What technology does omniglot.com use?

omniglot.com is built with PHP, Google Analytics.

Is omniglot.com secure (HTTPS)?

Yes. omniglot.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 21, 2026.

Who hosts omniglot.com?

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

What is omniglot.com's SEO score?

omniglot.com scored 75/100 for SEO in the latest analysis (fair).

What is omniglot.com's overall website score?

omniglot.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.

Has omniglot.com's score changed over time?

omniglot.com's overall score has declined by 1 point (from 83 to 82) since Jul 26, 2026.

omniglot.com

Omniglot - the encyclopedia of writing systems and languages

Last scanned Aug 2, 2026, 5:00 PM · 10 views

Overall score

Great

Summary

A guide to writing systems and languages, with useful phrases, tips on learning languages, multilingual texts, and much more. This website uses PHP. SEO is good (75/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing canonical link.

A guide to writing systems and languages, with useful phrases, tips on learning languages, multilingual texts, and much more.

Top issues to fix

10 issues found · 2 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
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.

+4 more issues — details in the sections below.

SEO

4 issue(s) found

100

Performance

124 ms

Security

HTTPS & header checks

Accessibility

1 issue(s) found

Score history

-1 overall since Jul 26, 2026

Overall: 82
SEO: 75
Security: 65
Performance: 100
Accessibility: 90

Organization

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

A guide to writing systems and languages, with useful phrases, tips on learning languages, multilingual texts, and much more.

YouTube Facebook Instagram

Meta tags

Title: Omniglot - the encyclopedia of writing systems and languages
Description: A guide to writing systems and languages, with useful phrases, tips on learning languages, multilingual texts, and much more.
Canonical
Language
Charset: UTF-8
Viewport: user-scalable=yes, initial-scale=1.0, maximum-scale=2.0, width=device-width
Robots meta: all
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Google Analytics

Hosting & CDN

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

DNS records

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

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: celtiadur.com
Valid from: Jul 23, 2026
Valid to: Oct 21, 2026
Days until expiry: 79
SAN domains: *.celtiadur.com, *.omniglot.com, celtiadur.com, omniglot.com

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 5 · H3 0

Links

90 internal · 20 external · 20 broken

Images

18 total · 1 missing alt

Scripts / Styles

7 scripts · 1 stylesheets

JS / CSS size

1.3 KB · 0 B

Page size

14.5 KB

Robots.txt & Sitemap

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

SEO issues

Missing canonical link
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://omniglot.com
Final URL: https://omniglot.com
HTTP status: 200
HTTP version: HTTP/2
Response time: 124 ms
HTML size: 14.5 KB
Redirect chain: https://omniglot.com

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Frequently asked questions

What technology does omniglot.com use?: omniglot.com is built with PHP, Google Analytics.
Is omniglot.com secure (HTTPS)?: Yes. omniglot.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 21, 2026.
Who hosts omniglot.com?: Hosting provider information for omniglot.com is not available yet.
What is omniglot.com's SEO score?: omniglot.com scored 75/100 for SEO in the latest analysis (fair).
What is omniglot.com's overall website score?: omniglot.com has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
Has omniglot.com's score changed over time?: omniglot.com's overall score has declined by 1 point (from 83 to 82) since Jul 26, 2026.