Lunos.de - SEO Checker

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Overview of the SEO Check
Meta information
58% 
Page quality
78% 
Page structure
45% 
Link structure
87% 
Server
81% 
External factors
27% 
SEO Score
Response time
0.62 s
File size
57.90 kB
Words
1002
Media files
22
Number of links
101 internal / 14 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Decentralized ventilation systems for controlled home ventilation - LUNOS
The page title should be shorter than 580 pixels. It is 661 pixels long. Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Decentralized ventilation systems ✅ With & without heat recovery ✅ From Market leader ✅ For new build & renovation ✅ For demand-oriented flow ✅ Made in Germany ✅
The meta description is too long: 1069 pixels from max. 1000 pixels. Optimize description
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: Germany
The following language is defined by HTML: en
Alternate/Hreflang Links
(Somewhat important)
The specified alternate links have no errors.
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)
No favicon is linked in the HTML code.

Meta tags

NameValue
robotsindex,follow
descriptionDecentralized ventilation systems ✅ With & without heat recovery ✅ From Market leader ✅ For new build & renovation ✅ For demand-oriented flow ✅ Made in Germany ✅
generatorContao Open Source CMS
google-site-verificationpPu20gxV8tHPGmP7he-mIp2I9jn2thIH7TK6hdvpk28
viewportwidth=1350
langen
charsetUTF-8

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Page quality

Content
(Critically important)
This page contains 1002 words. That's ok.
32.2% 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.
21 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 15.9 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=1350" is provided.
Bold and strong tags
(Somewhat important)
The amount of tags is very high (24). We recommend using a maximum of 20 tags for this page.
Some tags are too long. With 73 characters this one is longer than 70 characters:
"our service for planners, architects, installers, building owners & users"
Image SEO
(Somewhat important)
21 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
...neuer Wärmetauscher_16:9_EN-3c0508a9.pngNo alt attribute provided
/assets/images/e/overlay-welle-d800822d.pngNo alt attribute provided
...ages/6/neu-teaser-mediathek-d3d24164.pngNo alt attribute provided
.../images/2/neu-teaser-living-335608d6.pngNo alt attribute provided
...ts/images/2/neu-teaser-blog-4e4cc285.pngNo alt attribute provided
...rung_Energetische Sanierung-500f0a20.pngNo alt attribute provided
...otiv_KI im Mittelstand_News-26056e43.jpgNo alt attribute provided
/assets/images/8/Zulassungen-6edb6399.jpgNo alt attribute provided
... Plexiglas_Bildunterschrift-8b870679.pngNo alt attribute provided
...men mit Pfeilen Luftverlauf-92b35746.pngNo alt attribute provided
...Hintergrund_Zeichenfläche 1-97cb7c59.pngNo alt attribute provided
...icker_Praktikumsunternehmen-9e7ac470.jpgNo alt attribute provided
...s/images/0/ish-logo-rgb-1x1-b1c30ead.jpgNo alt attribute provided
...ungssysteme im Überblick_EN-97719d31.pngNo alt attribute provided
...mages/b/neu-teaser-produkte-0b5e63b3.pngNo alt attribute provided
/assets/images/2/planer-0e176bbc.pngNo alt attribute provided
/assets/images/e/overlay-welle-d800822d.pngNo alt attribute provided
...ts/images/5/made-in-germany-24fc9f95.pngNo alt attribute provided
...es/2/PNG_worldmarketleader2-4be48692.pngNo alt attribute provided
.../8/Ausgezeichnete Kunden_EN-5ef74fcc.pngNo alt attribute provided
/assets/images/a/footer-31e6931e.jpgNo alt attribute provided
Video URLWidthHeight
...artseite/Silvento_WLAN_WEBVERSION_UK.mp4

Page structure

H1 heading
(Critically important)
Decentralized ventilation systems
Too many H1 headings
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.
Some headings do not have any content.

