Overview of the SEO Check
Meta information
55% 
Page quality
62% 
Page structure
79% 
Link structure
71% 
Server
45% 
External factors
6% 
SEO Score
Response time
0.25 s
File size
24.50 kB
Words
539
Media files
3
Number of links
16 internal / 268 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
M57 Startseite
The page title is too short. (132 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
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: de
Server location: United States of America
The language is not specified in the HTML markup.
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)
No doctype markup was found.
Favicon
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

No meta tags were found.

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Page quality

Content
(Critically important)
This page contains 539 words. That's ok.
7.4% of the text are stop words.
The page contains a listing, which indicates a good text layout.
4 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 10.43 words is good.
Frames
(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 amount of tags is very high (50). We recommend using a maximum of 11 tags for this page.
The following tag is repeated too often: astronomie:
Image SEO
(Somewhat important)
2 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
https://www.m57.de/images/globe2.gifNo alt attribute providedrund um die Welt
https://www.m57.de/images/9901a-80.jpgNo alt attribute provided
https://www.m57.de/images/abstand.gifspace

Page structure

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

Heading structure

Heading levelContent
H2 und weiter ins Netz:
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 too many external links (268) on this page.
LinkAttributesAnchor text
http://www.m57.de/sat/index.htmlSubdomain No Text
https://www.m57.de/Messier.htmlM57
https://www.m57.de/Messier.htmlText duplicate A-TITLE M57
https://www.m57.de/ca-cert.crtca-cert
https://www.m57.de/root.crlroot
https://www.m57.de/server.crlserver
https://www.m57.de/service.crlservice
https://www.m57.de/cobalt.gpgcobalt
https://github.com/cobalt-codeExternal cobalt-code
https://www.m57.de/pattern.htmlPattern
/Bilder/moon.JPGaus der Hand geschossen
/Bilder/moon2.JPGmit Stativ und sorgfältig scharf gestellt
/Bilder/sonne-clip.jpgLunt LS60T CaK
https://www.google.de/External Subdomain Google
https://de.wikipedia.org/External Subdomain Wikipedia
https://leo.org/External leo.org
https://www.web.de/External Subdomain web.de
https://www.gmx.de/External Subdomain GMX
https://www.hotmail.de/External Subdomain hotmail
https://mail.google.com/External Subdomain G(oogle)-Mail
https://www.youtube.com/External Subdomain youtube
https://www.youtube.com/watch?...External Subdomain AP
https://www.bahn.de/External Subdomain bahn.de
https://www.vrr.de/de/fahrplan...External Subdomain vrr.de (fahrplan)
https://www.adac.de/External Subdomain ADAC
https://www.xing.com/External Subdomain openbc/xing
https://www.linkedin.com/External Subdomain linkedin
https://facebook.com/External facebook
https://twitter.com/External twitter
https://sourceforge.net/index.phpExternal sourceforge
https://github.com/exploreExternal github
https://maps.google.de/External Subdomain Google Maps
https://www.map24.de/External Subdomain map24
https://www.viamichelin.de/External Subdomain viamichelin
https://www.verkehrsinfo.de/External Subdomain verkehrsinfo.de
https://www.rp-online.de/app/s...External Subdomain rheinische Post
https://www.wdr.de/themen/verk...External Subdomain WDR
https://www.swr3.de/info/verke...External Subdomain SWR 3
https://www.wetter.com/External Subdomain Wetter.com
https://www.dwd.de/External Subdomain Deutscher Wetterdienst
https://www9.dw-world.de/europ...External Subdomain Deutsche Welle
https://www.windfinder.com/External Subdomain Windfinder
https://spaceweather.com/External Spaceweather.com
https://wikisky.org/External wikisky.org
https://eol.jsc.nasa.gov/HDEV/External Subdomain ISS live
https://www.astrotreff.de/External Subdomain astrotreff.de
https://www.astronomie.de/External Subdomain astronomie.de
https://www.marinetraffic.com/External Subdomain Marinetraffic
https://www.flightradar24.com/External Subdomain flightradar24
https://planefinder.net/External planefinder
https://www.radarvirtuel.com/External Subdomain radarvirtuel
https://news.google.de/External Subdomain Text duplicate Google
https://de.news.yahoo.com/External Subdomain Yahoo
https://www1.wdr.de/themen/inf...External Subdomain WDR-Nachrichten
