WWW.FDA.GOV Revisione del sito web

The FDA is responsible for protecting the public health by ensuring the safety, efficacy, and security of human and veterinary drugs, biological products, and medical devices; and by ensuring the safety of our nation's food supply, cosmetics, and products that products that emit radiation

Lunghezza: 289 caratteri; Migliore lunghezza: 50 ~ 160 caratteri

The length of your meta description seems to be outside the recommended range. Ideally, a META DESCRIPTION should be between 50 and 160 characters, including spaces.

A meta description tag serves as a concise and informative summary of a web page's content, aiming to engage and inform users about the page's topic.

Google relies on the actual content of the page to generate a snippet for search results, but it may also utilize the meta description for a more descriptive representation of the page.

Meta descriptions act as a compelling pitch to persuade users that the page aligns with their search intent. While there's no strict character limit, Google truncates the snippet in search results as necessary to fit the device's width.

Best practices for Meta Descriptions

Length: Maintain a description length of 50-160 characters to ensure optimal visibility in search results.
Uniqueness: Craft unique descriptions for each page on your website to differentiate their purposes and content.
Accuracy: Create descriptions that precisely depict the specific content and purpose of the page.
Keywords: Ensure that each web page has a unique meta description containing important keywords relevant to the page's content.

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:

Celebrating 50 Years of CDRH

Lunghezza: 28 caratteri; Migliore lunghezza: 10 ~ 255 caratteri

Link esterni:

10 (0 nofollow)

Link interni:

57 (0 nofollow)

Tecnologia del sito

server:

nginx

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 www.fda.gov:

HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Server: nginx
Content-Language: en
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Last-Modified: Mon, 08 Jun 2026 21:50:38 GMT
ETag: "1780955438"
X-Cache-Status: BYPASS
X-Akamai-Transformed: 0 - 0 -
Content-Encoding: gzip
Cache-Control: public, max-age=3154
Expires: Mon, 08 Jun 2026 22:51:07 GMT
Date: Mon, 08 Jun 2026 21:58:33 GMT
Content-Length: 9881
Connection: keep-alive
Vary: Accept-Encoding
Alt-Svc: h3=":443"; ma=93600
Strict-Transport-Security: max-age=31536000 ; includeSubDomains ; preload
Set-Cookie: _abck=653080F49224A50A92CC15342B3573A5~-1~YAAQkATSF+GVb3KeAQAAZZs+qRDjBCiOAMVYM5M5ZSS/21XkSRhRyFqdOk5ly8r1EYZWhPi1bL0vjOAqR5A0Kmf/yVjFrd2CV7ZQ+Wgl6f9pjr58gI+c7VdXrngXuzM8noxItKCq6aEcKaWzpFLDdhOvFp1B6Hd/XZWVhZ7Aj63CYacCr+cPRqst4w504TFgWrxhaPgJZiB7EMHA1LasHMJIkt9tOyA0wufguWOFgSn3R53m43+6/pSgq361H7GMUsMUFVVDxGI6f702kxRv97RlvZnLK9oR4i/bZusSQQdYaw2dtZrEdNaMANIJAcGMmGu5PZPkfen/aoVFth/apW9on1KD9UndFmJHNpC+mIfpGed6GyCus+5vhhDN8bMB+jfNtOfZto41DnjMbe0htK0jxMffZsDGy4VzpN+bMWhs4EwgBRH3Dhl67vPruK0hJFNSct4=~-1~-1~-1~-1~-1; Domain=.fda.gov; Path=/; Expires=Tue, 08 Jun 2027 21:58:33 GMT; Max-Age=31536000; Secure
Set-Cookie: bm_sz=96F1557C08C34E291249962B08C7C793~YAAQkATSF+KVb3KeAQAAZZs+qQBD1ZPUK4IMDtbBMpt+YoEEe2EP1BjX9HPtCkyGGWOQF8mm5zbN9AFIOCngQCmawWxVW19P4FPv2nUGZQWJqo7FFhcLd/CDKTKG0UbIW5MenqXnqRMZ5NIWVnvofrRv57dzDn1ovSB5IHNfMUvjIXMeSSzAJqqbId9vl2RlaOXPUntmZoMffkB2JKZhThlxjrVc4blpN4HNzSPvHcrsSI6C56px3GQf4djYlIEV05OCJHRBKc22elvqDfGjK0/qD6JSLxnjgley5IcO4T4+2wiTwWpaDSlsFR6IHr44joofmWoqx6HzzELqGNGXcrk0P4ypcfZGR0O02TqWwv0Lg0vhKTQFvId8j5V/TfkE8tnd7Jq02P4iJ9Ug9kz9fKCyxw==~3163718~3553593; Domain=.fda.gov; Path=/; Expires=Tue, 09 Jun 2026 01:58:33 GMT; Max-Age=14400

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 32 record DNS totali di fda.gov.

