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Mathematische-basteleien.de - SEO Checker

Overview of the SEO Check

Meta information

74%

Page quality

44%

Page structure

58%

Link structure

65%

Server

91%

External factors

94%

SEO Score

SEO Score Widget

Response time

0.06 s

File size

62.30 kB

Words

1229

Media files

Number of links

358 internal / 0 external

Task list of SEO Improvements 6 Tasks

Add a H1 heading to this page.Very important!
Use good headings on the page.Very important!
Fix errors regarding the language markup of your web page.Very important!
Improve the text of the meta description.Important!
Use good alternative descriptions (alt attributes) for your images.Important!
Add a viewport tag.Tip!

View all

Meta specifications 74% achieved

Title

(Critically important)

Mathematische Basteleien

The length of the page title is perfect. (236 pixels out of 580 max pixel length)

There are no duplicate words in the title

Meta Title

Meta description

(Critically important)

Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes. English/German.

The meta description is too long: 1089 pixels from max. 1000 pixels. Optimize description

Meta Description

Crawlability

(Critically important)

There are no problems in accessing the website.

Search Engine Crawlers

Canonical URL

(Important)

No canonical link is specified.

Canonical Tag

Language

(Somewhat important)

Language detected in text: de

Server location: Germany

The language is not specified in the HTML markup.

Declaring language in HTML

Alternate/Hreflang Links

(Somewhat important)

There are no alternate links specified on this page.

Hreflang

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.

Meta Tags

Domain

(Somewhat important)

The domain name is very long.

The domain is no subdomain.

The domain does not contain non-latin characters.

Domain for SEO

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.

SEO-friendly URLs

Charset encoding

(Somewhat important)

The character encoding is not specified in the HTTP header.

The charset encoding (ISO-8859-1) is set correctly.

Character Encoding

Doctype

(Nice to have)

The doctype HTML 5 is set correctly.

The doctype is placed at first in the HTML code.

HTML Doctype

Favicon

(Nice to have)

The favicon is linked correctly.

Favicon

Meta tags

Name	Value
Author	J?rgen K?ller
GENERATOR	Mozilla/4.72 [en] (WinNT; I) [Netscape]
Description	Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes. English/German.
KeyWords	Mathematische Basteleien
Content-Type	text/html; charset=UTF-8

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Page quality 44% achieved

Content

(Critically important)

No paragraphs were detected.

This page contains 1229 words. That's ok.

4.8% of the text are stop words.

Keywords used in the page title are also used in the page content. That's good!

No placeholders texts or images were found.

Content is King

Frames

(Critically important)

This page does not use a frameset.

Frames and framesets

Mobile optimization

(Somewhat important)

No viewpoint tag is provided.

No Apple touch icon is specified.

This page does not require any JavaScript files.

Mobile Optimization

Bold and strong tags

(Somewhat important)

The usage of strong and bold tags is perfect. We recommend the use of up to 25 tags for this page.

Strong and Bold Tags

Image SEO

(Somewhat important)

3 images have no alt attribute. The content of alt attributes is used by search engines.

Image SEO

There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.

Social Sharing

Additional markup

(Nice to have)

No additional page markup was found.

HTTPS

(Somewhat important)

The HTTPS protocol for secure data transmission is not used.

HTTPS

Media list

URL	Alt attribute	Title
/strich.gif	No alt attribute provided
/strich2.gif	No alt attribute provided
/email.gif	No alt attribute provided

Page structure 58% achieved

H1 heading

(Critically important)

There is no H1 heading specified.

H1-H6 headings

Headings

(Important)

There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

H1-H6 headings

Heading structure

No headings were found.

Link structure 65% achieved

Internal links

(Important)

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.

Internal Linking

External links

(Nice to have)

There are no external links on this page.

