KLETT.DE Ernst Klett Verlag - Schulbücher, Lehrmaterialien und Lernmaterialien

klett.de Website Information

Daily Unique Visits: 33,832

Daily Page Views: 202,992

Income Per Day: $406

Estimated Value: $292,320

This website is located in Germany and is using following IP address 185.186.220.50. See the complete list of popular websites hosted in Germany.

klett.de is registered under .DE top-level domain. Please check other sites in .DE zone.

Website klett.de is using the following name servers:

  • ns01.kle.tt
  • ns03.kle.tt
  • ns02.kle.tt
  • ns04.kle.tt

and is probably hosted by Adacor Hosting GmbH. See the full list of other websites hosted by Adacor Hosting GmbH.

The highest website klett.de position in Alexa rank database was 40470 and the lowest rank position was 42881. Current position of klett.de in Alexa rank database is 42392.

Desktop speed score of klett.de (80/100) is better than the results of 69.89% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of klett.de (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.

Mobile speed score of klett.de (35/100) is better than the results of 13.85% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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klett.de Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


klett.de whois

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Domain: klett.de
Status: connect

klett.de server information

Servers Location

klett.de desktop page speed rank

Last tested: 2016-09-04


Desktop Speed Medium
80/100

klett.de Desktop Speed Test Quick Summary


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priority - 7Leverage browser caching

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priority - 4Minify JavaScript

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priority - 3Reduce server response time

priority - 0Minify CSS

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klett.de Desktop Resource Breakdown

Total Resources18
Number of Hosts3
Static Resources13
JavaScript Resources4
CSS Resources3

klett.de mobile page speed rank

Last tested: 2017-12-04


Mobile Speed Bad
35/100

klett.de Mobile Speed Test Quick Summary


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priority - 43Avoid landing page redirects

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priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

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priority - 26Minify JavaScript

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priority - 18Optimize images

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priority - 10Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

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priority - 8Reduce server response time

priority - 3Minify CSS

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priority - 1Minify HTML

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klett.de Mobile Resource Breakdown

Total Resources19
Number of Hosts3
Static Resources13
JavaScript Resources4
CSS Resources3

klett.de mobile page usability

Last tested: 2017-12-04


Mobile Usability Good
100/100

klett.de HTML validation

Errors

Attribute “alt” not allowed on element “a” at this point.

Line: 555 Column: 37 - 105
"... <a alt="" href="/klett-lernen?campaign=startseite/slider/lernenapp" > ..." Line: 581 Column: 37 - 111
"... <a alt="" href="/lehrwerk/green-line-transition-ausgabe-ab-2018/einstieg" > ..." Line: 607 Column: 37 - 154
"... <a alt="" href="/lehrwerk/pontes-ausgabe-bayern-2-fremdsprache-ab-2018/einstieg?campaign=startseite/slider/pontesby" > ..." Line: 633 Column: 37 - 139
"... <a alt="" href="https://grundschul-blog.de?campaign=startseite/slider/grundschulblog" target="_blank"> ..." Line: 659 Column: 37 - 132
"... <a alt="" href="/lehrwerk/zahlenbuch-ausgabe-ab-2017/einstieg?campaign=startseite/slider/zabu" > ..." Line: 685 Column: 37 - 183
"... <a alt="" href="http://www.klett.de/lehrwerk/lambacher-schweizer-nordrhein-westfalen-2016/einstieg?campaign=startseite/carousel/lambacherNRW2016" > ..." Line: 711 Column: 37 - 123
"... <a alt="" href="http://www.klett.de/by/decouvertes?campaign=startseite/slider/dec_by" > ..."

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 559 Column: 89 - 176
"... <img class="img-responsive" src="/cms/assets/14/Klett_Lernen_WIN_Banner_Startseite.jpg"> ..." Line: 585 Column: 89 - 166
"... <img class="img-responsive" src="/cms/assets/14/slider_gl_transition.471.jpg"> ..." Line: 611 Column: 89 - 159
"... <img class="img-responsive" src="/cms/assets/14/slider_pontes2_by.jpg"> ..." Line: 637 Column: 89 - 156
"... <img class="img-responsive" src="/cms/assets/14/slider_gs_blog.jpg"> ..." Line: 663 Column: 89 - 152
"... <img class="img-responsive" src="/cms/assets/14/zahlenbuch.jpg"> ..." Line: 689 Column: 89 - 167
"... <img class="img-responsive" src="/cms/assets/14/slider_lambacher_1120x315.jpg"> ..." Line: 715 Column: 89 - 155
"... <img class="img-responsive" src="/cms/assets/14/slider_dec_by.jpg"> ..."

Bad value “” for attribute “src” on element “img”: Must be non-empty.

