Vallox.de - SEO Checker

Sign up for free! PDF Export
Overview of the SEO Check
Meta information
100% 
Page quality
79% 
Page structure
95% 
Link structure
96% 
Server
67% 
External factors
100% 
SEO Score
Response time
0.84 s
File size
595.60 kB
Words
656
Media files
13
Number of links
66 internal / 7 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Lüftungsanlagen mit Wärmerückgewinnung | VALLOX
The length of the page title is perfect. (478 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Frische Luft mit einer Lüftungsanlage von VALLOX. Behagliches Raumklima ✓ Optimale Luftqualität & Energieeffizienz ✓ 24h lang ➤ Jetzt informieren.
The length of the meta description is perfect. (926 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://vallox.de/
There is a valid canonical link specified.
Language
(Somewhat important)
Language detected in text: de
Language defined in HTML: de
Server location: Germany
The following language is defined by HTML: de
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
robotsindex, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
descriptionFrische Luft mit einer Lüftungsanlage von VALLOX. Behagliches Raumklima ✓ Optimale Luftqualität & Energieeffizienz ✓ 24h lang ➤ Jetzt informieren.
generatorWP Rocket 3.18.3
viewportwidth=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0
msapplication-TileImagehttps://vallox.de/wp-content/uploads/2023/10/cropped-favicon-96x96-1-270x270.png
article:modified_time2025-06-05T07:29:31+00:00
langde
twitter:cardsummary_large_image
og:localede_DE
og:typewebsite
og:titleLüftungsanlagen mit Wärmerückgewinnung | VALLOX
og:descriptionFrische Luft mit einer Lüftungsanlage von VALLOX. Behagliches Raumklima ✓ Optimale Luftqualität & Energieeffizienz ✓ 24h lang ➤ Jetzt informieren.
og:urlhttps://vallox.de/
og:site_nameVallox GmbH
og:imagehttps://vallox.de/wp-content/uploads/2024/02/Icon-EFH-rund_528x315.png
og:image:width528
og:image:height315
og:image:typeimage/png
X-UA-CompatibleIE=edge
charsetUTF-8

Automatically check vallox.de including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Page quality

Content
(Critically important)
This page contains 656 words. That's ok.
34.5% 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.
12 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 17.95 words is good.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
The file size of the HTML document is very large (595.6 kB).
A viewport "width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
Empty bold or strong tags were found on this page.
The amount of tags is very high (21). We recommend using a maximum of 13 tags for this page.
The following tag is repeated too often: commercial line
Image SEO
(Somewhat important)
Alt text (alternative text) is correctly used on all found images.
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
/wp-content/uploads/2023/09/logo.pngVallox GmbH
...024/02/Icon-EFH-rund_528x315-300x179.pngIcon Einfamilienhäuser
...024/02/Icon-MFH-rund_528x315-300x179.pngIcon Mehrfamilienhäuser
...4/02/Icon-Buero-rund_528x315-300x179.pngIcon Büros und gewerbliche Objekte
.../02/Icon-Schule-rund_528x315-300x179.pngIcon öffentliche Objekte

Page structure

H1 heading
(Critically important)
VALLOX Lüftungsanlagen mit Wärmerückgewinnung für jede Anforderung.
The H1 heading is perfect.
Headings
(Important)
Some headings do not have any content.

