Cen.acs.org - SEO Check

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Übersicht der SEO Analyse
Metaangaben
75% 
Seitenqualität
61% 
Seitenstruktur
58% 
Verlinkung
6% 
Server
100% 
Externe Faktoren
100% 
SEO Score
Antwortzeit
0,21 s
Dateigröße
169,70 kB
Wörter
1623
Medien
21
Anzahl Links
280 Intern / 40 Extern

To-do Liste mit SEO Optimierungen

Meta-Angaben im HTML

Titel
(Extrem wichtig)
C&EN | Chemistry news from around the world
Die Länge des Titels ist optimal. (419 Pixel von maximal 580 Pixel Länge)
Es gibt keine Wortwiederholungen im Titel.
Meta-Description
(Extrem wichtig)
Chemical & Engineering News is a weekly news magazine published by the American Chemical Society, providing professional and technical news and analysis in the fields of chemistry and chemical engineering.
Die Meta-Description ist zu lang. (1306 Pixel von maximal 1000 Pixel) Jetzt optimieren
Crawlbarkeit
(Extrem wichtig)
Es gibt keine Probleme beim Zugriff auf die Webseite.
Canonical Link
(Wichtig)
https://cen.acs.org/index.html
Der angegebene Canonical Link verweist auf eine andere URL.
Sprache
(Wenig wichtig)
Im Text erkannte Sprache: en
Im HTML angegebene Sprache: en
Serverstandort: Vereinigte Staaten von Amerika
Die Sprache wird im HTML Code wie folgt angegeben: en
Alternate/Hreflang Links
(Wenig wichtig)
Die Seite nutzt keine Alternate Links.
Weitere Metatags
(Wenig wichtig)
Es gibt keinen rel next Meta Tag auf der Seite.
Es gibt keinen rel prev Meta Tag auf der Seite.
Domain
(Wenig wichtig)
Die Domain ist keine Subdomain.
Die Länge der Domain ist gut.
Die Domain enthält keine Umlaute.
Seiten URL
(Wenig wichtig)
In der URL wurden keine Parameter entdeckt.
In der URL wurde keine Session ID entdeckt.
Die URL hat nicht zu viele Unterverzeichnisse.
Zeichensatzkodierung
(Wenig wichtig)
Die Angaben zur Zeichensatzkodierung (UTF-8) sind fehlerfrei.
Doctype
(Nice to have)
Die Doctype Angabe HTML 5 ist korrekt angegeben.
Die Doctype Angabe befindet sich an erster Stelle im HTML-Code.
Favicon
(Nice to have)
Das Favoriten Icon (Favicon) ist korrekt verlinkt.

Meta Tags

NameWert
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google-site-verificationcTLP2Ja1JLsfxODZIDMOobGcQm-zwwVM0MvemqIIyTs
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facebook-domain-verificationan25ujdd57jxj7j3n94vqa7wv6hww6
langen
twitter:site@cenmag
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twitter:titleChemical & Engineering News
twitter:descriptionChemical & Engineering News is a weekly news magazine published by the American Chemical Society, providing professional and technical news and analysis in the fields of chemistry and chemical engineering.
og:titleChemical & Engineering News
og:site_nameChemical & Engineering News
og:descriptionChemical & Engineering News is a weekly news magazine published by the American Chemical Society, providing professional and technical news and analysis in the fields of chemistry and chemical engineering.
og:imagehttps://cen.acs.org/content/dam/cen/static/images/sitewide-default-images/site-cen-logo-social-default.jpg
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Seitenqualität

