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SGSiteGraph

plosone.org

PLOS One

Last scanned Jul 25, 2026, 2:25 PM · 2 views

80

Overall score

Great

Summary

This website uses Apache hosted on Google Cloud. SEO is fair (65/100) and accessibility is excellent (95/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Missing meta description.

United States
Hosted on Google Cloud

Top issues to fix

9 issues found · 3 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 1 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

+3 more issues — details in the sections below.

65

SEO

5 issue(s) found

75

Performance

716 ms

90

Security

HTTPS & header checks

95

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

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

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
PLOS One
Description
Canonical
Language
en
Charset
utf-8
Viewport
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Google Cloud
CDN provider
IP address
35.190.43.188
ASN
AS396982 (GOOGLE-CLOUD-PLATFORM - Google LLC, US)

DNS records

TypeValue
A
  • 35.190.43.188
AAAA
MX
TXT
  • google-site-verification=3e68u41bhYpazUkxFulJbrqVAPaEErzfNfJviPZ2aaU
NS
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Gandi SAS
Subject
*.plos.org
Valid from
Feb 25, 2026
Valid to
Sep 11, 2026
Days until expiry
48
SAN domains
*.plos.org, plos.org

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 2 · H2 12 · H3 9

Links

62 internal · 42 external · 1 broken

Images

13 total · 0 missing alt

Scripts / Styles

47 scripts · 3 stylesheets

JS / CSS size

1.6 MB · 517 KB

Page size

71.2 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
3
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

  • Missing viewport meta tag

Scan details

Requested URL
https://plosone.org
Final URL
https://journals.plos.org/plosone/
HTTP status
200
HTTP version
HTTP/2
Response time
715 ms
HTML size
71.2 KB
Redirect chain
https://plosone.org → https://journals.plos.org/plosone → https://journals.plos.org/plosone/

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Frequently asked questions

What technology does plosone.org use?
plosone.org is built with jQuery, Apache.
Is plosone.org secure (HTTPS)?
Yes. plosone.org uses TLS 1.3 with a certificate issued by Gandi SAS, valid until Sep 11, 2026.
Who hosts plosone.org?
plosone.org is hosted on Google Cloud.
What is plosone.org's SEO score?
plosone.org scored 65/100 for SEO in the latest analysis (fair).
What is plosone.org's overall website score?
plosone.org has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.