External Links

Found links on this page

Link	Attributes	Anchor text
/flexagons.htm		Flexagons
/tetraflexagons.htm		Tetraflexagons
/flexatubes.htm		Flexatube
/magiccard.htm		Magic Card
/froebelsstar.html		Froebel Star
/bascettastar.htm		Bascetta Star
/sonobestar.htm		Sonobe Star
/kusudamastar.htm		Kusudama Star
/kaleidocycles.htm		Kaleidocycles
/strip.html		A Strip of Paper Only
/network.html		Monogram
/oricube.htm		Origami Cube
/paper_pigeon.html		Paper Pigeon
/paper_ship.htm		Paper Boat
/fortune_teller.htm		Fortune Teller
/purse.htm		Paper Purse
/cup.htm		Paper Cup
/bag.htm		Magic Bag
/basket.htm		Paper Basket
/banger.htm		Paper Banger
/frog.htm		Origami Frog
/heartbasket.htm		Heart Basket
/handkerchiefmouse.htm		Handkerchief Mouse
/house.html		House of Santa Claus
/spirographs.htm		Spirograph
/somacube.htm		Soma Cube
/pentominos.htm		Pentominos
/tetracube.htm		Tetracube
/hexominos.htm		Hexominos
/cube_its.htm		Happy Cube
/rubikscube.htm		Rubik's Cube
/snakecube.htm		Snake Cube
/magiccube.htm		Magic Cube
/cubepuzzle.htm		Picture Cube Puzzle
/puzzle_cube.htm		Classic Puzzle Cube
/dice.htm		Dice
/macmahon.htm		Mac Mahon's Coloured Cubes
/cubeone2.htm		Cube One
/tangrams.htm		Tangram
/magics.htm		Rubik's Magic
/jacob.htm		Jacob's Ladder
/devilsknot.htm		Burr Puzzle
/15puzzle.htm		15 Puzzle
/dominos.htm		Domino Puzzles
/solitaire.htm		Peg Solitaire
/iamonds.htm		Polyiamonds
/polyhexes.htm		Polyhexes
/chronograms.htm		Chronograms
/palindromes.html		Numeric Palindromes
/magsquare.htm		Magic Square
/magichexagon.htm		Magic Hexagon
/kaprekar.htm		Kaprekar Number
/multiplication.htm		Multiplication
/romannumerals.htm		Roman Numerals
/triangularnumber.htm		Triangular Numbers
/squarenumber.htm		Square Numbers
/cubenumber.htm		Cube Numbers
/mandel_set.htm		Mandelbrot Set
/stereogram.htm		Stereogram
/square.htm		Square
/taxicabgeometry.htm		Taxicab Geometry
/eggcurves.htm		Egg Curves
/spiral.htm		Spirals
/heart.htm		Heart Curves
/arcfigures.htm		Arc Figures
/formula.htm		Illustrations of Formulas
/stars.htm		Stars
/geocentre.htm		Geographic Centre
/tetrahedron.htm		Tetrahedron
/cube.htm		Cube
/cuboctahedron.htm		Cuboctahedron
/hypercube.htm		Hypercube
/hypertetrahedron.htm		Hypertetrahedron
/pyramid.htm		Pyramid
/magnets.htm		Figures made of 24 bar magnets
/ladder.htm		Ladder Problems
/oscillation.htm		Oscillation by Friction
/flute.htm		Willow Whistle
/catscradle.htm		String Game for Two
/kolams.htm		Kolams and Sona
/link.htm		Links
/wonneberg2.htm		Gdansk-Ujescisko
/homepage1999e.htm		Homepage 1999 - how it started
/imprint.htm		Imprint
/flexagon.htm	Text duplicate	Flexagons
/tetraflexagon.htm		Tetraflexagon
/hexahexaflexagon.htm		Hexahexaflexagon
/flexatube.htm	Text duplicate	Flexatube
/hflexagon.htm		Magische Karte
/froebelstern.htm		Fröbelstern
/bascetta_stern.htm		Bascetta-Stern
/sonobestern.htm		Sonobe-Stern
/kusudamastern.htm		Kusudama-Stern
/kaleidozyklen.htm		Kaleidozyklen
