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sciencenotes.org

What's New at Science Notes - Periodic Tables and More - Science Notes and Projects

Last scanned Jul 27, 2026, 9:43 AM · 2 views

88

Overall score

Great

Summary

Are you wondering what's new and what we're working on at Science Notes? Here's a running update. This website uses WordPress hosted on Google Cloud. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Are you wondering what's new and what we're working on at Science Notes? Here's a running update.

United States
Hosted on Google Cloud

Top issues to fix

6 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.

  • Title longer than 60 characters

    SEO

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

  • Multiple H1 headings found

    SEO

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

90

SEO

2 issue(s) found

100

Performance

884 ms

65

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.

Are you wondering what's new and what we're working on at Science Notes? Here's a running update.

Contact

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

Meta tags

Title
What's New at Science Notes - Periodic Tables and More - Science Notes and Projects
Description
Are you wondering what's new and what we're working on at Science Notes? Here's a running update.
Canonical
https://sciencenotes.org/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
What's New at Science Notes - Periodic Tables and More - Science Notes and Projects
og:description
Are you wondering what's new and what we're working on at Science Notes? Here's a running update.
og:type
website
og:url
https://sciencenotes.org/

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Google Cloud
CDN provider
IP address
35.212.39.79
ASN
AS15169 (GOOGLE - Google LLC, US)

DNS records

TypeValue
A
  • 35.212.39.79
AAAA
MX
  • mx10.antispam.mailspamprotection.com
  • mx20.antispam.mailspamprotection.com
  • mx30.antispam.mailspamprotection.com
TXT
  • google-site-verification=LQOwUodSA4iHXbluCzB45nPoNRvnTJRTH9aYcM56ijk
  • v=spf1 +a +mx +a:c57747.sgvps.net include:sciencenotes.org.spf.auto.dnssmarthost.net ~all
NS
  • ns1.siteground.net
  • ns2.siteground.net
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
*.sciencenotes.org
Valid from
Jul 7, 2026
Valid to
Oct 5, 2026
Days until expiry
70
SAN domains
*.sciencenotes.org, sciencenotes.org

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 4 · H2 3 · H3 12

Links

73 internal · 3 external · 0 broken

Images

12 total · 0 missing alt

Scripts / Styles

19 scripts · 1 stylesheets

JS / CSS size

565 KB · 264 KB

Page size

165 KB

Robots.txt & Sitemap

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

SEO issues

  • Title longer than 60 characters
  • Multiple H1 headings found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://sciencenotes.org
Final URL
https://sciencenotes.org
HTTP status
200
HTTP version
HTTP/2
Response time
881 ms
HTML size
165 KB
Redirect chain
https://sciencenotes.org

See something wrong on this report? Request a correction

Frequently asked questions

What technology does sciencenotes.org use?
sciencenotes.org is built with WordPress, jQuery, Google Analytics, Google Ads, Nginx.
Is sciencenotes.org secure (HTTPS)?
Yes. sciencenotes.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 5, 2026.
Who hosts sciencenotes.org?
sciencenotes.org is hosted on Google Cloud.
What is sciencenotes.org's SEO score?
sciencenotes.org scored 90/100 for SEO in the latest analysis (excellent).
What is sciencenotes.org's overall website score?
sciencenotes.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.