Inhalt
(Extrem wichtig)
Einige Wörter aus dem Seitentitel werden nicht im Text bzw. Inhalt der Seite verwendet
Es befinden sich 2 Text-Duplikate auf der Seite:
  • Duplikat: The Boston-based start-up has designed a small molecule that may help ...
Der Inhalt ist mit 1623 Wörtern in Ordnung.
Der Text besteht zu 26% aus Füllwörtern.
Im Text befindet sich eine Aufzählung, dies deutet auf eine gute Textstruktur hin.
Es wurden 12 Fließtextblöcke auf der Seite gefunden.
Es wurden keine Platzhalter Texte bzw. Bilder gefunden.
Die durchschnittliche Satzlänge ist mit 23.55 Wörtern gut.
Frames
(Extrem wichtig)
Die Seite hat kein Frameset.
Mobile
(Wenig wichtig)
Es werden mehrere viewport Angaben gemacht. Es sollte nur eine geben.
Es ist kein Apple-Touch Icon angegeben.
Der angegebene Viewport (width=device-width, initial-scale=1) ist korrekt.
Bold- und Strongtags
(Wenig wichtig)
Einige der Tags sind zu lang. Mit 88 Zeichen ist dieser länger als 70 Zeichen:
"acs’s standard package lets you stay up to date with c&en, stay active in acs, and save."
Bilder Optimierung
(Wenig wichtig)
Bei 7 Bildern fehlt das Alt-Attribut. Der Inhalt von Alt-Attributen wird von Suchmaschinen auch als Text gewertet und ist wichtig für die Bildersuche.
Soziale Vernetzung
(Nice to have)
Es befinden sich wenige Social-Sharing Möglichkeiten auf der Seite. Mit Plugins zum Teilen kann die Reichweite der Seite in sozialen Netzwerken erhöht werden.
Zusätzliches Markup
(Nice to have)
Es wurde kein zusätzliches Markup gefunden.
HTTPS
(Wenig wichtig)
Die Seite verwendet HTTPS um Daten sicher zu übertragen.
Alle eingebundenen Dateien werden ebenfalls über HTTPS ausgeliefert.

Medienliste

URLALT-AttributeTitel
...t/dam/acs-cen-redesign/logo/cen-logo.pngChemical & Engineering NewsChemical & Engineering News
...am/acs-cen-redesign/logo/cenLogo-120.pngChemical & Engineering NewsChemical & Engineering News
...am/acs-cen-redesign/logo/cenLogo-120.pngChemical & Engineering NewsChemical & Engineering News
...am/acs-cen-redesign/logo/cenLogo-120.pngChemical & Engineering NewsChemical & Engineering News
...tent/dam/acs-cen-redesign/logo/flask.pngKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgKein ALT-Attribut angegeben
...s/dev/thumbnail-profiles/placeholder.jpgimage info
...s/dev/thumbnail-profiles/placeholder.jpgimage name
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...s-cen-redesign/logo/CEN_Jobs_RedGrey.pngKein ALT-Attribut angegeben
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...t/dam/acs-cen-redesign/logo/cen-logo.pngACS
/content/dam/acs-cen-redesign/logo/acs.pngACS Chemistry for lifeACS: Chemistry for Life(®)

Seitenstruktur

H1 Überschrift
(Extrem wichtig)
Es ist keine H1-Überschrift definiert.
Überschriften
(Wichtig)
Einige Überschriftentexte kommen doppelt auf der Seite vor.
Die Überschriftenstruktur ist fehlerhaft. Es sollte keine Hierarchie (H1-H6) ausgelassen werden.
Es befinden sich 63 Überschriften auf der Seite. Die Anzahl der Überschriften sollte in einem besseren Verhältnis zum Text stehen.
Einige Überschriften haben keinen Inhalt.

