PROJECTEULER.NET Website Review

Basic Information

Pages Indexed

Bing:
Google:

Page Information

Title:
About - Project Euler
Length: 21 character(s); Best length: 10 ~ 60 character(s)
Meta description:
A website dedicated to the fascinating world of mathematics and programming
Length: 75 character(s); Best length: 50 ~ 160 character(s)
Meta keywords:
programming,mathematics,problems,puzzles
Length: 40 character(s); Best length: 10 ~ 255 character(s)
H1 Tag:
Length: 0 character(s); Best length: 10 ~ 255 character(s)

Your page does not include an H1 tag.

The H1 tag in HTML is the main headline users see first when a page loads. It conveys the page's topic, enticing visitors to read further. H1 tags are crucial for SEO, user experience, and accessibility. They distinguish the main title on a webpage, aiding search engines and users in understanding the content.

Here are best practices for H1 tags

  • Use H1 tags for page titles.
  • Limit to one H1 tag per page.
  • Keep H1 tags short and concise.
  • Structure headings hierarchically.
  • Include your main keyword.
  • Ensure H1 tags are engaging.

Site Technology

Server:
Apache
SSL Secure:
Available
robots.txt:
Unavailable
XML Sitemap:
Unavailable
Gzip Compress:
Available
favicon.ico:
Unavailable

HTTP Header Analysis

HTTP header fields are components of the message header of requests and responses in the Hypertext Transfer Protocol (HTTP). They define the operating parameters of an HTTP transaction. The header fields are not directly displayed by normal web browsers like Internet Explorer, Google Chrome, Firefox etc. Below is the HTTP Header information of projecteuler.net:
HTTP/1.1 200 OK
date: Tue, 20 May 2025 10:56:36 GMT
content-type: text/html; charset=UTF-8
content-length: 2214
server: Apache
x-powered-by: PHP/8.3.13
expires: Thu, 19 Nov 1981 08:52:00 GMT
cache-control: no-store, no-cache, must-revalidate
pragma: no-cache
set-cookie: PHPSESSID=68500f6753300bbe518c9dd87f33a19a; path=/; secure; HttpOnly; SameSite=Lax
strict-transport-security: max-age=63072000; includeSubDomains
vary: Accept-Encoding
content-encoding: gzip
x-static-config: yes
x-guest-hostname: vps-cc63e9
x-xss-protection: 1; mode=block
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
referrer-policy: same-origin
content-security-policy: script-src 'self' https://cdn.jsdelivr.net/gh/highlightjs/ https://cdn.jsdelivr.net/npm/mathjax@3/ https://cdnjs.cloudflare.com/polyfill/v3/;style-src 'self' 'unsafe-inline' https://cdn.jsdelivr.net/gh/highlightjs/ https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css;
permissions-policy: geolocation=(), microphone=(), camera=()
x-cdn-cache-status: MISS
x-via: LHR6

DNS Record Analysis

Domain Name Systes (DNS) translates easily memorized domain names to the numerical IP addresses needed for the purpose of locating computer services and devices worldwide. There are total 9 DNS record(s) of projecteuler.net.
Host Type IP/Target TTL Extra Infomation
projecteuler.netA3600
projecteuler.netNS3600
projecteuler.netNS3600
projecteuler.netNS3600
projecteuler.netNS3600
projecteuler.netSOA3600expire: 1209600
serial: 1719337621
projecteuler.netMX3600pri: 10
projecteuler.netTXT
v=spf1 include:spf.stackmail.com a mx -all
3600
projecteuler.netAAAA
2a07:7800::128
1599