What technology does scientificamerican.com use?

We did not detect any specific technologies for scientificamerican.com in the latest scan.

Is scientificamerican.com secure (HTTPS)?

Yes. scientificamerican.com uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 15, 2026.

Who hosts scientificamerican.com?

Hosting provider information for scientificamerican.com is not available yet.

What is scientificamerican.com's SEO score?

scientificamerican.com scored 85/100 for SEO in the latest analysis (great).

What is scientificamerican.com's overall website score?

scientificamerican.com has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.

Has scientificamerican.com's score changed over time?

scientificamerican.com's overall score has declined by 3 points (from 94 to 91) since Jul 18, 2026.

scientificamerican.com

Scientific American

Last scanned Jul 29, 2026, 1:00 PM · 10 views

Overall score

Excellent

Summary

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

Top issues to fix

5 issues found

Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

3 issue(s) found

Performance

259 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 18, 2026

Overall: 91
SEO: 85
Security: 90
Performance: 90
Accessibility: 100

Organization

Company details published in this site's own structured data.

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

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Meta tags

Title: Scientific American
Description: Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
Canonical: https://www.scientificamerican.com/
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0
Robots meta: max-image-preview:standard
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: Let's Encrypt
Subject: *.scientificamerican.com
Valid from: Jun 17, 2026
Valid to: Sep 15, 2026
Days until expiry: 48
SAN domains: *.scientificamerican.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyEnabled
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyEnabled

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 43 · H3 7

Links

83 internal · 7 external · 20 broken

Images

49 total · 0 missing alt

Scripts / Styles

5 scripts · 3 stylesheets

JS / CSS size

378 KB · 0 B

Page size

491 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Meta description longer than 160 characters
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://scientificamerican.com
Final URL: https://www.scientificamerican.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 249 ms
HTML size: 491 KB
Redirect chain: https://scientificamerican.com → https://www.scientificamerican.com/

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Frequently asked questions

What technology does scientificamerican.com use?: We did not detect any specific technologies for scientificamerican.com in the latest scan.
Is scientificamerican.com secure (HTTPS)?: Yes. scientificamerican.com uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 15, 2026.
Who hosts scientificamerican.com?: Hosting provider information for scientificamerican.com is not available yet.
What is scientificamerican.com's SEO score?: scientificamerican.com scored 85/100 for SEO in the latest analysis (great).
What is scientificamerican.com's overall website score?: scientificamerican.com has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
Has scientificamerican.com's score changed over time?: scientificamerican.com's overall score has declined by 3 points (from 94 to 91) since Jul 18, 2026.