Heading structure

Heading levelContent
H1 Decentralized ventilation systems
H1 Empty heading
H1 Empty heading
H1 New motor, new model
H2 Complete systems and individual products
H2 The ego60-RF with more power and wireless screen
H2 One-stop shop – Complete systems and individual products
H2 Optimum indoor air quality thanks to advanced ventilation systems
H4 For the informal ventilation concept!
Baselink: https://www.lunos.de/
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 14 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://www.lunos.de/enSkip navigation
https://www.lunos.de/enText duplicate Skip navigation
/en/newsletterNewsletter
A-TITLE Newsletter
https://www.lunos.de/enText duplicate Skip navigation
https://www.lunos.de/en/newsNews
A-TITLE News
/en/news/press-releasePress release
A-TITLE Press release
/en/event-calendarEvent-Calendar
A-TITLE Event-Calendar
https://www.lunos.de/en/systemsSystems
A-TITLE Systems
/en/for-exhaust-systemFor exhaust
A-TITLE For exhaust
/en/for-combined-systemFor hybrid ventilation
A-TITLE For hybrid ventilation
/en/for-ventilation-systemsFor ventilation systems
A-TITLE For ventilation systems
/en/for-heat-recoveryFor heat recovery
A-TITLE For heat recovery
/en/lunos-livingLUNOS living
A-TITLE LUNOS living
/en/all-productsProducts
A-TITLE Products
/en/all-productsAll products
A-TITLE All products
/en/accessoriesAccessories
A-TITLE Accessories
/en/central-unitCentral ventilation unit
A-TITLE Central ventilation unit
/en/control-elementsControl elements
A-TITLE Control elements
/en/exhaust-airExhaust air fans
A-TITLE Exhaust air fan | Air exchange for a healthy indoor climate
/en/facade-elementsFacade elements
A-TITLE Ventilation in the window reveal | Invisible & soundproofed
https://www.lunos.de/en/overflowOverflow
A-TITLE Overflow
/en/replacement-filterReplacement filter
A-TITLE Replacement filter for decentralized fans | For long-lasting air quality
/en/sound-insulationSound insulation fans
A-TITLE Soundproof ventilators | Home ventilation with noise protection
/en/supply-airSupply air elements
A-TITLE The outer wall air vent | Fresh air supply in the house
/en/building-refurbishmentFor building renovation
A-TITLE Building refurbishment with ventilation units
/en/smart-homeFor smart home
A-TITLE For smart home
/en/heat-recoveryText duplicate For heat recovery
A-TITLE Ventilator with heat recovery
https://www.lunos.de/en/knowledgeKnowledge
A-TITLE Knowledge
/en/knowledge-blogAdvisor
A-TITLE Advisor
/en/knowledge/faqFAQ
A-TITLE FAQ
/en/media-libraryMedia library
A-TITLE Media library
https://www.lunos.de/en/serviceService
A-TITLE Service
/en/service/for-architectsFor architects
A-TITLE For architects
/en//for-usersFor users
A-TITLE For users
/en/service/for-specialist-pla...For specialist planners
A-TITLE For specialist planners
/en/service/for-installersFor installers
A-TITLE For installers
/en/configurator-for-the-exhibitsDisplay configurator
A-TITLE Display configurator
/en/referencesReferences
A-TITLE References
/en/references-germanyGermany
A-TITLE Germany
/en/referenzen-worldwideWorldwide
A-TITLE Worldwide
/en/installation-examplesInstallation examples
A-TITLE Installation examples
/en/extreme-installation-situa...Installation examples extreme
A-TITLE Installation examples extreme
https://www.lunos.de/en/about-usAbout us
A-TITLE About us
https://www.lunos.de/en/fundingFunding opportunities
A-TITLE Funding opportunities
/en/about-us/jobsCareer
A-TITLE Career
/en/engagementEngagement
A-TITLE Engagement
/en/sustainabilitySustainability
A-TITLE Sustainability
https://www.lunos.de/en/contactContact
A-TITLE Contact
https://www.lunos.de/en/downloadsDownloads
A-TITLE Downloads
https://www.lunos.de/enText duplicate Skip navigation
/en/search-resultSearch result
A-TITLE Search result
https://www.lunos.de/New window Subdomain DE
A-TITLE Dezentrale Lüftungssysteme zur Wohnraumlüftung
https://www.lunos.de/lunos-slNew window Subdomain SL
A-TITLE Lunos Slovenščina
https://www.lunos.de/lunos-hrNew window Subdomain HR
A-TITLE Lunos (hr)
https://www.lunos.de/lunos-baNew window Subdomain BS
A-TITLE Lunos (ba)
https://www.lunos.de/lunos-itNew window Subdomain IT
A-TITLE Lunos (it)
https://www.lunos.de/lunos-grNew window Subdomain GR
A-TITLE Lunos (gr)
https://www.lunos.de/lunos-csNew window Subdomain CS
A-TITLE Lunos (cs)
/en/privacy-policyNew window Privacy policy
https://www.lunos.de/enText duplicate Skip navigation
https://www.lunos.de/en/inquireInquire
A-TITLE Inquire
https://www.lunos.de/en/contactText duplicate Contact
A-TITLE Contact
/en/knowledge/faqText duplicate FAQ
A-TITLE FAQ
/en/all-productsNew window product portfolio
https://www.lunos.de/en/systemsNew window to system comparison
/en/all-products/ego-60-rfNew window go to product
/en/building-refurbishmentNew window building renovation
https://www.lunos.de/lunos-livingNew window to LUNOS living
/en/knowledge-blogNew window to the guide
https://www.haustechnikdialog....External Subdomain A-TITLE Read the article: Subsidies for energy-efficient renovation
https://www.haustechnikdialog....External Subdomain Subsidies for energy-efficient renovation
A-TITLE Read more on https://www.haustechnikdialog.de/News/30441/Energetische-Sanierung-Was-steuerlich-moeglich-ist-und-welche-Voraussetzungen-erfuellt-sein-muessen
https://www.haustechnikdialog....External Subdomain ... Read more
https://tisth.de/2025/06/04/ki...New window External A-TITLE Read the article: LUNOS develops its own AI
https://tisth.de/2025/06/04/ki...New window External LUNOS develops its own AI
A-TITLE Read more on https://tisth.de/2025/06/04/ki-im-mittelstand-wie-lunos-fuer-3-500-e-digitalisiert/
https://tisth.de/2025/06/04/ki...External Text duplicate ... Read more
/files/Homepage Content/2. New...New window A-TITLE Read the article: LUNOS ventilators receive abZ from DIBt
/files/Homepage Content/2. New...New window LUNOS ventilators receive abZ from DIBt
A-TITLE Read more on
/files/Homepage Content/2. New...Text duplicate ... Read more
/files/Homepage Content/2. New...New window A-TITLE Read the article: LUNOS receives award again
/files/Homepage Content/2. New...New window LUNOS receives award again
A-TITLE Read more on
/files/Homepage Content/2. New...Text duplicate ... Read more
https://www.shkfachzeitung.com...New window External Subdomain A-TITLE Read the article: LUNOS explains modern air filtration
https://www.shkfachzeitung.com...New window External Subdomain LUNOS explains modern air filtration
A-TITLE Read more on https://www.shkfachzeitung.com/iso-coarse-ueber-45-prozent/informationen/6018/
https://www.shkfachzeitung.com...External Subdomain Text duplicate ... Read more
/files/Homepage Content/2. New...New window A-TITLE Read the article: LUNOS presents new WLAN module
/files/Homepage Content/2. New...New window LUNOS presents new WLAN module
A-TITLE Read more on
/files/Homepage Content/2. New...Text duplicate ... Read more
/en/details/training-with-air-...A-TITLE Read the article: Training with air jump at LUNOS
/en/details/training-with-air-...Training with air jump at LUNOS
A-TITLE Read the article: Training with air jump at LUNOS
/en/details/training-with-air-...Text duplicate ... Read more
/News/event-calendar/event/ish...New window Subdomain A-TITLE Read the article: LUNOS at ISH 2025 in Frankfurt/Main
/News/event-calendar/event/ish...New window Subdomain LUNOS at ISH 2025 in Frankfurt/Main
A-TITLE Read more on https://www.lunos.de/News/event-calendar/event/ish-2025
/News/event-calendar/event/ish...Subdomain Text duplicate ... Read more
https://www.lunos.de/en/systemsSubdomain A-TITLE Lüftungssysteme im Überblick_EN
https://www.lunos.de/en/systemsNew window All systems
/en/all-productsNew window Text duplicate All products
https://www.lunos.de/en/serviceservice area
/sales-worldwide» LUNOS International
/en/references» Excerpt of our references
/en/decentralised-home-ventila...New window home ventilation
/en/all-productsventilation technology products
/en/for-heat-recoveryNew window heat recovery
/en/exhaust-airNew window exhaust fans
/en/facade-elementsNew window facade elements
https://www.lunos.de/enText duplicate Skip navigation
/en/privacy-policyText duplicate Privacy policy
A-TITLE Privacy policy
/en/legal-noticeLegal notice
A-TITLE Legal notice
https://www.lunos.de/en/about-usAbout LUNOS
A-TITLE About LUNOS
https://www.lunos.de/en/contactText duplicate Contact
A-TITLE Contact
https://www.instagram.com/luno...New window External Subdomain Instagram
https://www.linkedin.com/compa...New window External Subdomain Linkedin
/newsletteranmeldungNew window Text duplicate Newsletter
https://www.xing.com/pages/lun...New window External Subdomain Xing
https://www.youtube.com/@Lunos...New window External Subdomain YouTube
https://www.b2k-media.de/New window External Subdomain Webdesign Berlin