Heading structure

Heading levelContent
H1 VALLOX Lüftungsanlagen mit Wärmerückgewinnung für jede Anforderung.
H2 Lüftungsanlagen für Einfamilienhäuser.
H2 Lüftungsanlagen für Mehrfamilienhäuser.
H2 Lüftungsanlagen für gewerbliche Objekte.
H2 Lüftungsanlagen für öffentliche Objekte.
H2 Produktübersicht VALLOX Lüftungsanlagen mit Wärmerückgewinnung.
H2 Preissensitive Einstiegsserie in die zentrale Wohnraumlüftung.
H2 Smarte Lüftungsanlagen für optimales Wohnraumklima.
H2 Hocheffiziente Lüftungsanlagen für Gewerbe und Wohnraum.
H2 Dezentrale Hochleistungsgeräte für Gewerbe und Bildungseinrichtungen.
H2 ValloFlex Luftverteilsystem.
H2 Empty heading
H2 Neuigkeiten aus der VALLOX Welt.
H2 Unsere aktuellen Top-Referenzen jetzt im neuen LOOKBOOK.
H2 Frische Luft, frische Energie!
H2 Jetzt Platz sichern: Hygieneschulung nach VDI 6022 A & B.
H2 Warum ist der Einsatz einer Lüftungsanlage ratsam?
H2 Projektanfrage stellen.
H3 Dezentrale Lüftungsanlagen in Kombination mit Abluftsystemen.
Some anchor texts are used more than once.
1 links don't have an 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 7 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://vallox.de/IMG-ALT Vallox GmbH
/lueftungsanlagen/Lüftungssysteme
/lueftungsanlagen/zentrale-lue...Zentrale Lüftungsanlagen
/lueftungsanlagen/dezentrale-l...Dezentrale Lüftungsanlagen
/lueftungsanlagen/referenzen/Referenzen
https://vallox.de/produkte/Produkte
/produkte/basic-line-raum/Basic Line Raum
/produkte/basic-line-gebaeude/Basic Line Gebäude
/produkte/professional-line/Professional Line
https://commercial-line.vallox...New window External Subdomain Commercial Line
/produkte/luftverteilsystem/Luftverteilsystem
/produkte/myvallox/MyVallox
/produkte/schule-und-gewerbe/Schule und Gewerbe
https://vallox.de/loesungen/Lösungen
/loesungen/einfamilienhaus/Einfamilienhaus
/loesungen/mehrfamilienhaus/Mehrfamilienhaus
/loesungen/gewerbe/Gewerbe
/loesungen/schulen/Schulen
https://vallox.de/service/Service
https://lounge.vallox.de/kd/ku...New window External Subdomain Kundendienst
/service/downloads/Downloads
/service/downloads/planungstools/Planungstools
/service/downloads/ausschreibu...Ausschreibungstexte und VDI 3805 Daten
/service/downloads/cad-bibliot...CAD-Bibliothek
/service/downloads/unterlagen/Unterlagen
/service/downloads/oekodesign-...Ökodesign-Richtlinien
/service/downloads/archiv/Archiv
/service/newsletter/Newsletter
https://vallox.de/service/faq/FAQ
/service/systemgarantie/New window Systemgarantie
/service/bafa-foerderung/Förderung
https://vallox.de/unternehmen/Unternehmen
/unternehmen/ueber/Über
/unternehmen/karriere/Karriere
/unternehmen/presse/Presse
/unternehmen/news-veranstaltun...News / Veranstaltungen
/unternehmen/news-veranstaltun...News
/unternehmen/news-veranstaltun...Termine
/unternehmen/engagement-und-sp...Engagement und Sponsoring
https://vallox.de/kontakt/Kontakt
https://vallox.de/seminare/Seminare
/seminare/webinare/Webinare
/seminare/basic-kompakt-seminar/BASIC Kompakt Seminar
/seminare/advanced-kompakt-sem...ADVANCED Kompakt Seminar
/seminare/spezial-seminar/SPEZIAL Seminar
/seminare/planer-seminar/PLANER Seminar
/lueftungsanlagen/zentrale-lue...zentraler
/lueftungsanlagen/dezentrale-l...dezentraler Lüftung
/lueftungsanlagen/Lüftungssystemen
/lueftungsanlagen/zentrale-lue...zentralen Lüftungsanlagen
/lueftungsanlagen/dezentrale-l...dezentralen Lüftungsanlagen
/produkte/basic-line-raum/Zur Basic Line Raum
/produkte/basic-line-gebaeude/Zur Basic Line Gebäude
/produkte/professional-line/Zur Professional Line
https://commercial-line.vallox...External Subdomain Zur zentralen Commercial Line
https://commercial-line.vallox...External Subdomain Zur dezentralen Commercial Line
/produkte/luftverteilsystem/Zum Luftverteilsystem
https://oxomi.com/p/3000306/ca...External Mehr erfahren
/unternehmen/news-veranstaltun...Text duplicate Mehr erfahren
/wp-content/uploads/2025/04/Hy...Mehr erfahren und anmelden
/service/bafa-foerderung/Fördermöglichkeiten für Ihre Lüftungsanlage
https://vallox.de/kontakt/Projektanfrage
/profi/projektanfrageNo Text
https://vallox.de/Service/FAQFAQ zur kontrollierten Wohnraumlüftung.
/Service/Downloads Downloads
https://vallox.de/Service/FAQu FAQs
https://vallox.de/Kontakt Kontakt
/Prinzip/Referenzen Referenzen
https://lounge.vallox.de/kd/ku...New window External Subdomain  Service
https://shop.vallox.de/epages/...New window External Subdomain  Webshop
https://vallox.de/impressumImpressum
https://vallox.de/datenschutzDatenschutz
/Service/NewsletterText duplicate Newsletter

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://vallox.de/"
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 0.84 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 very large (596 kB).

HTTP Response Header

NameValue
content-typetext/html; charset=UTF-8
x-ws-ratelimit-limit1000
x-ws-ratelimit-remaining999
dateWed, 11 Jun 2025 09:28:23 GMT
serverApache
x-powered-byPHP/8.2.28
last-modifiedWed, 11 Jun 2025 07:38:13 GMT
content-encodinggzip
statuscode200
http_versionHTTP/2

External factors

This website has excellent links from other websites.
This page has backlinks from 309 referring domains.
This page has 3,631 backlinks.
This page has backlinks from 185 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

# START WPFORMS BLOCK
# ---------------------------
User-agent: *
Disallow: https://vallox.de/wp-content/uploads/wpforms/
# ---------------------------
# END WPFORMS BLOCK

# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow: /?s=
Disallow: /page/*/?s=
Disallow: /search/

Sitemap: https://vallox.de/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK

Similar sites

Search preview

vallox.de
Lüftungsanlagen mit Wärmerückgewinnung | VALLOX
Frische Luft mit einer Lüftungsanlage von VALLOX. Behagliches Raumklima ✓ Optimale Luftqualität & Energieeffizienz ✓ 24h lang ➤ Jetzt informieren.

Most important keywords

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

KeywordResultRecheck
VALLOX96%Check
VALLOX Lüftungsanlagen79%Check
Lüftungsanlagen mit Wärmerückgewinnung72%Check
Wärmerückgewinnung70%Check
Lüftungsanlagen65%Check
Wohnraumlüftung mit Wärmerückgewinnung65%Check
Luft59%Check
Frische Luft56%Check
Dezentrale Lüftungsanlagen55%Check
Qualität51%Check
Show more keywords and terms

Automatically check vallox.de including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

Contact | Privacy

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions