- SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
0.06 s
File size
14.50 kB
Media files
Number of links
29 internal / 5 external

Task list of SEO Improvements

Meta specifications

(Critically important)
Dark Sky - Initiative gegen Lichtverschmutzung
The length of the page title is perfect. (422 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
Fachgruppe Dark Sky - Initiative gegen Lichtverschmutzung
The length of the meta description is perfect. (368 pixels out of 1000 max pixel length)
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(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.
(Somewhat important)
The domain name is very long.
The domain is no subdomain.
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.
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

authorAndreas Hänel, VdS Fachgruppe Dark Sky
robotsindex, follow
descriptionFachgruppe Dark Sky - Initiative gegen Lichtverschmutzung
keywordsLichtverschmutzung, Lichtsmog, Umwelt, Umweltschutz, Naturschutz, Energieeffizienz, Skybeamer, Leuchtreklame, Gebäudeanstrahlung, Lichtimmission, Lichtersmog, Immissionsschutz, Beleuchtung, Straßenbeleuchtung, Bundesimmissionsschutzgesetz, BImschG, Lichtabstrahlung, Aufhellung des Nachthimmels, Vogelschutz, Zugvögel, Tag-Nacht Rhythmus, DarkSky, Astronomie, VdS, Vereinigung der Sternfreunde, Sternhimmel, Milchstraße, Sichtbarkeit der Milchstraße, Lichtverschmutzungskarte
Content-Typetext/html; charset=utf-8

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Page quality

(Critically important)
Some words from the page title are not used within the pages content
This page contains 748 words. That's ok.
44.5% of the text are stop words.
The page contains a listing, which indicates a good text layout.
15 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 17.03 words is good.
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No viewpoint tag is provided.
No Apple touch icon is specified.
This page does not require any JavaScript files.
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)
3 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.
(Somewhat important)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
/grafik/blank.gifNo alt attribute provided
/grafik/vds_logo_titel.gifVdS Fachgruppe
/grafik/ds_logo_titel.gifDARK SKY
/grafik/blank.gifNo alt attribute provided
/grafik/blank.gifNo alt attribute provided
/foto/mstr_kr.jpgEin Ausschnitt der Milchstraße über Kreta. Zum Vergleich (bei Rollover) aus einer mittelgroßen Stadt in Deutschland fotografiert
/grafik/hoch.gifnach oben

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H3 Was ist Lichtverschmutzung?
H4 Lichtverschmutzung und Ökologie
H4 Die Gesetzgebung in Deutschland
Some internal links have dynamic parameters. All internal URLs, which are not marked as nofollow, should not contain dynamic parameters.
There are 1 links with a trivial anchor text.
The number of internal links is ok.
Every linktext is unique.
None of the anchor texts is too long.
There are 5 external links on this page.
LinkAttributesAnchor text window External IMG-ALT VdS Fachgruppe
/zubehoer/download.php?file=Re...› PDF
/dokumente/Umsetzung_Vorgaben_...New window Planungshilfen zur Reduzierung von Lichtverschmutzung
/dokumente/Muster-Lichtleitlin...New window Muster-Lichtleitlinie zur Reduzierung von Lichtverschmutzung
/seiten/tipps.phpEmpfehlungen für eine umweltfreundliche Beleuchtung
/dokumente/Stellungnahme_Starl...New window Stellungnahme zu Mega-Satellitenkonstellationen window External Globe at Night 2022
/seiten/aktuell/aktuell_2017.php› weitere News
/seiten/seite2.phpMehr über Lichtverschmutzung
/seiten/natur.phpEinfluss auf Mensch und Natur
/seiten/tipps.phpTipps & Empfehlungen für eine umweltfreundliche Beleuchtung
/seiten/sternenparks/sternenpa...International Dark Sky Reserve Naturpark Westhavelland
/seiten/sternenparks/idsp_eife...International Dark Sky Park Nationalpark Eifel
/seiten/sternenparks/idsr_rhoe...International Dark Sky Reserve Rhön
/seiten/mehr.phpWeitere Infos & Links
/seiten/plakate.phpWanderausstellung und Plakate
/seiten/karten.phpLichtverschmutzungskarten von Mitteleuropa
/symposium_2011/New window Dark Sky Symposium 2011
/symposium_2022/New window Dark Sky Symposium 2022
http://www.home.uni-osnabrueck...New window External Subdomain Astronomy-Online
/seiten/natur.phpweitreichende ökologische Konsequenzen window External IMG-ALT VdS window External Vereinigung der Sternfreunde
/seiten/seite2.phpTrivial anchor text
hier IMG-ALT nach oben

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
HTTP header
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
(Somewhat important)
The page response time is excellent with 0.06 seconds.
This page only loads 1 CSS files. That's ok.
This page does not require any JavaScript files.
The file size of the HTML document is fine (15 kB).

HTTP Response Header

content-typetext/html; charset=UTF-8
dateTue, 07 Nov 2023 10:31:51 GMT

External factors

(Nice to have)
This website is not classified "for adult only".
This website has excellent links from other websites.
This page has backlinks from 352 referring domains.
This page has 7,430 backlinks.
This page has backlinks from 310 different ip addresses.
Facebook popularity
(Somewhat important)
The page has 0 shares and comments on Facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Links from Wikipedia

No links from Wikipedia were found.

Search preview
Dark Sky - Initiative gegen Lichtverschmutzung
Fachgruppe Dark Sky - Initiative gegen Lichtverschmutzung

Most important keywords

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

Dark Sky64%Check
künstliches Licht60%Check
Fachgruppe DARK SKY60%Check
Initiative gegen Lichtverschmutzung57%Check
International Dark Sky54%Check
Dark Sky Symposium54%Check

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