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SGSiteGraph

perlego.com

Perlego | An online subscription for all your academic books

Last scanned Jul 26, 2026, 5:18 AM

91

Overall score

Excellent

Summary

Save up to 90% on textbooks. This website uses Next.js hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance good (80/100). Top issue: Multiple H1 headings found.

Save up to 90% on textbooks. Read over 1.5 million professional and academic ebooks in one simple space.

United States
Hosted on Cloudflare

Top issues to fix

3 issues found · 1 high priority

  • Slow estimated load (7.3s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Multiple H1 headings found

    SEO

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

  • No structured data (JSON-LD) found

    SEO

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

85

SEO

2 issue(s) found

80

Performance

7.28 s

100

Security

HTTPS & header checks

100

Accessibility

0 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.

Save up to 90% on textbooks. Read over 1.5 million professional and academic ebooks in one simple space.

Contact

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

Meta tags

Title
Perlego | An online subscription for all your academic books
Description
Save up to 90% on textbooks. Read over 1.5 million professional and academic ebooks in one simple space.
Canonical
https://www.perlego.com
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, shrink-to-fit=no
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Perlego | An online subscription for all your academic books
og:description
Save up to 90% on textbooks. Read over 1.5 million professional and academic ebooks in one simple space.
og:type
og:url
https://www.perlego.com

Twitter Card

twitter:card
summary
twitter:title
Perlego | An online subscription for all your academic books
twitter:description
Save up to 90% on textbooks. Read over 1.5 million professional and academic ebooks in one simple space.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.18.26.209
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.18.26.209
  • 104.18.27.209
AAAA
  • 2606:4700::6812:1ad1
  • 2606:4700::6812:1bd1
MX
TXT
  • yandex-verification: 8998f441acc06f3c
NS
CAA
CNAME
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
perlego.com
Valid from
Jul 14, 2026
Valid to
Oct 12, 2026
Days until expiry
77
SAN domains
perlego.com, *.perlego.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 9 · H2 14 · H3 3

Links

125 internal · 12 external · 0 broken

Images

27 total · 1 missing alt

Scripts / Styles

54 scripts · 1 stylesheets

JS / CSS size

497 KB · 84.4 KB

Page size

250 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
126
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Multiple H1 headings found
  • No structured data (JSON-LD) found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://perlego.com
Final URL
https://www.perlego.com/
HTTP status
200
HTTP version
HTTP/2
Response time
7.27 s
HTML size
250 KB
Redirect chain
https://perlego.com → https://www.perlego.com/

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Frequently asked questions

What technology does perlego.com use?
perlego.com is built with Next.js, Google Analytics, Cloudflare Analytics.
Is perlego.com secure (HTTPS)?
Yes. perlego.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 12, 2026.
Who hosts perlego.com?
perlego.com is hosted on Cloudflare, behind Cloudflare CDN.
What is perlego.com's SEO score?
perlego.com scored 85/100 for SEO in the latest analysis (great).
What is perlego.com's overall website score?
perlego.com has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.