Ospite	Tipo	IP/Destinazione	TTL	Informazioni aggiuntive
fda.gov	A	23.196.3.190	20
fda.gov	A	23.196.3.198	20
fda.gov	NS	a7-67.akam.net	21023
fda.gov	NS	a20-65.akam.net	21023
fda.gov	NS	a13-64.akam.net	21023
fda.gov	NS	a1-242.akam.net	21023
fda.gov	NS	a24-66.akam.net	21023
fda.gov	NS	a2-65.akam.net	21023
fda.gov	SOA	mname: ns4.fda.gov rname: dnsadmin.fda.hhs.gov	21600	expire: 2419200 serial: 2021091403
fda.gov	MX	smtp9.fda.gov	14120	pri: 10
fda.gov	MX	smtp8.fda.gov	14120	pri: 10
fda.gov	MX	smtp7.fda.gov	14120	pri: 10
fda.gov	MX	smtp6.fda.gov	14120	pri: 10
fda.gov	TXT	identrust_validate=zXXOEi6CQ2E8NN+fqgQ0q+KVdRi7KOa6XTwefj9zhOe6	21600
fda.gov	TXT	RkQjM5mARE3LHFCQ454owCcYmNyZVV3lM3ziXSPPWtCW2/xeFfwDOYtSzHx1bO5BxQTV9hcMjMr/00cLSfQ/GA==	21600
fda.gov	TXT	MS=ms48783525	21600
fda.gov	TXT	identrust_validate=o4/9QHV5pc4hVjOw4+Ebgwt4DdfKspg017PqghCYCY01	21600
fda.gov	TXT	identrust_validate=c7KW+Ztf7fiYpL/1dimy5BACS/7wAWQAM+0vrb32x8qs	21600
fda.gov	TXT	smartsheet-gov-site-validation=HsHsNQ2BWzqEo3REvnA4aHm-csXa-eHu	21600
fda.gov	TXT	openai-domain-verification=dv-AxQqxffHhvOZOt4t4C17dZSm	21600
fda.gov	TXT	jamf-site-verification=PGVYWecttOGQ2AWnehEHWQ	21600
fda.gov	TXT	webexdomainverification.11G31=8411e648-086b-4727-aca0-c784ecb9827e	21600
fda.gov	TXT	ZOOM_verify_vTEkbQm_QTOaBDWdXKwrAw	21600
fda.gov	TXT	identrust_validate=S0MNbkM5L+oiB5jyFKX0Hu8G0oony8eebRYByXxdxA9o	21600
fda.gov	TXT	dZbV+0DRySs9wEKyoyX85nwTMJN6TX7SJ4Imh+uTXak5Ps5JnMhZFfKFe8efScPW04tj7oErmE4HUwRkQiUHSw==	21600
fda.gov	TXT	FMICzGkJO5j02YNdmENBs5kgzkmhZC/fMYTvO5fowMXe	21600
fda.gov	TXT	identrust_validate=4JTBEWb4UcAjNl/lyEYdU+hWXoNWrn9TdDN8Z3OvGSBG	21600
fda.gov	TXT	cisco-ci-domain-verification=74f9a92409e8b5db0b46652e631823388bcc0461ced801a6b1aa64912b1ec91a	21600
fda.gov	TXT	amazonses:jdV8OLJfTXw9mxS1imtjFUwKFRGSek+dBX1mXWxE2Es=	21600
fda.gov	TXT	v=spf1 include:_spf.fda.gov -all	21600
fda.gov	AAAA	2600:141b:1c00:32::17d1:482a	20
fda.gov	AAAA	2600:141b:1c00:32::17d1:4810	20