What technology does postcrossing.com use?

postcrossing.com is built with Apache.

Is postcrossing.com secure (HTTPS)?

Yes. postcrossing.com uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 15, 2026.

Who hosts postcrossing.com?

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

What is postcrossing.com's SEO score?

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

What is postcrossing.com's overall website score?

postcrossing.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.

Has postcrossing.com's score changed over time?

postcrossing.com's overall score has improved by 1 point (from 89 to 90) since Jul 26, 2026.

postcrossing.com

Postcards connecting the world - Postcrossing

Last scanned Aug 2, 2026, 5:00 PM · 6 views

Overall score

Excellent

Summary

A postcard exchange project that invites everyone to send and receive postcards from random places in the world. This website uses Apache. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.

A postcard exchange project that invites everyone to send and receive postcards from random places in the world. For free!

Top issues to fix

6 issues found · 1 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 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.
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

4 issue(s) found

100

Performance

252 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+1 overall since Jul 26, 2026

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

Organization

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

A postcard exchange project that invites everyone to send and receive postcards from random places in the world. For free!

Meta tags

Title: Postcards connecting the world - Postcrossing
Description: A postcard exchange project that invites everyone to send and receive postcards from random places in the world. For free!
Canonical: https://www.postcrossing.com/
Language: en
Charset: utf-8
Viewport: width=device-width
Robots meta: index,follow
Manifest: https://www.postcrossing.com/manifest.json

Technologies

Detected frameworks, languages, and tools.

Apache

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: Amazon
Subject: postcrossing.com
Valid from: May 2, 2026
Valid to: Nov 15, 2026
Days until expiry: 105
SAN domains: postcrossing.com, *.postcrossing.com

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 1 · H3 4

Links

30 internal · 3 external · 20 broken

Images

6 total · 0 missing alt

Scripts / Styles

5 scripts · 1 stylesheets

JS / CSS size

6.8 KB · 0 B

Page size

28.6 KB

Robots.txt & Sitemap

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

SEO issues

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

Scan details

Requested URL: https://postcrossing.com
Final URL: https://www.postcrossing.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 252 ms
HTML size: 28.6 KB
Redirect chain: https://postcrossing.com → https://www.postcrossing.com/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does postcrossing.com use?: postcrossing.com is built with Apache.
Is postcrossing.com secure (HTTPS)?: Yes. postcrossing.com uses TLS 1.3 with a certificate issued by Amazon, valid until Nov 15, 2026.
Who hosts postcrossing.com?: Hosting provider information for postcrossing.com is not available yet.
What is postcrossing.com's SEO score?: postcrossing.com scored 75/100 for SEO in the latest analysis (fair).
What is postcrossing.com's overall website score?: postcrossing.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has postcrossing.com's score changed over time?: postcrossing.com's overall score has improved by 1 point (from 89 to 90) since Jul 26, 2026.