/streifen.htm		Nur ein Streifen Papier
/geflecht.htm		Monogramm
/oriwuerfel.htm		Origami-Würfel
/papier_taube.html		Papiertaube
/papier_schiff.htm		Papierschiff
/himmel_und_hoelle.htm		Himmel und Hölle
/portmonee.htm		Papier-Portmonee
/becher.htm		Papierbecher
/tuete.htm		Zaubertüte
/brief.htm		Pulverbriefchen
/korb.htm		Körbchen
/knalltuete.htm		Knalltüte
/teufelskopf.htm		Teufelskopf
/frosch.htm		Origami-Frosch
/herzkoerbchen.htm		Herzkörbchen
/kasten.htm		Kasten
/flechten.htm		Körper flechten
/taschentuchmaus.htm		Taschentuchmaus
/fuenfeckstern.htm		Gefalteter Fünfeckstern
/nikolaushaus.htm		Haus des Nikolaus
/tictactoe.htm		Tic-Tac-Toe
/spirograph.htm	Text duplicate	Spirograph
/sudoku.htm		Sudoku
/str8ts.htm		Str8ts
/kaesekaestchen.htm		Vereinfachtes Käsekästchen
/somawuerfel.htm		Somawürfel
/pentomino.htm	Text duplicate	Pentominos
/tetrawuerfel.htm		Tetrawürfel
/hexomino.htm	Text duplicate	Hexominos
/cube_it.htm	Text duplicate	Happy Cube
/zauberwuerfel.htm		Zauberwürfel
/miniwuerfel.htm		Rubiks Miniwürfel
/schlange.htm		Schlangenwürfel
/magwuerfel.htm		Magischer Würfel
/bilderwuerfel.htm		Bilderwürfel
/wunderwuerfel.htm		Zerlegbarer Würfel
/spielwuerfel.htm		Spielwürfel
/macmahons.htm		MacMahons Farbwürfel
/shinsei.htm		The Shinsei Miracle
/shinsei2.htm		The Shinsei Mystery
/cubeone.htm	Text duplicate	Cube One
/tangram.htm	Text duplicate	Tangram
/tetragon.htm		Tetragon
/magisches_ei.htm		Magisches Ei
/magic.htm	Text duplicate	Rubik's Magic
/jakob.htm		Jakobsleiter
/teufelsknoten.htm		Teufelsknoten
/15erspiel.htm		Fünfzehnerspiel
/domino.htm	Text duplicate	Domino Puzzles
/triomino.htm		Triominos
/solitaer.htm		Solitär
/hanoi.htm		Turm von Hanoi
/iamond.htm	Text duplicate	Polyiamonds
/polyabolos.htm		Polyabolos
/polywaben.htm		Polywaben
/kugeln.htm		Zerlegbare Kugeln
/quadrat_legen.htm		Quadrate legen
/sternpuzzle.htm		Stern-Puzzle
/elefant.htm		Elefanten-Puzzle
/irrgarten.htm		Irrgarten und Labyrinth
/tetraone.htm		Tetra One
/tetraederpuzzles.htm		Tetraeder-Puzzles
/kreuz.htm		Kreuz-Puzzles
/wald.htm		Bellmans Problem Verirrt im Wald
/chronogramm.htm		Chronogramme
/palindrom.htm		Zahlen-Palindrome
/magquadrat.htm		Magisches Quadrat
/magischessechseck.htm		Magisches Sechseck
/kaprekarzahl.htm		Kaprekarzahl
/symbolraetsel.htm		Symbolrätsel
/multiplikation.htm		Multiplikation
/roemisch.htm		Römische Ziffern
/tetrade.htm		Tetraden
/dreieckszahlen.htm		Dreieckszahlen
/quadratzahlen.htm		Quadratzahlen
/kubikzahlen.htm		Kubikzahlen
/potenzzahlen.htm		Potenzzahlen
/primzahl.htm		Primzahlen
/fakultaet.htm		Fakultäten
/geometrisch.htm		Geometrische Folgen und Reihen
/tetraederzahl.htm		Tetraederzahlen
/dualzahl.htm		Zweiersystem
/trio.htm		Trio und weitere Zahlenspiele
/binomi.htm		Binomische Formeln
/goldenerschnitt.htm		Goldener Schnitt
/lotto.html		13 983 816
/pascaldreieck.htm		Pascalsches Dreieck
/mittelwert.htm		Klassische Mittelwerte
/figuriertezahlen.htm		Figurierte Zahlen
