Nibbler SEO audit for www.sqrt.ch

Overall8.3

The overall score for this website.

Accessibility10.0

How accessible the website is to mobile and disabled users.

The following tests contribute to this score:

Experience8.3

How satisfying the website is likely to be for users.

The following tests contribute to this score:

Marketing5.0

How well marketed, and popular the website is.

The following tests contribute to this score:

Technology9.7

How well designed and built the website is.

The following tests contribute to this score:

Nibbler tested a sample of 5 pages from this website at 12:52 on 27 Mar 2023 (BST).

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Top priorities for website improvement

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  • Sign up for a Twitter account and make sure it is linked to from your site. (read more)
  • Add width and height attributes to all image tags. The width and height you specify should be the same as the source image. If you want to resize an image in the browser, use CSS. (read more)

Twitter0.0

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This website does not appear to be associated with a Twitter account.

  • This website did not contain a link to Twitter.
    • Sign up for a Twitter account and make sure it is linked to from your site.

Analytics0.0

Help

0% of pages use analytics

No Analytics SolutionNo

  • None of this website is using any recognised analytics software. It is still possible to gather a great deal of information from webserver logs, however complete visitor analysis requires client-side Javascript or an image not found here.
    • Consider a leading website analytics solution, such as WebTrends or Google Analytics.
  • Note that this test can only detect recognised analytics solutions. If an analytics solution is new, obscure or used in a non-standard way (e.g. it has been customised) it may not be detected.

Popularity1.0

Help

0Estimated monthly organic visitors

  • This website appears to have a very low number of monthly website visits each month

Source: Ahrefs

Images8.2

Help

91% of images have a clearly defined size

82 images are being resized by the browser

Amount of content9.0

Help

Rendering Chart...

  • This website has an average of 1,611 words per page. The amount of content on a website has been shown to correlate with its search engine ranking.

Amount of content discovered

PageCharactersWords
www.sqrt.ch/1061144
www.sqrt.ch/museum189093075
www.sqrt.ch/grafik144692262
www.sqrt.ch/tex2394338
www.sqrt.ch/radio151342236

Mobile10.0

Help

Mobile screenshot of www.sqrt.chTablet screenshot of www.sqrt.ch
  • All of this website appears to be optimised for viewing on a mobile phone or a tablet.

Media specific CSS detected

Server behaviour10.0

Help

Yes404 page

YesCompression

  • This website handles missing pages correctly by sending a 404 HTTP status code.
  • This website was served with GZIP encoding. This is very good because it reduces the loading time of a web page.
  • This website follows the best practice of using a permanent (HTTP 301) redirect between URLs with/without trailing slashes. This is ideal.
  • This website follows the best practice of using a permanent (HTTP 301) redirect from http://sqrt.ch to http://www.sqrt.ch. This is ideal.

Page titles10.0

Help

100% of pages have defined titles

0% of page titles are weak

  • All pages were found to use page titles appropriately. Page titles appear in search results and at the top of the browser's window when visiting the site. Appropriate page titles are particularly important for search engine optimisation.

Page titles

Headings10.0

Help

-effekte animation ausser barrier-grid beat bienvenue cantorbaum circles code colored conformal copyright curve-art description elektronische envelopes experiments externe formeln france fringes gibt grafiken graphics groups gutes hiq-stream html impressum kultur latex lines mathematical maurer models moir motion museum mutual nested nichts optische orthogonal oscillations physical physics pursuit radio rays rekursive rettungswelle rose roses routes sierpi ski-carpet some spirograph spotlight sqrt square squares string suche systemzeit teaching triangle uschungen vektorgrafiken vinyl

  • All pages were found to use defined headings. This is excellent as it allows visitors and search engines to summarise the content of webpages quickly. Correctly defined headings aid accessibility and are particularly important for search engine optimisation.