Line: 818 Column: 97 - 76
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/empfehlungen_erklaerfilme.jpg" src="" alt="Klett Erklärfilm"> ..." Line: 855 Column: 97 - 94
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/kataloge-2017.jpg" src="" alt="Kataloge 2017 online durchblättern"> ..." Line: 891 Column: 97 - 84
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/klett-fortbildung_727.267.jpg" src="" alt=" Fortbildungen bei Klett"> ..." Line: 926 Column: 97 - 93
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/niedersachsen_kornfeld_727.jpg" src="" alt="Neue Kerncurricula Oberstufe 2018"> ..." Line: 965 Column: 97 - 102
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/deutsch-als-zweitsprache.jpg" src="" alt="Sprachförderung | Deutsch als Zweitsprache"> ..." Line: 1000 Column: 97 - 82
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/saarland.422.jpg" src="" alt="Schulbuchausleihe 2018"> ..." Line: 1040 Column: 105 - 107
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/empfehlungen_bildungslogin.jpg" src="" alt="eBook und eBook pro im BILDUNGSLOGIN nutzen"> ..." Line: 1076 Column: 97 - 78
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/vielfalt.jpg" src="" alt="Vielfalt bei Klett"> ..." Line: 1111 Column: 97 - 105
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/panthermedia_baden-wuerttemberg.jpg" src="" alt="Bildungsplan 2016 - Allgemeinbildende Schulen"> ..." Line: 1149 Column: 97 - 93
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/mein-klett.jpg" src="" alt="Mein Klett: Alle Vorteile nutzen."> ..." Line: 1184 Column: 97 - 99
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/bw_727.jpg" src="" alt="Neue Bildungspläne - Berufliche Schulen"> ..." Line: 1222 Column: 97 - 102
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/inklusion.jpg" src="" alt="Inklusion: Nützliche Materialien und Tipps"> ..." Line: 1257 Column: 97 - 99
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/nur-der-inhalt-zaehlt_727.jpg" src="" alt="Gedruckt oder digital: Der Inhalt zählt"> ..." Line: 1292 Column: 97 - 77
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/Deutschblog.375.gif" src="" alt="Jetzt abonnieren!"> ..." Line: 1328 Column: 97 - 99
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/berlin_brandenburg.371.jpg" src="" alt="Neuer Rahmenlehrplan - passende Bücher!"> ..." Line: 1366 Column: 97 - 100
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/klett_akademie_727.269.gif" src="" alt="Klett Akademie für Fremdsprachendidaktik"> ..." Line: 1402 Column: 97 - 101
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/newsletter.jpg" src="" alt="Newsletter: Kostenlose Infos für Ihr Fach"> ..." Line: 1437 Column: 97 - 83
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/niedersachsen.jpg" src="" alt="Oberschule und neue IGS"> ..." Line: 1475 Column: 97 - 114
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/empfehlungen_zahlenbuch.jpg" src="" alt="Zahlenbuch zum Schulbuch des Jahres 2017 ausgezeichnet"> ..." Line: 1510 Column: 97 - 94
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/service_aussendienst.jpg" src="" alt="Außendienst: Wir beraten Sie gerne"> ..." Line: 1545 Column: 97 - 71
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/referendare.jpg" src="" alt="Referendare"> ..." Line: 1580 Column: 97 - 92
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/hessen-oberstufe_727.jpg" src="" alt="Neue Lehrwerke für die Oberstufe"> ..." Line: 1618 Column: 97 - 83
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/schleswig-holstein_727.jpg" src="" alt=" Auf neuen (Schul)wegen"> ..." Line: 1656 Column: 97 - 75
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/karriere-bei-klett_727.jpg" src="" alt="Stellenangebote"> ..." Line: 1691 Column: 97 - 87
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/nordrhein-westfalen_727x409.jpg" src="" alt="Sekundar- und Gesamtschulen"> ..." Line: 1729 Column: 97 - 91
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/klett-treffpunkt_727.jpg" src="" alt="Treffpunkt Klett: Klett vor Ort"> ..." Line: 1764 Column: 97 - 102
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/nrw_curricula.jpg" src="" alt="Sek II: Vorlagen für schuleigene Curricula"> ..." Line: 1802 Column: 97 - 93
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/sachsen-anhalt.jpg" src="" alt="Neue Fachlehrpläne - Neue Bücher!"> ..." Line: 1840 Column: 97 - 91
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/empfehlungen_lambacher_65.jpg" src="" alt="Festschrift Lambacher Schweizer"> ..." Line: 1875 Column: 97 - 98
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/termine_wettbewerb_geschichte.jpg" src="" alt="Nachwuchswettbewerb im Fach Geschichte"> ..." Line: 1910 Column: 97 - 78
"... <img class="img-responsive" data-lazy-loading="true" data-src="/cms/assets/14/abiturvorbereitung.jpg" src="" alt="Abiturvorbereitung"> ..."

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klett.de Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


klett.de TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.