https://www.heise.de/newsticker/External Subdomain Heise
https://www.zdnet.de/news/External Subdomain zdnet.de
https://silicon.de/External silicon.de
https://www.theregister.co.uk/External Subdomain the register
https://slashdot.org/External slashdot
https://www.tomshardware.com/d...External Subdomain Tom's Hardware
https://blog.fefe.de/External Subdomain fefe
https://www.lawblog.de/External Subdomain lawblog
https://netzpolitik.org/External netzpolitik
https://www.bildblog.de/External Subdomain bildblog
https://faktencheck.afp.com/listExternal Subdomain afp-faktencheck
https://www.deutschlandradio.d...External Subdomain DLF
https://www.dradio.de/streamin...External Subdomain DR-Wissen
/radio-streams/einslive.m3ueins Live
/radio-streams/swr3.m3uSWR3
/radio-streams/wdr2.m3uWDR2
/radio-streams/radiobochum.m3uRadio Bochum
https://www.radiobochum.de/External Subdomain Text duplicate Radio Bochum
https://www.swr3.de/External Subdomain Text duplicate SWR 3
https://www.deutschlandfunk.de/External Subdomain Text duplicate DLF
https://www.deutschlandfunknov...External Subdomain DLF nova
https://www.br.de/radio/bayern...External Subdomain Bayern 2
https://www.welt.de/External Subdomain Welt
https://www.stern.de/External Subdomain Stern
https://www.spiegel.de/External Subdomain Spiegel
https://www.focus.de/External Subdomain Focus
https://www.time.com/External Subdomain time magazine
https://www.newsweek.com/External Subdomain newsweek
https://www.telegraph.co.uk/External Subdomain the telegraph
https://www.guardian.co.uk/External Subdomain the guardian
https://www.independent.co.uk/External Subdomain the independent
https://www.bild.de/External Subdomain Bild
https://www.express.de/External Subdomain Express
https://www.faz.de/External Subdomain FAZ
https://www.rnd.de/External Subdomain RND
https://www.tagesspiegel.de/External Subdomain Tagesspiegel
https://www.zeit.de/External Subdomain die Zeit
https://www.sueddeutsche.de/External Subdomain Süddeutsche
https://www.nzz.ch/External Subdomain Neue Züricher
https://www.oe24.at/External Subdomain OE24
https://www.wienerzeitung.at/External Subdomain Wiener Zeitung
https://kurier.at/External Kurier
https://www.waz.de/External Subdomain WAZ
https://www.rp-online.de/External Subdomain Rheinische Post
https://www.rundschau-online.de/External Subdomain kölnische Rundschau
https://www.ksta.de/External Subdomain Kölner Stadtanzeiger
https://www.thesun.co.uk/External Subdomain The Sun (UK)
https://www.mirror.co.uk/External Subdomain The Mirror (UK)
https://www.dailymail.co.uk/ho...External Subdomain Daily Mail (UK)
https://nypost.com/External New York Post (US)
https://www.heise.de/ctExternal Subdomain c't
https://www.heise.de/ixExternal Subdomain ix
https://www.linux-magazin.de/External Subdomain linux-magazin
https://www.spektrum.de/External Subdomain Spektrum
https://www.spektrum.de/astron...External Subdomain Serne und Weltraum
https://www.handelsblatt.com/External Subdomain Handelsblatt
https://www.manager-magazin.de/External Subdomain Manager-Magazin
https://www.finanzen.net/External Subdomain finanzen.net
https://www.ntv.de/External Subdomain n-tv
https://www.n24.de/External Subdomain N24
https://de.euronews.com/External Subdomain euronews
https://cnn.com/External CNN
https://www.bbc.co.uk/worldser...External Subdomain BBC
https://www.ard.de/External Subdomain ARD
https://www.zdf.de/External Subdomain ZDF
https://www.wdr.de/External Subdomain Text duplicate WDR
https://www.mdr.de/External Subdomain MDR
https://www.swr.de/External Subdomain SWR
https://www.arte.tv/External Subdomain arte
https://www.3sat.de/External Subdomain 3sat
https://www.rtl.de/External Subdomain RTL
https://www.vox.de/External Subdomain VOX
https://www.rtl2.de/External Subdomain RTL 2
https://www.rtlnitro.de/External Subdomain Text duplicate RTL
https://www.sat1.de/External Subdomain Sat1
https://www.pro7.de/External Subdomain Pro7
https://www.kabel1.de/External Subdomain Kabel1
https://www.alternate.de/External Subdomain Alternate
https://www.conrad.de/External Subdomain Conrad
https://www.jacob-electronic.de/External Subdomain Jacob
https://www.servershop24.de/External Subdomain ServerShop24.de
https://www.harlander.com/External Subdomain Harlander
https://www.gekko-computer.de/External Subdomain Gekko Computer
https://www.itsco.de/External Subdomain itsco
https://www.serverschmiede.com/External Subdomain serverschmiede
https://www.servermind.de/External Subdomain servermind
https://www.2nd-source.de/External Subdomain 2nd-source