Page headings detail

URLHeadingLevel
www.sqrt.ch/Willkommen! Benvenuti! Bienvenue sur sqrt.ch !H1
www.sqrt.ch/«Es gibt nichts Gutes, ausser man tut es.»H2
www.sqrt.ch/Externe SucheH2
www.sqrt.ch/Cantorbaum mit QR CodeH2
www.sqrt.ch/QR CodeH2
www.sqrt.ch/Systemzeit:H3
www.sqrt.ch/museumThe Moiré MuseumH1
www.sqrt.ch/museumGroups of CirclesH2
www.sqrt.ch/museumColored RaysH2
www.sqrt.ch/museumBeat the MoiréH2
www.sqrt.ch/museumNested SquaresH2
www.sqrt.ch/museumBarrier-grid AnimationH2
www.sqrt.ch/museumCheckerboard PatternH2
www.sqrt.ch/museumOp ArtH2
www.sqrt.ch/museumEmergent SQRTH2
www.sqrt.ch/museumEquilateral TrianglesH2
www.sqrt.ch/museumHexagon GridH2
www.sqrt.ch/museumMiraculous TilesH2
www.sqrt.ch/museumNested Squares and CirclesH2
www.sqrt.ch/museumRose WindowsH2
www.sqrt.ch/museumSine LinesH2
www.sqrt.ch/museumLunometerH2
www.sqrt.ch/museumLuminescent CurvesH2
www.sqrt.ch/museumString ModelsH2
www.sqrt.ch/museumMaurer RosesH2
www.sqrt.ch/museumExperiments in Motion GraphicsH2
www.sqrt.ch/museumConformal MapH2
www.sqrt.ch/museumMoiré Fringes in Physics TeachingH2
www.sqrt.ch/museumSierpiński-CarpetH2
www.sqrt.ch/museumMathematical Curve-ArtH2
www.sqrt.ch/museumSome physical and mathematical routes to the descriptionH3
www.sqrt.ch/museumMutual Pursuit in a SquareH3
www.sqrt.ch/museumMutual Pursuit in a TriangleH3
www.sqrt.ch/museumSpotlight LinesH3
www.sqrt.ch/museumEnvelopesH3
www.sqrt.ch/museumOrthogonal OscillationsH3
www.sqrt.ch/museumSpirographH3
www.sqrt.ch/grafikVektorgrafikenH1
www.sqrt.ch/grafik Moiré-Effekte IH2
www.sqrt.ch/grafik Moiré-Effekte IIH2
www.sqrt.ch/grafik Optische TäuschungenH2
www.sqrt.ch/grafik Rekursive GrafikenH2
www.sqrt.ch/grafik Elektronische Blätter und HefteH2
www.sqrt.ch/grafik VariaH2
www.sqrt.ch/grafikMoiré-Effekt mit dem BildschirmH3
www.sqrt.ch/grafikKreise, Strecken und PunkteH3
www.sqrt.ch/grafikSchwebungH3
www.sqrt.ch/grafikStrahlen (sternförmige Objekte)H3
www.sqrt.ch/grafikGeschachtelte QuadrateH3
www.sqrt.ch/grafikEmergente Zeichen: «Linseneffekt»H3
www.sqrt.ch/grafikKurven und PfadeH3
www.sqrt.ch/grafikSchachbrettmusterH3
www.sqrt.ch/grafikDreieckmusterH3
www.sqrt.ch/grafikWabenstruktur (Hexagonnetz)H3
www.sqrt.ch/grafikCarreaux miraculeuxH3
www.sqrt.ch/grafikFensterrosen (rosettenartige Moirébilder)H3
www.sqrt.ch/grafikKlammern, Wellen und 3D-EffekteH3
www.sqrt.ch/grafikMaurer RosettenH3
www.sqrt.ch/grafikVerfolgungskurvenH3
www.sqrt.ch/grafikKonforme AbbildungenH3
www.sqrt.ch/grafikFading EffektH3
www.sqrt.ch/grafikGlass Muster und anderesH3
www.sqrt.ch/grafikAus der ‹openclipart›H3
www.sqrt.ch/grafikOptimierte Darstellung von PDF und SVG DokumentenH3
www.sqrt.ch/grafikEinige spezielle Vektor-RealisierungenH3
www.sqrt.ch/grafikFormeln in HTMLH3
www.sqrt.ch/grafikCopyright © SQRT.CH | IMPRESSUMH3
www.sqrt.ch/texArbeiten mit TEXH1
www.sqrt.ch/texWas ist LATEX?H2
www.sqrt.ch/texVorteile von LATEXH2
www.sqrt.ch/texAnleitungen zum BeginnenH2
www.sqrt.ch/texInstallation von LATEXH2
www.sqrt.ch/texBeispiele (Kodierung in utf-8)H2
www.sqrt.ch/texFormeln in HTMLH2
www.sqrt.ch/texCopyright © SQRT.CH | IMPRESSUMH3
www.sqrt.ch/radioRadiolinksH1
www.sqrt.ch/radioWiedergabeliste «Kultur»H2
www.sqrt.ch/radioKultur, Klassik & JazzH2
www.sqrt.ch/radioMythen um 5GH2
www.sqrt.ch/radioUKW abschalten?H2
www.sqrt.ch/radioRadio France et Radio France InternationaleH2
www.sqrt.ch/radioExcellent Radio StreamingH2
www.sqrt.ch/radioPetite liste pour les grandes ondes | Longwave ShortlistH2
www.sqrt.ch/radioVinyl, CD oder HiQ-Stream?H2
www.sqrt.ch/radio5G RundfunkH3
www.sqrt.ch/radioUltrakurze Gedanken zur aktuellen RettungswelleH3
www.sqrt.ch/radioVinylH3
www.sqrt.ch/radioCD/DVDH3
www.sqrt.ch/radioHiQ-StreamH3
www.sqrt.ch/radioCopyright © SQRT.CH | IMPRESSUMH3

Internal links10.0

Help

  • Every link tested appears to be well defined. This is good because well defined links help SEO and aid accessibility.

