www.mathopenref.com
Registered
Page analyze update date:
2025/11/08 03:53:30
Last whois update date:
2026/01/29 04:58:31
Domain Status
Registered
Paid till
06.01.2031
Available from
05.02.2031
×
![Fullscreen website screenshot]()
www.mathopenref.com Website screenshot
SEO Score
46.58%
68
Score achieved
146
Maximum score
Main Information
Title: Table of Contents - Math Open Reference
Description: Math Open Reference Home page. Table of Contents.
Keywords: unknown
Page Encoding:
utf-8
Body and server charset are different!
Page Filesize: 19 KB
Server Information
IP: 35.215.87.114
Location: United States,US,Los Angeles,90060,34.0544,-118.244,America/Los_Angeles
Meta Tags List
- name: verify-v1 content: nznG33j6cHLN0OGXGTxtez3abw/0FofRO7G3igfX5EI=
- name: Description content: Math Open Reference Home page. Table of Contents.
- equiv: content-type content: text/html; charset=UTF-8
- name: viewport content: width=device-width
- name: Keywords content: home,contents
- name: viewport content: width=device-width, initial-scale=1
- equiv: origin-trial content: AlK2UR5SkAlj8jjdEc9p3F3xuFYlF6LYjAML3EOqw1g26eCwWPjdmecULvBH5MVPoqKYrOfPhYVL71xAXI1IBQoAAAB8eyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
- equiv: origin-trial content: Amm8/NmvvQfhwCib6I7ZsmUxiSCfOxWxHayJwyU1r3gRIItzr7bNQid6O8ZYaE1GSQTa69WwhPC9flq/oYkRBwsAAACCeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiV2ViVmlld1hSZXF1ZXN0ZWRXaXRoRGVwcmVjYXRpb24iLCJleHBpcnkiOjE3NTgwNjcxOTksImlzU3ViZG9tYWluIjp0cnVlfQ==
- equiv: origin-trial content: A9nrunKdU5m96PSN1XsSGr3qOP0lvPFUB2AiAylCDlN5DTl17uDFkpQuHj1AFtgWLxpLaiBZuhrtb2WOu7ofHwEAAACKeyJvcmlnaW4iOiJodHRwczovL2RvdWJsZWNsaWNrLm5ldDo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
- equiv: origin-trial content: A93bovR+QVXNx2/38qDbmeYYf1wdte9EO37K9eMq3r+541qo0byhYU899BhPB7Cv9QqD7wIbR1B6OAc9kEfYCA4AAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXN5bmRpY2F0aW9uLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
- equiv: origin-trial content: A1S5fojrAunSDrFbD8OfGmFHdRFZymSM/1ss3G+NEttCLfHkXvlcF6LGLH8Mo5PakLO1sCASXU1/gQf6XGuTBgwAAACQeyJvcmlnaW4iOiJodHRwczovL2dvb2dsZXRhZ3NlcnZpY2VzLmNvbTo0NDMiLCJmZWF0dXJlIjoiQUlQcm9tcHRBUElNdWx0aW1vZGFsSW5wdXQiLCJleHBpcnkiOjE3NzQzMTA0MDAsImlzU3ViZG9tYWluIjp0cnVlLCJpc1RoaXJkUGFydHkiOnRydWV9
Internal Links
Whois Information
domain_name: mathopenref.com
update_date: 2022-04-11T16:40:14Z
update_time: 1649695214
creation_date: 2006-01-06T22:38:13Z
creation_time: 1136587093
expiration_date: 2031-01-06T22:38:13Z
Whois Raw Data
Domain Name: MATHOPENREF.COM
Registrar: Network Solutions, LLC
Domain Status: client transfer prohibited
Creation Date: 2006-01-06T22:38:13Z
Registry Expiry Date: 2031-01-06T22:38:13Z
Updated Date: 2022-04-11T16:40:14Z
Name Server: NS1.SITEGROUND.NET
Name Server: NS2.SITEGROUND.NET
REGISTRAR Contact: Network Solutions, LLC
>>> Last update of RDAP database: 2026-01-29T07:58:31Z
Robots.txt
User-agent: *
Crawl-delay: 10
SEO Audit
Technical SEO
✓
Response Code
200
Status 200 OK - page loads correctly.
!
Character Encoding
Page: utf-8, Header:
Character encoding mismatch between HTML and HTTP headers.
✓
Page Size
19568 bytes
Page size acceptable for fast loading.
✓
Resources
17 total
Optimal number of resources.
✓
Hreflang Tags
0 hreflang tags
Add hreflang tags if you have multilingual content.
✓
Robots.txt
Exists
Robots.txt file found.
!
Sitemap
Not found
Add sitemap.xml and reference it in robots.txt.
✓
HTTPS
Yes
Secure HTTPS connection enabled.
!
Compression
br
Enable gzip or zstd compression to reduce file sizes.
!
Caching
Not set
Add cache-control headers to improve loading speed for returning visitors.
✓
Page Speed
10.97 ms
Excellent loading speed.
On-Page SEO
✓
Title
Table of Contents - Math Open Reference
Good title length (30-60 characters).
!
Meta Description
Math Open Reference Home page. Table of Contents. Lenght:50
Meta description too short. Expand to 100-160 characters.
!
H1 Heading
0 found - ""
Add exactly one H1 heading with primary keywords.
!
Word Count
145
Content very short. Aim for at least 500 words for better SEO.
!
Canonical Tag
Add canonical tag to prevent duplicate content issues.
!
Duplicate Meta
{"viewport":2}
Remove duplicate meta tags to avoid conflicts.
✓
Keywords
Meta keywords are optional (not used by major search engines).
Content and UX
!
Language
Add lang attribute to tag for accessibility and SEO.
✓
Images
0 total, 0 missing ALT
All images have proper ALT text.
✓
Viewport
width=device-width
Viewport meta tag properly set for mobile devices.
!
Open Graph
Missing: og:title, og:description, og:image, og:url
Add missing OpenGraph tags for social media sharing: og:title, og:description, og:image, og:url
!
Structured Data
0 JSON-LD scripts
Add structured data (JSON-LD) for rich snippets and better SEO.
Positions in Google
Search Phrases - Google
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 3 | /angle.html | ||
| 6 | /angle.html |
Positions in Yandex
Search Phrases - Yandex
| Position | Phrase | Page | Snippet |
|---|---|---|---|
| 6 | /triangle345.html |