https://www.reichelt.de/External Subdomain Reichelt
https://www.watterott.com/External Subdomain Watterott
https://www.flikto.de/External Subdomain Flikto
https://www.pollin.de/External Subdomain Pollin
https://www.teleskop-express.de/External Subdomain teleskop-express
https://www.astroshop.de/External Subdomain astroshop
https://www.baader-planetarium...External Subdomain baader-planetarium
https://www.amazon.de/External Subdomain Amazon
https://www.audible.de/External Subdomain audible
https://www.ebay.de/External Subdomain ebay
https://www.kernel.org/External Subdomain Kernel.org
https://www.tldp.org/External Subdomain The Linux Documentation Project
http://www.distrowatch.com/External Subdomain Distrowatch
https://www.debian.org/External Subdomain debian
https://www.canonical.com/External Subdomain Canonical
http://www.ubuntu.com/External Subdomain ubuntu
http://www.redhat.com/External Subdomain redhat
https://www.centos.org/External Subdomain CentOS
https://linux.web.cern.ch/linux/External Subdomain Scientific
https://seven.centos.org/External Subdomain CentOS7
https://wiki.centos.org/External Subdomain Wiki
https://twitter.com/centos/External Twitter
https://mirror.netcologne.de/External Subdomain Net-Cologne
https://ftp.gwdg.de/pub/linux/External Subdomain GWDG
https://ftp.tu-chemnitz.de/pub...External Subdomain TU Chemnitz
https://fedoraproject.org/External Fedora
https://fedoraproject.org/wiki...External Bumblebee
https://fedoraproject.org/wiki...External Extras
https://de.wikipedia.org/wiki/RPMExternal Subdomain RPM
https://fedoraproject.org/wiki...External EPEL
https://rpmfusion.org/External RPM-Fusion
https://rpm.livna.org/External Subdomain Livna
https://bumblebee-project.org/External Text duplicate Bumblebee
https://www.openwrt.org/External Subdomain OpenWRT
https://www.dd-wrt.com/site/indexExternal Subdomain DD-WRT
https://www.openhub.net/p/freewrtExternal Subdomain FreeWRT
https://de.wikipedia.org/wiki/...External Subdomain :
https://www.arduino.cc/External Subdomain Arduino.cc
https://www.arduino.org/External Subdomain Arduino.org
https://www.pjrc.com/teensy/External Subdomain Teensy
https://www.pjrc.com/teensy/td...External Subdomain Teensyduino
https://www.adafruit.com/External Subdomain Adafruit
https://www.mikrocontroller.net/External Subdomain mikrocontroller.net
https://www.raspberrypi.org/External Subdomain Raspberry Pi
https://de.wikipedia.org/wiki/...External Subdomain Text duplicate Wikipedia
https://www.perl.org/External Subdomain Perl
https://www.cpan.org/External Subdomain cpan.org
http://strawberryperl.com/External Strawberry
https://www.activestate.com/pr...External Subdomain Active-State
https://php.net/External PHP
https://selfphp.de/External SelfPHP
https://w3.org/External w3.org
https://selfhtml.org/External SelfHTML
https://ssl-config.mozilla.org/External Subdomain Mozilla SSL-Config
https://tlsprofiler.danielfett...External Subdomain TLS-Profiler
https://www.ssllabs.com/ssltest/External Subdomain Qualsys SSL-Labs
https://www.mozilla.org/External Subdomain mozilla.org
https://www.mozilla.org/projec...External Subdomain firefox
https://www.mozilla.org/projec...External Subdomain thunderbird
https://www.apache.org/External Subdomain apache.org
https://httpd.apache.org/External Subdomain httpd
https://tomcat.apache.org/External Subdomain tomcat
https://directory.apache.org/s...External Subdomain directory studio
https://spamassassin.apache.org/External Subdomain spamassassin
https://sourceforge.net/External Text duplicate sourceforge
https://roundcube.net/External Roundcube Mail
https://www.nomachine.com/External Subdomain NoMachine NX
https://www.teamviewer.com/External Subdomain Teamviewer
https://www.realvnc.com/External Subdomain Real VNC
https://www.uvnc.com/External Subdomain Ultra VNC
https://www.tightvnc.com/External Subdomain Tight VNC
https://de.wikipedia.org/wiki/...External Subdomain VNC (Wikipedia)
https://de.wikipedia.org/wiki/...External Subdomain Kryptographie:
https://de.wikipedia.org/wiki/...External Subdomain RSA-Verfahren
https://www.openssl.org/External Subdomain openssl
https://www.truecrypt.org/External Subdomain truecrypt
https://www.gnupg.org/External Subdomain gnugpg
https://www.tenable.com/produc...External Subdomain Nessus
https://wireshark.org/External Wireshark
https://www.videolan.org/vlc/External Subdomain VLC
https://www.kodi.tv/External Subdomain Kodi (ex. XBMC)
https://www.mplayerhq.hu/External Subdomain mplayer
https://audacity.sourceforge.net/External Subdomain Audacity