Meta tags10.0

Help

This is how this website will look in Google search listings:

SQRT.CH - Welcome!

www.sqrt.ch/

«Die Zahl ist das Wesen aller Dinge.» Pythagoras von Samos (ca. 570 bis ca. 490 v. d. Z.), griechischer Philosoph und Mathematiker.

  • All pages were found to include a meta description. This is good because search engines (like Google) show this text in search result pages.

Meta Tags (name attribute)

Page URLNameContent
www.sqrt.ch/viewportwidth=device-width, initial-scale=0.45
www.sqrt.ch/authorMartin Ambauen
www.sqrt.ch/copyrightMartin AMBAUEN, Zurich, Switzerland
www.sqrt.ch/keywordsQuadratwurzel, Quadrat, Wurzel, Square Root, Grafik, Vektorgrafik, Moirémuster, Museum, LaTeX, Mathematik, Physik, Radio, Optik, Effekt, Zahl
www.sqrt.ch/description«Die Zahl ist das Wesen aller Dinge.» Pythagoras von Samos (ca. 570 bis ca. 490 v. d. Z.), griechischer Philosoph und Mathematiker.
www.sqrt.ch/museumviewportwidth=device-width, initial-scale=0.5
www.sqrt.ch/museumauthorMartin Ambauen
www.sqrt.ch/museumdescriptionWelcome to the Vector Moiré Museum. Moiré phenomena from geometrically repetitive figures are shown here, but you also get links to research topics related to the Moiré effect.
www.sqrt.ch/museumkeywordsMoiré, moire pattern, moire effect, graphics, optical, illusion, SVG, vector, Op art, computer art, Maurer rose, Barrier-grid animation, minimal, vector art, geometric, tesselation, abstract, shapes, colours, concentric, perspective, chromatic, tension, surface, pulsation, color, flicker, human eye, formal, vision, eyesight, perception, view, seeing, sight, ornaments, symmetry, pattern, string, physics, mathematics
www.sqrt.ch/grafikauthorMartin Ambauen
www.sqrt.ch/grafikdescriptionSammlung von minimalen Vektorgrafiken, welche Moiré-Effekte oder optische Täuschungen zeigen. Interaktion wird durch CSS ermöglicht; einige Unterseiten verwenden JavaScript.
www.sqrt.ch/grafikkeywordsOptik, optische Täuschungen, Kontrast, SVG, Vektor, Muster, Moiré-Effekt, Moiremuster, Pattern, Layers, skalierbar, Vision, scalable vector graphics, Grafik, PDF, moire pattern, Abbildung, Animation, Druckgrafik, Illustration, Simulation, Standbild, Op-Art
www.sqrt.ch/grafikviewportwidth=device-width, initial-scale=0.6
www.sqrt.ch/texviewportwidth=device-width, initial-scale=0.5
www.sqrt.ch/texauthorMartin Ambauen
www.sqrt.ch/texdescriptionEinführung in LaTeX anhand von Beispielen. LaTeX liefert erstklassige typographische Ergebnisse und ist daher das Textsatzprogramm erster Wahl nicht nur für mathematische Arbeiten.
www.sqrt.ch/texkeywordsTexts, TeX, Ambauen, Martin, LaTeX, Texte, Beispiele, Textverarbeitung, Physik, Chemie, Musik, Mathematik
www.sqrt.ch/radioviewportwidth=device-width, initial-scale=0.5
www.sqrt.ch/radioauthorMartin Ambauen
www.sqrt.ch/radiodescriptionHier finden sich Radio-Wiedergabelisten, Radioprogramme zu Kultur und Klassik. Sur cettes pages vous trouverez des informations sur les radios culturelles. Playlists.
www.sqrt.ch/radiokeywordsRadio, Sender, Frequenz, Playlist, m3u, ondes longues, grandes ondes, culture, stations, playlists, Wiedergabelisten, UKW, LW, MW, Satellit, DAB+, 5G, Streaming, Rundfunk

Printability10.0

Help

100% of pages are optimised for printing

  • All of this website appears to be optimised for printing (using CSS).

Media specific CSS detected

URL format10.0

Help

  • This website uses appropriate web addresses (URLs) throughout. This is excellent and will help search engine placement, usability and the marketability of this website.

Freshness10.0

Help

Last updated March 26, 2023

  • It looks like this website was last updated on Sunday, 26 March 2023. This is good because visitors perceive up-to-date websites as more credible. Websites that are updated regularly are also spidered by search engines more often.
  • To find this information we used the last modified dates reported by this website's server in addition to looking for dates written on each page.

All dates found

DateFileSource
24/03/2023www.sqrt.ch/Last modified header
22/03/2023www.sqrt.ch/museumLast modified header
26/03/2023www.sqrt.ch/grafikLast modified header
30/09/2022www.sqrt.ch/texLast modified header
14/02/2023www.sqrt.ch/radioLast modified header
27/06/2021www.sqrt.ch/Radio/langwelle.jpgLast modified header
27/06/2021www.sqrt.ch/Radio/cso.svgLast modified header
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09/08/2022www.sqrt.ch/styles/style.cssLast modified header

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