CHEMISTRY.ABOUT.COM Revisione del sito web

Le statistiche SEO per CHEMISTRY.ABOUT.COM non sono state aggiornate da almeno 60 giorni. Abbiamo avviato un'attività di analisi in background per questo sito Web, attendi qualche minuto.

Informazioni di base

Titolo sito:
server:
cloudflare

Pagine indicizzate

Bing:
Google:

Informazioni sulla pagina

Titolo:
Chemistry
Lunghezza: 9 caratteri; Migliore lunghezza: 10 ~ 60 caratteri

Il tag del titolo HTML è uno degli elementi più importanti del SEO on-page e appare nei risultati di ricerca, nelle schede del browser e nei segnalibri.

Il tag del titolo non sembra avere la lunghezza ideale.

I risultati di ricerca di Google troncano i titoli che superano i 60 caratteri; I risultati della ricerca di Bing troncano i titoli che superano i 70 caratteri.

Ecco le migliori pratiche per i meta titoli:

  • Mantieni una lunghezza del titolo compresa tra 10 e 60 caratteri.
  • Rendi evidenti le parole chiave/frasi chiave
  • Incorpora parole di potere rilevanti
  • Sii chiaro ma conciso
Metadescrizione:
Learn about chemical reactions, elements, and the periodic table with these resources for students and teachers.
Lunghezza: 112 caratteri; Migliore lunghezza: 50 ~ 160 caratteri
Metaparole chiave:
Lunghezza: 0 caratteri; Migliore lunghezza: 10 ~ 255 caratteri

The length of your meta keywords seems to be outside the recommended range. Ideally, a meta keywords should be between 10 and 255 characters, including spaces.

Meta keywords are a specific type of meta tag that appear in the HTML code of a web page. They provide information to search engines about the topic of the page. Meta keywords were once used to help rank web pages in search engine results. However, due to the abuse by webmasters and marketers, Google claims to have stopped using them more than a decade ago. Despite this, there are still reasons to consider using meta keywords:

  • Uncertain Impact on Google's Algorithm: While Google devalued meta keywords, it is uncertain if they were entirely removed from its ranking algorithm. Google keeps its ranking algorithms top secret to deter people from gaming the system.
  • Other Search Engines and CMS: Other search engines like Yandex, Baidu, and Naver may still use meta keywords. Additionally, some internal CMS search systems, such as SOLR and Algolia, also utilize the meta keywords tag.

Best practices for Meta Keywords

  • Relevance is Key: It is crucial to choose keywords that accurately reflect the content of your page.
  • Keep it Limited: It is generally recommended not to exceed more than 10 meta keywords for a single page. Also, the content length should not exceed 255 characters (including spaces).
  • Consider Long-Tail Keywords: Long-tail keywords are more specific and longer phrases that target a niche audience. These keywords can be highly effective in driving targeted traffic to your website.

Remember, meta keywords are just one aspect of search engine optimization (SEO), and search engines now place less emphasis on them compared to other factors. However, by following these best practices, you can still optimize your meta keywords effectively and improve the visibility of your web pages.

Etichetta H1:
Chemistry
Lunghezza: 9 caratteri; Migliore lunghezza: 10 ~ 255 caratteri

The length of your H1 tag seems to be outside the recommended range. Ideally, an H1 tag should be between 10 and 255 characters, including spaces, and remember to use only one H1 tag per page.

The H1 tag in HTML is the main headline users see first when a page loads. It conveys the page's topic, enticing visitors to read further. H1 tags are crucial for SEO, user experience, and accessibility. They distinguish the main title on a webpage, aiding search engines and users in understanding the content.

Here are best practices for H1 tags

  • Use H1 tags for page titles.
  • Limit to one H1 tag per page.
  • Keep H1 tags short and concise.
  • Structure headings hierarchically.
  • Include your main keyword.
  • Ensure H1 tags are engaging.

Tecnologia del sito

server:
cloudflare
SSL sicuro:
Disponibile
robots.txt:
Non disponibile
Mappa del sito XML:
Non disponibile
Compressione Gzip:
Disponibile
favicon.ico:
Non disponibile

