTM A135
/standards/astm-a795/Text duplicate ASTM A795
/standards/astm-a53/Text duplicate ASTM A53
/standards/as-nzs-1163/Text duplicate AS1163
/standards/en-10255/Text duplicate EN 10255
/standards/astm-a672-pipe/Text duplicate ASTM A672
/standards/astm-a333/Text duplicate ASTM A333
/standards/bs-1387-galvanized-...Text duplicate BS 1387 (EN 10255)
https://uniasen.com/projects/Text duplicate Projects
/blog/category/blog/Text duplicate Blog
https://uniasen.com/faq/Text duplicate FAQ
https://uniasen.com/contact/Text duplicate Contact
https://uniasen.com/Text duplicate English
IMG-ALT en_US
https://uniasen.com/ru/Text duplicate Russian
IMG-ALT ru_RU
https://uniasen.com/es/Text duplicate Spanish
IMG-ALT es_ES
https://uniasen.com/ko/Text duplicate Korean
IMG-ALT ko_KR
https://uniasen.com/nl/Text duplicate Dutch
IMG-ALT nl_NL
https://uniasen.com/id/Text duplicate Indonesian
IMG-ALT id_ID
https://uniasen.com/tr/Text duplicate Turkish
IMG-ALT tr_TR
https://uniasen.com/fr/Text duplicate French
IMG-ALT fr_FR
https://uniasen.com/de/Text duplicate German
IMG-ALT de_DE
https://uniasen.com/it/Text duplicate Italian
IMG-ALT it_IT
https://uniasen.com/pt/Text duplicate Portuguese
IMG-ALT pt_BR

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://uniasen.com/"
HTTP header
(Important)
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time is excellent with 0.31 seconds.
The file size of the HTML document is fine (208 kB).

HTTP Response Header

NameValue
dateWed, 18 Feb 2026 02:22:45 GMT
content-typetext/html; charset=UTF-8
cf-ray9cfa0f004da4d2eb-FRA
cf-cache-statusHIT
age4103
cache-controlmax-age=16070400
content-encodingbr
last-modifiedWed, 18 Feb 2026 01:14:22 GMT
link<https://uniasen.com/wp-json/>; rel="https://api.w.org/", <https://uniasen.com/wp-json/wp/v2/pages/2>; rel="alternate"; title="JSON"; type="application/json", <https://uniasen.com/>; rel=shortlink
servercloudflare
varyAccept-Encoding
x-powered-bycentminmod
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=gGrJ2BFLPN3I%2FB4gXwC0w5XtD0k7VSfJvX3WvCQ9l20Ik4tJyacz7%2Bmcc0n%2BXi4JP8SftCvHrdrtAH8W4rsIgt9tDFLkrmCWNgq2"}]}
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
alt-svch3=":443"; ma=86400
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 45 referring domains.
This page has 49 backlinks.
This page has backlinks from 36 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

User-agent: *
Disallow: /shop
Disallow: /author
Disallow: /category
Disallow: /block
Sitemap: https://uniasen.com/sitemap_index.xml

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Search preview

uniasen.com
China Carbon Steel Pipe Supplier | SMLS, ERW, LSAW, SSAW Pipe Manuf...
China carbon steel pipe supplier. Choose the best-quality, cost-effective steel pipe from UNIASEN, a carbon steel pipe manufacturer. We supply seamless, welded, and other types of carbon steel pipes that meet various standards.

Most important keywords

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

KeywordResultRecheck
Steel81%Check
Carbon81%Check
Carbon Steel81%Check
China81%Check
China Carbon Steel Pipe81%Check
Pipe80%Check
Carbon Steel Pipe80%Check
Steel Pipe79%Check
Carbon Steel Pipe Supplier79%Check
Supplier77%Check
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