Überschriftenstruktur

Überschriften HierarchieInhalt
H2 Celebrate National Chemistry Week and get 30% off ACS membership with promo code NCW24 through Nov. 1.
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H3 PODCASTS Text-Duplikat
H3 CHEMPICS Text-Duplikat
H3 JOBS Text-Duplikat
H3 Grab your lab coat. Let's get started
H3 Welcome!
H3 Welcome! Text-Duplikat
H3 Brake lights for green hydrogen in Europe
H3 Chemistry in Pictures: 'G' is for glamorous
H3 How much do you know about porphyria and vampire mythology?
H3 Naica’s crystal cave captivates chemists
H3 How can companies recycle wind turbine blades?
H3 What are glow sticks, and what’s the chemical reaction that makes them light up?
H3 Covalent organic framework captures carbon from air
H3 Are undergraduate chemistry programs in crisis?
H3 Podcast: How the Nobel Prize in Chemistry was won
H3 An agar horror story and identifying a reddish liquid
H3 Reactions: Attrition in science and noncanonical structures for DNA-based computers
H3 What’s next for Kate the Chemist?
H3 Editorial: Supporting trans chemists for a stronger chemistry community
H3 Turning tides for endotoxin testing
H3 Monitoring the papers that are fed to AI
H3 Noninsecticidal agrochemicals alter insect behavior
H3 Toxic food packaging chemicals found in humans
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H4 Leere Überschrift
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H4 Podcast: How the Nobel Prize in Chemistry was won Text-Duplikat
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H4 2024 ChemLuminary Awards celebrate ACS volunteers
H4 Leere Überschrift
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Die internen Links haben teilweise dynamische Parameter. Alle internen URLs, welche nicht als nofollow markiert sind, sollten keine dynamischen Parameter aufweisen.
Einige der Linktexte wiederholen sich.
8 Links haben keinen Linktext oder nur Inhalt in Alt- und Titelattributen.
Die Anzahl an internen Links ist ok.
Keiner der Linktexte ist zu lang.
Es befinden sich zu viele externe Links (40) auf der Seite.

Gefundene Links auf dieser Seite

LinkAttributeLinktext
https://www.acs.org/Neues Fenster Extern Subdomain ACS
https://pubs.acs.org/Neues Fenster Extern Subdomain Publications
https://www.cas.org/Neues Fenster Extern Subdomain CAS
https://cen.acs.org/IMG-ALT Chemical & Engineering News
/most-recent.htmlLATEST
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/topics/analytical-chemistry.htmlTextduplikat Analytical Chemistry
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/topics/safety.htmlTextduplikat Safety
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/topics/acs-news.htmlTextduplikat ACS News
/magazine/102/10234.htmlCurrent Issue
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https://pubs.acs.org/loi/cgeabjExtern Subdomain Archives: 100 Years of C&EN
/magazine/102/10234.htmlTextduplikat Current Issue
/magazine/all-issue.htmlTextduplikat Recent Issues
https://pubs.acs.org/loi/cgeabjExtern Subdomain Textduplikat Archives: 100 Years of C&EN
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/collections/cen-centennial.htmlC&EN's Centennial
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/sections/Trailblazers.htmlTrailblazers
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/collections/CENs-10-Start-ups...Textduplikat 10 Start-ups to Watch
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/sections/global-top-50.htmlTextduplikat Global Top 50 chemical firms
/sections/us-top-50.htmlTextduplikat US Top 50 chemical firms
/sections/amazing-women-chemis...Amazing Women of Chemistry
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/sections/arabic.htmlباللغة العربية C&EN
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/collections/chinese.htmlTextduplikat C&EN中文版
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/collections/webinars.htmlTextduplikat C&EN Webinars
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https://chemistryjobs.acs.org/Extern Subdomain JOBS
https://chemistryjobs.acs.org/Extern Subdomain Textduplikat JOBS
https://cen.acs.org/search.htmlAdvanced Search
https://www.facebook.com/CENewsNeues Fenster Extern Subdomain A-TITLE Facebook
https://www.instagram.com/cenmag/Neues Fenster Extern Subdomain A-TITLE Instagram
https://twitter.com/cenmagNeues Fenster Extern A-TITLE X
https://www.linkedin.com/showc...Neues Fenster Extern Subdomain A-TITLE LinkedIn
https://cen.acs.org/index.htmlIMG-ALT Chemical & Engineering News
https://www.acs.org/bin/acs/ss...Extern Subdomain A-TITLE Login
https://cen.acs.org/index.htmlTextduplikat IMG-ALT Chemical & Engineering News
/most-recent.htmlTextduplikat LATEST
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