What technology does ersei.net use?

We did not detect any specific technologies for ersei.net in the latest scan.

Is ersei.net secure (HTTPS)?

Yes. ersei.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 5, 2026.

ersei.net is hosted on PURDUE - Purdue University, US.

What is ersei.net's SEO score?

ersei.net scored 75/100 for SEO in the latest analysis (fair).

What is ersei.net's overall website score?

ersei.net has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.

ersei.net

Home | Ersei 'n Stuff

Last scanned Aug 24, 2026, 1:22 PM

Overall score

Great

Summary

Hi! I'm an HPC Solutions Engineer at KLA. This website is hosted on PURDUE - Purdue University, US. SEO is good (75/100) and accessibility is fair (60/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: No H1 heading found.

Hi! I'm an HPC Solutions Engineer at KLA. Well, it appears that I have a website now. I wonder what I can do with it? I started as a self-taught software...

United States

Hosted on PURDUE - Purdue University, US

Top issues to fix

5 issues found · 2 high priority

No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
2 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

3 issue(s) found

100

Performance

300 ms

100

Security

HTTPS & header checks

Accessibility

2 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.

Hi! I'm an HPC Solutions Engineer at KLA. Well, it appears that I have a website now. I wonder what I can do with it? I started as a self-taught software...

Contact

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

Source: https://ersei.net/contact

Meta tags

Title: Home | Ersei 'n Stuff
Description: Hi! I'm an HPC Solutions Engineer at KLA. Well, it appears that I have a website now. I wonder what I can do with it? I started as a self-taught software...
Canonical: https://ersei.net/en
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: PURDUE - Purdue University, US
CDN provider: —
IP address: 128.210.6.106
ASN: AS17 (PURDUE - Purdue University, US)

DNS records

Type	Value
A	128.210.6.106
AAAA	2607:ac80:303:102:638a:ba7f:2013:b0c
MX	mailserver.purelymail.com
TXT	v=spf1 include:_spf.purelymail.com ~all
NS	ns2.he.net ns4.he.net ns3.he.net ns5.he.net ns1.he.net
CAA	0 issue "sectigo.com" 0 iodef "mailto:security@ersei.net" 0 issue "letsencrypt.org" 0 issue "pki.goog"
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: ersei.net
Valid from: Jul 7, 2026
Valid to: Oct 5, 2026
Days until expiry: 41
SAN domains: *.ersei.net, ersei.net

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

11 internal · 21 external · 2 broken

Images

12 total · 11 missing alt

Scripts / Styles

1 scripts · 1 stylesheets

JS / CSS size

1.7 KB · 10.1 KB

Page size

10.0 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 11
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

No H1 heading found
No structured data (JSON-LD) found
sitemap.xml not found

Scan details

Requested URL: https://ersei.net
Final URL: https://ersei.net
HTTP status: 200
HTTP version: HTTP/2
Response time: 300 ms
HTML size: 10.0 KB
Redirect chain: https://ersei.net

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Frequently asked questions

What technology does ersei.net use?: We did not detect any specific technologies for ersei.net in the latest scan.
Is ersei.net secure (HTTPS)?: Yes. ersei.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 5, 2026.
Who hosts ersei.net?: ersei.net is hosted on PURDUE - Purdue University, US.
What is ersei.net's SEO score?: ersei.net scored 75/100 for SEO in the latest analysis (fair).
What is ersei.net's overall website score?: ersei.net has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.