https://www.stellarium.org/External Subdomain Stellarium
https://celestia.space/External Celestia
https://www.stark-labs.com/neb...External Subdomain Nebulosity
https://de.wikipedia.org/wiki/...External Subdomain Virtualisierung
https://xen.org/External Home
https://kvm.qumranet.com/kvmwikiExternal Subdomain Project Wiki
https://kvm.qumranet.com/kvmwikiExternal Subdomain download (sf.net)
https://www.vmware.com/External Subdomain VMware.com
https://www.virtualbox.org/External Subdomain VirtualBox.org
https://www.virtualbox.org/wik...External Subdomain (Download)
https://www.oracle.com/External Subdomain Oracle
https://www.mysql.com/External Subdomain MySQL
https://mariadb.org/External MariaDB
https://www.phpmyadmin.net/External Subdomain phpMyAdmin
http://www.postgresql.org/External Subdomain PostgreSQL
https://www.nvidia.com/External Subdomain nVidia
https://www.nvidia.de/Download...External Subdomain Treiber
https://download.nvidia.com/XF...External Subdomain download
https://www.amd.com/External Subdomain AMD
https://ati.amd.com/support/dr...External Subdomain Text duplicate Treiber
https://www.qlogic.com/External Subdomain Qlogic
https://www.emulex.com/External Subdomain Emulex
https://www.siliconimage.com/External Subdomain SiliconImage
https://www.adaptec.com/External Subdomain Adaptec
https://www.icp-vortex.com/External Subdomain ICP
https://www.3ware.com/3ware_ho...External Subdomain 3ware
https://www.lsi.com/External Subdomain LSI
https://www.infortrend.com/External Subdomain Infortrend
https://www.easyraid.com/External Subdomain easyRAID
https://www.synology.com/External Subdomain Synology
https://www.qnap.com/External Subdomain QNAP
https://www.samsung.com/global...External Subdomain Samsung
https://www.seagate.com/External Subdomain Seagate
http://www.maxtor.com/External Subdomain Maxtor
https://www.westerndigital.com/External Subdomain Western Digital
https://www.marvell.com/External Subdomain Marvell
https://www.broadcom.com/External Subdomain Broadcom
https://www.cisco.com/External Subdomain Cisco
http://www.linksys.com/External Subdomain Linksys
https://www.dlink.com/External Subdomain D-Link
https://www.netgear.com/External Subdomain Netgear
https://www.infoblox.com/External Subdomain InfoBlox
https://www.hpe.com/External Subdomain HPE
https://h10145.www1.hpe.com/do...External Subdomain My Networking
https://www.intel.com/External Subdomain Intel
https://www.amd.com/External Subdomain Text duplicate AMD
https://www.motorola.com/External Subdomain Motorola
https://www.asus.com/External Subdomain Asus
https://www.gigabyte.com/External Subdomain Gigabyte
https://www.asrock.com/External Subdomain Asrock
https://www.hpe.com/External Subdomain Text duplicate HPE
https://h18004.www1.hpe.com/pr...External Subdomain SPP
https://www.ibm.com/External Subdomain IBM
https://www.fujitsu-siemens.com/External Subdomain fujitsu-siemens
https://www.sun.com/External Subdomain sun
https://www.dell.com/External Subdomain dell
https://linux.dell.com/External Subdomain linux
https://linux.dell.com/repo/ha...External Subdomain hardware
https://www.maxdata.com/External Subdomain maxdata
https://www.supermicro.com/External Subdomain supermicro

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.m57.de/"
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
The web server version is sent within the HTTP header.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time is excellent with 0.25 seconds.
This page does not require any CSS files.
This page does not require any JavaScript files.
The file size of the HTML document is fine (25 kB).

HTTP Response Header

NameValue
dateFri, 27 Sep 2024 00:20:05 GMT
serverApache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips
last-modifiedWed, 13 Mar 2024 21:57:29 GMT
etag"61f0-61391dc64d916"
accept-rangesbytes
content-length25072
content-typetext/html; charset=UTF-8
statuscode200
http_versionHTTP/1.1

External factors

This page has only a few links from other websites.
This page only has backlinks from 2 referring domains.
This page only has 35 backlinks.
This page only has few backlinks from 2 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Search preview

www.m57.de
M57 Startseite

Most important keywords

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

KeywordResultRecheck
M5762%Check
Seite46%Check
net43%Check
Netz43%Check
Linux39%Check
Astronomie39%Check
Hardware39%Check
Computer39%Check
Arduino39%Check
Internet39%Check

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