/quersumme.htm		Quersumme
/kehrwert.htm		Kehrwert
/koerper.htm		Körper in der Algebra
/kettenbruch.htm		Kettenbruch
/verhaeltnis.htm		Verhältnisse und Proportionen
/abakus.htm		Chinesischer Abakus
/apfelmaennchen.htm		Apfelmännchen
/huepfer.htm		Hüpfer
/gameoflife.htm		Game of Life
/stereogramm.htm		Stereogramm
/ameise.htm		Langton-Ameisen
/alterberechnen.htm		Alter berechnen
/dreieck.htm		Dreieck
/quadrat.htm		Quadrat
/fuenfeck.htm		Fünfeck
/sechseck.htm		Sechseck
/siebeneck.htm		Siebeneck
/achteck.htm		Achteck
/neuneck.htm		Neuneck
/zehneck.htm		Zehneck
/elfeck.htm		Elfeck
/zwoelfeck.htm		Zwölfeck
/30eck.htm		30-Eck
/vieleck.htm		Vieleck
/pentagramm.html		Pentagramm
/hexagramm.html		Hexagramm
/heptagramm.html		Heptagramm
/oktagramm.html		Oktagramm
/nonagramm.html		Nonagramm
/polygramm.html		Polygramm
/adreieck.htm		Allgemeines Dreieck
/rdreieck.htm		Rechtwinkliges Dreieck
/gdreieck.htm		Gleichschenkliges Dreieck
/halbquadrat.htm		Gleichsch.-rechtw. Dreieck
/30_60_90_dreieck.htm		30-60-90-Dreieck
/3_4_5_dreieck.htm		3-4-5-Dreieck
/aviereck.htm		Allgemeines Viereck
/hoehen.htm		Höhen im Dreieck
/parallelogramm.htm		Parallelogramm
/rechteck.htm		Rechteck
/raute.htm		Raute
/drachen.htm		Drachenviereck
/trapez.htm		Trapez
/sehnenviereck.htm		Sehnenviereck
/tangentenviereck.htm		Tangentenviereck
/doppelquadrat.htm		Doppelquadrat
/viereck.htm		Hierarchie der Vierecke
/papierformat.htm		Papierformat A4
/zaehl_figuren.htm		Figuren in einer Figur zählen
/parkett.htm		Homogene Parkettierungen
/parkett2.htm		Parkettierung mit Vielecken
/parkett3.htm		Begegnungen mit Parkettierungen
/propeller.html		Asymmetrischer Propeller
/dreiteilung.htm		Dreiteilung eines Winkels
/taxigeometrie.htm		Taxi-Geometrie
/gerade.htm		Geradengleichungen
/geobrett.htm		Geobrett
/kreisteile.htm		Kreisteile
/kreise_im_kreis.htm		Kreise im Kreis
/kreise_in_einer_figur.htm		Kreise in einer Figur
/kreisausschnitt.htm		Kreisausschnitt
/arbelos.htm		Arbelos
/salinon.htm		Salinon
/kreis.htm		Kreis
/ellipse.htm		Ellipse
/parabel.htm		Parabel
/hyperbel.htm		Hyperbel
/halbkreis.htm		Halbkreis
/2kreise.htm		Zweikreisfiguren
/formel.htm		Formeln im Bild
/ring.htm		Kreisring
/stern.htm		Sterne
/geomittelpunkt.htm		Geographischer Mittelpunkt
/gleichdick.htm		Gleichdick
/symmetrisch.htm		Achsen- und punktsymmetrische Figuren
/dreistrahlig.htm		Dreistrahlige Figuren
/vierstrahlig.htm		Vierstrahlige Figuren
/fuenfstrahlig.htm		Fünfstrahlige Figuren
/sechsstrahlig.htm		Sechsstrahlige Figuren
/siebenstrahlig.html		Siebenstrahlige Figuren
/achtstrahlig.htm		Achtstrahlige Figuren
/neunstrahlig.html		Neunstrahlige Figuren
/schwerpunkt.htm		Schwerpunkt von Figuren
/sangaku.htm		Sangaku
/kolam.htm		Kolams und Sona
/eilinien.htm		Ei-Linien
/spirale.htm		Spiralen
/archimedischespirale.htm		Archimedische Spirale
/herz.htm		Herzkurve
/acht.htm		Achtkurve
/glockenkurve.htm		Glockenkurven
/polarkoordinaten.htm		Kurven im Polarkoordinatensystem