Analisi intestazione HTTP

I campi di intestazione HTTP sono componenti dell'intestazione del messaggio di richieste e risposte nell'Hypertext Transfer Protocol (HTTP). Definiscono i parametri operativi di una transazione HTTP. I campi dell'intestazione non vengono visualizzati direttamente dai normali browser Web come Internet Explorer, Google Chrome, Firefox ecc. Di seguito sono riportate le informazioni dell'intestazione HTTP di chemistry.about.com:
HTTP/1.1 200 OK
Date: Mon, 04 Aug 2025 02:43:28 GMT
Content-Type: text/html;charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
CF-Ray: 969ab5147d3228c9-EWR
CF-Cache-Status: DYNAMIC
Cache-Control: max-age=1800, private
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Link: ; rel=preload; as=style; nopush, ; rel=preload; as=font; type="font/woff2"; crossorigin; nopush, ; rel=preload; as=font; type="font/woff2"; crossorigin; nopush, ; rel=preload; as=script; nopush, ; rel=preload; as=script; nopush, ; rel=preload; as=script; nopush, ; rel=preload; as=script; nopush; group=top, ; rel=preload; as=script; nopush; group=bottom
Set-Cookie: TMog=n2a142bd3ae2e4c6180e2c581899ef84a02; Path=/; Domain=.thoughtco.com; Expires=Sat, 22 Aug 2093 05:57:35 GMT; Max-Age=2147483647; Secure
Strict-Transport-Security: max-age=15552000
Vary: Accept-Encoding, Origin, Access-Control-Request-Method, Access-Control-Request-Headers
content-security-policy: frame-ancestors 'self' https://*.seo.aws.about.com https://*.dotdash.com *.thoughtco.com; upgrade-insecure-requests;
referrer-policy: no-referrer-when-downgrade
x-abt-application-version: 6.0.0
x-abt-server-hostname: sq-k8s-prod13610/reference-c7740eb-75bb687dc7-8xxcc
x-content-security-policy: frame-ancestors 'self' https://*.seo.aws.about.com https://*.dotdash.com *.thoughtco.com; upgrade-insecure-requests;
x-content-type-options: nosniff
x-connection-protocol: HTTP/1.1
nel: {"report_to":"network-errors","max_age":2592000,"success_fraction":0,"failure_fraction":1.0,"include_subdomains":true}
report-to: {"group":"network-errors","max_age":2592000,"endpoints":[{"url":"https://rjs.3gl.net/hawklogserver/561/re.p"}]}
Set-Cookie: globalTI_SID=870145b5-9454-4f5a-91e2-a0f5d4c83e6c; Path=/; Domain=.thoughtco.com; Expires=Wed, 4 Aug 2027 02:43:28 GMT; Max-Age=63072000; Secure
Set-Cookie: Mint=n2a142bd3ae2e4c6180e2c581899ef84a02; Path=/; Domain=.thoughtco.com; Expires=Mon, 4 Aug 2025 03:13:28 GMT; Max-Age=1800; Secure
Set-Cookie: pc=1; Path=/; Domain=.thoughtco.com; Expires=Mon, 4 Aug 2025 03:13:28 GMT; Max-Age=1800; Secure
Set-Cookie: __cf_bm=JQmGlc5BSk5aRSeHseEz8WkCXMFicpptHlX8sOD8N90-1754275408-1.0.1.1-iA2t73GqrSwPO6G25MeKrFXklpEpY1vWk84VzGuZWUYLdQiSNpOXcmxL2csvPqOc8BV_FNETcl.zl180M1zLW2QIrA2XxLyelMBwpw.JxWyvOI22uws39N1vW8tdXbKw; path=/; expires=Mon, 04-Aug-25 03:13:28 GMT; domain=.thoughtco.com; HttpOnly; Secure; SameSite=None
Set-Cookie: _cfuvid=Rlp6.9pUROz0xan6LJh2gpQ3S_HiBdFGyvca0jlFXTU-1754275408143-0.0.1.1-604800000; path=/; domain=.thoughtco.com; HttpOnly; Secure; SameSite=None
Server: cloudflare
Content-Encoding: gzip
alt-svc: h3=":443"; ma=86400

Analisi record DNS

Domain Name Systes (DNS) traduce i nomi di dominio facilmente memorizzabili negli indirizzi IP numerici necessari allo scopo di localizzare servizi e dispositivi informatici in tutto il mondo. Sono presenti 33 record DNS totali di about.com.
Ospite Tipo IP/Destinazione TTL Informazioni aggiuntive
about.comA600
about.comA600
about.comA600
about.comA600
about.comNS600
about.comNS600
about.comNS600
about.comNS600
about.comNS600
about.comNS600
about.comNS600
about.comNS600
about.comCNAME30
about.comSOA300expire: 604800
serial: 1653388086
about.comMX16088pri: 10
about.comMX16088pri: 40
about.comMX16088pri: 30
about.comMX16088pri: 20
about.comMX16088pri: 50
about.comTXT
atlassian-domain-verification=uUTQHYge655RxaiCqp-IAyc/Q7GgtoJziDouyp0rB7n8OUdp4q8WfSgllR1IaJVR
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about.comTXT
airtable-verification=7f23bd05102c5a2c073b0d0689ecaf71
16351
about.comTXT
slack-domain-verification=Op2DUSOSy3sEUYXVj1TJaFq1nWifizEEvpkiTPNr
16351
about.comTXT
_globalsign-domain-verification=oJIgih5w0Ef57wJVNPzdo5a4cUlsZiQUhumcDQKSj2
16351
about.comTXT
google-site-verification=naBvDaAtPQECSKkKcHQUjsdsJagdKYI4dG5-Vj-BCRw
16351
about.comTXT
facebook-domain-verification=rf8ocdhxrznl039sodxk5mul9of8l7
16351
about.comTXT
globalsign-domain-verification=w4_cM6JGgWq8DXcWhKiS6LtG0lzij1oIZfjNoaPv_D
16351
about.comTXT
adobe-idp-site-verification=4d443bb146b2a60fc0c0216c899a6ef9baa971cc3c36ac4b3020b4719b5c2e82
16351
about.comTXT
openai-domain-verification=dv-7Ma37IMMFvwqj1Fwgsn676A6
16351
about.comTXT
v=spf1 ip4:64.125.213.247 ip4:216.223.13.247 ip4:34.194.76.185 ip4:35.164.185.216 ip4:34.194.69.219 include:_spf.salesforce.com include:_spf.google.com include:spf.protection.outlook.com include:amazonses.com ~all
16351
about.comAAAA
2a04:4e42::649
298
about.comAAAA
2a04:4e42:400::645
298
about.comAAAA
2a04:4e42:200::645
298
about.comAAAA
2a04:4e42:600::645
298