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.lunos.de/en"
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 of 0.62 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 (58 kB).

HTTP Response Header

NameValue
servernginx
dateThu, 24 Jul 2025 02:31:39 GMT
content-typetext/html; charset=UTF-8
content-length13664
cache-controlmust-revalidate, no-cache, no-store, private
x-powered-byPHP/8.2.29
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade, strict-origin-when-cross-origin
permissions-policyinterest-cohort=()
x-frame-optionsSAMEORIGIN
x-xss-protection1; mode=block
contao-cachemiss
age1
pragmano-cache
expires-1
set-cookie76 Characters
varyAccept-Encoding
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

This page has only a few links from other websites.
This page only has backlinks from 9 referring domains.
This page only has 19 backlinks.
This page only has few backlinks from 9 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

user-agent:*
disallow:/contao/
disallow:/_contao/

sitemap:https://www.lunos.de/sitemap.xml

Similar sites

Search preview

www.lunos.de
Decentralized ventilation systems for controlled home ventilation -...
Decentralized ventilation systems ✅ With & without heat recovery ✅ From Market leader ✅ For new build & renovation ✅ For demand-oriented flow ✅ Made in Germany ✅

Most important keywords

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

KeywordResultRecheck
ventilation82%Check
ventilation systems79%Check
Decentralized ventilation79%Check
Central ventilation79%Check
Decentralized ventilation systems77%Check
Systems75%Check
Decentralized73%Check
complete ventilation systems67%Check
advanced ventilation systems65%Check
Ventilation Technology62%Check
Show more keywords and terms

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Cookie Policy

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