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peerj.com

PeerJ - Peer-Reviewed Open Access Journals, Trusted by Researchers

Last scanned Jul 25, 2026, 12:25 PM · 2 views

79

Overall score

Fair

Summary

Trusted by researchers, committed to open. This website uses Google Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is fair (65/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Title longer than 60 characters.

Trusted by researchers, committed to open. PeerJ delivers open-access publishing with transparent peer review across two STM and computer science journals.

United States
Hosted on Cloudflare

Top issues to fix

6 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

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

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Missing canonical link

    SEO

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

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

65

SEO

5 issue(s) found

75

Performance

769 ms

90

Security

HTTPS & header checks

90

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.

Trusted by researchers, committed to open. PeerJ delivers open-access publishing with transparent peer review across two STM and computer science journals.

Contact

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

Meta tags

Title
PeerJ - Peer-Reviewed Open Access Journals, Trusted by Researchers
Description
Trusted by researchers, committed to open. PeerJ delivers open-access publishing with transparent peer review across two STM and computer science journals.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width,initial-scale=1
Robots meta
Manifest
https://d2pdyyx74uypu5.cloudfront.net/images/favicon/peerj/manifest.json

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
Cloudflare
CDN provider
Cloudflare
IP address
104.18.39.203
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.18.39.203
  • 172.64.148.53
AAAA
  • 2606:4700:4408::ac40:9435
  • 2606:4700:440b::6812:27cb
MX
  • us-smtp-inbound-1.mimecast.com
  • us-smtp-inbound-2.mimecast.com
TXT
NS
  • daisy.ns.cloudflare.com
  • logan.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
peerj.com
Valid from
Jun 3, 2026
Valid to
Sep 1, 2026
Days until expiry
38
SAN domains
peerj.com

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 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

20 scripts · 3 stylesheets

JS / CSS size

2.6 MB · 893 KB

Page size

33.3 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
5
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Title longer than 60 characters
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

  • No H1 heading found

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://peerj.com
Final URL
https://peerj.com
HTTP status
200
HTTP version
HTTP/2
Response time
769 ms
HTML size
33.3 KB
Redirect chain
https://peerj.com

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Frequently asked questions

What technology does peerj.com use?
peerj.com is built with Google Analytics, Meta Pixel.
Is peerj.com secure (HTTPS)?
Yes. peerj.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 1, 2026.
Who hosts peerj.com?
peerj.com is hosted on Cloudflare, behind Cloudflare CDN.
What is peerj.com's SEO score?
peerj.com scored 65/100 for SEO in the latest analysis (fair).
What is peerj.com's overall website score?
peerj.com has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.
Is peerj.com hiring?
peerj.com has a careers page; check it directly for current openings.