/kettenlinie.html		Kettenlinie
/strophoide.htm		Gerade Strophoide
/kurven.htm		Einfach geschlossene Kurven
/sinus.htm		Sinusfunktion
/tangens.htm		Tangensfunktion
/exponentialfunktion.htm		Exponentialfunktion
/logarithmusfunktion.htm		Logarithmusfunktion
/sinh.htm		Sinus hyperbolicus
/epizykloide.htm		Epizykloide
/lissajous.html		Lissajous-Figur
/viviani.htm		Viviani-Kurve
/betrag.htm		Betragsfunktion
/kubisch.htm		Kubische Parabel
/fusspunktkurve.htm		Fußpunktkurven
/evolute.htm		Evolute
/platonisch.htm		Platonische Körper
/tetraeder.htm		Tetraeder
/wuerfel.htm		Würfel
/oktaeder.htm		Oktaeder
/pentagondodekaeder.htm		Pentagondodekaeder
/ikosaeder.htm		Ikosaeder
/keplerpoinsot.htm		Kepler-Poinsot-Körper
/archimedes.htm		Archimedische Körper
/tetraederstumpf.htm		Abgestumpftes Tetraeder
/abgestumpftesoktaeder.htm		Abgestumpftes Oktaeder
/abgestumpfterwuerfel.htm		Abgestumpfter Würfel
/kuboktaeder.htm		Kuboktaeder
/fussball.htm		Abgestumpftes Ikosaeder
/dodekaederstumpf.htm		Abgestumpftes Dodekaeder
/ikosidodekaeder.htm		Ikosidodekaeder
/rhombenkuboktaeder.htm		Kleines Rhombenkuboktaeder
/rhombenkuboktaeder2.htm		Großes Rhombenkuboktaeder
/rhombenikosidodekaeder.htm		Kleines Rhombenikosidodekaeder
/rhombenikosidodekaeder2.htm		Großes Rhombenikosidodekaeder
/schieferwuerfel.htm		Abgeschrägter Würfel
/schiefesdodekaeder.htm		Abgeschrägtes Dodekaeder
/triakistetraeder.htm		Triakistetraeder
/johnsonkoerper.htm		Johnson-Körper
/hyperkubus.htm		Hyperkubus
/hypertetraeder.htm		Hypertetraeder
/quader.htm		Quader
/parallelepiped.htm		Parallelepiped
/pyramide.htm		Quadratische Pyramide
/dreieckspyramide.htm		Dreiseitige Pyramide
/pyramidenstumpf.htm		Pyramidenstumpf
/deltaeder.htm		Deltaeder
/sterntetraeder.htm		Oktaederstern
/prisma.htm		Prisma
/rhombendodekaeder.htm		Rhombendodekaeder
/halbwuerfel.htm		Halbwürfel
/zylinder.htm		Zylinder
/halbzylinder.htm		Halbzylinder
/kegel.htm		Kegel
/kugel.htm		Kugel
/kugelteile.htm		Kugelteile
/halbkugel.htm		Halbkugel
/ellipsoid.html		Ellipsoid
/paraboloid.htm		Paraboloid
/hyperboloid.htm		Hyperboloid
/torus.htm		Torus
/weg.htm		Geodätische Linien
/bipyramide.htm		Bipyramide
/quadratischesantiprisma.html		Quadratisches Antiprisma
/magnet.htm		Körper aus 24 Stabmagneten
/leiter.htm		Leiter-Aufgaben
/uhr.htm		Uhren-Aufgaben
/flussueberqueren.htm		Flussüberquerungen
/extremwert.htm		Extremwertaufgaben
/zufluss.htm		Zufluss- und Abfluss-Aufgaben
/schwingung.htm		Schwingung durch Reibung
/floete.htm		Weidenflöte
/kaleidoskop.htm		Kaleidoskop
/fadenspiel.htm		Fadenspiel zu zweit
/schattenbild.htm		Schattenbilder
/stereobildpaar.htm		Stereobildpaare zeichnen
/muehle.htm		Mühlespiel
/kartoffeln.htm		Kartoffelaufgabe
/lexikon.htm		Wörter der Schulmathematik D/E
/gardner.htm		Gardners Bücher in Deutsch
/links.htm	Text duplicate	Links
/wonneberg.htm		Danzig-Wonneberg
/homepage1999.htm		Homepage 1999 - wie sie entstand
/impressum.htm		Impressum

Server configuration 91% achieved

HTTP redirects

(Critically important)

The checked page does not redirect to another URL.

WWW Redirect

HTTP header

(Important)

The web server version is sent within the HTTP header.

No X-Powered HTTP header is sent.

The web server transmits the web page (HTML) in compressed form.

HTTP headers

Performance

(Somewhat important)

The page response time is excellent with 0.06 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 (62 kB).

Page Speed

HTTP Response Header

Name	Value
date	Wed, 21 May 2025 07:29:43 GMT
server	Apache/2.4.62 (Debian)
last-modified	Mon, 05 May 2025 07:39:45 GMT
etag	"f94c-6345e9a98b96e-gzip"
accept-ranges	bytes
vary	Accept-Encoding
content-encoding	gzip
content-length	7664
content-type	text/html
statuscode	200
http_version	HTTP/1.1

External factors 94% achieved

Backlinks

(Critically important)

This page is referenced by wikipedia.

This page is very well linked from other websites.

This page has backlinks from 23 referring domains.

This page has 50 backlinks.

This page has backlinks from 13 different ip addresses.

Backlinks

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You can find more links using Wikipedia search

Robots.txt

No valid Robots.txt file was found.

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mathematische-basteleien.de

Mathematische Basteleien

Topics include Flexagon, Soma Cube, Pentominos, Cube-it, Rubik's Cube, Froebel's Star, Tangram, House of Santa Claus, Chronogram, Numeric Palindromes. English/German.

Most important keywords

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

Keyword	Result	Recheck
Mathematische	58%	Check
Basteleien	58%	Check
Mathematische Basteleien	58%	Check
Cube	46%	Check
Froebel	46%	Check
House	46%	Check
Santa	46%	Check
Claus	46%	Check
Soma	46%	Check
Pentominos	46%	Check
Rubik	46%	Check
Tangram	46%	Check
Numeric	46%	Check
Palindromes	46%	Check
Topics	46%	Check
Santa Claus	46%	Check
Soma Cube	46%	Check
Numeric Palindromes	46%	Check
Figuren	34%	Check
Paper	34%	Check
erweitert	34%	Check
Körper	34%	Check
Dreieck	34%	Check
Magic	34%	Check
Würfel	34%	Check

Show more keywords and terms

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Mathematische-basteleien.de - SEO Checker

Task list of SEO Improvements 6 Tasks

Meta specifications 74% achieved

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(Critically important)

(Important)

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