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sunrefre.jp website report

交換できるくん【公式】｜全品無料10年保証

Last scanned

Overall score

Great

About sunrefre.jp

sunrefre.jp is a website. It describes itself as “給湯器・ビルトインコンロ・IHクッキングヒーター・ビルトイン食洗機・トイレ（ウォシュレット）・蛇口（水栓）や浴室乾燥機などの交換・取替え・買い替えを特価・割引価格でご提供できる通販サイト「交換できるくん」。メーカー正規品のみの取り扱いだから安心。「早くて」「高品質」「安心」な工事…”. It is also on YouTube, Instagram and X.

Technologies
2
jQuery
Email security
D
35/100
Trackers
—
AI crawlers
—
Carbon / visit
A+
0.07 g CO2
Domain age
—

Score profile

SEO75Performance90Security65Accessibility95
This siteAll scanned sites median

Top issues to fix

11 issues found · 3 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 viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • 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.

  • 3 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

+5 more issues — details in the sections below.

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

How it compares

sunrefre.jp scores higher overall than 40% of the 163,243 sites we have scanned.

vs. All scanned sites

163,243 sites
Overall40th
SEO60th
Performance25th
Security20th
Accessibility55th

The dot is this site; the tick is the typical (median) score for the group. The number on the right is the percentile: the share of the group this site scores above.

Technology stack

sunrefre.jp is built with jQuery and Nginx.

Libraries (1)

jQuery

Servers (1)

Nginx

Hosting & DNS

Domain
sunrefre.jp
IP address
—
ASN
—
IPv6
Not supported
HTTP
HTTP/2
0
A
0
AAAA
0
MX
0
NS
0
TXT
0
CAA
Show DNS record values

TXT record contents are not republished; only their count is shown.

Security

sunrefre.jp uses TLS 1.3 with a certificate valid for 88 more days and sets 0 of 6 recommended security headers.

Security

Security headers0 of 6 set

  • HSTS
    Forces HTTPS
  • CSP
    Blocks injected scripts
  • X-Frame-Options
    Stops clickjacking
  • X-Content-Type
    Stops MIME sniffing
  • Referrer-Policy
    Limits URL leakage
  • Permissions-Policy
    Restricts browser features

TLS certificate

VerifiedTLS 1.3 · GlobalSign nv-sa
Aug 23, 202688 days leftNov 21, 2026
Names covered
6
Cookies set
4

Email security

sunrefre.jp scores D for email security, with SPF and DMARC policy “none”.

D
35 / 100
  • SPFWeak

    Marks unlisted senders as suspicious (~all) but does not reject them.

  • DMARCWeak

    Monitoring only: forged mail is still delivered.

  • MTA-STSNot set

    Not published; mail to this domain can be downgraded to plaintext.

  • BIMINot set

    Not published (optional).

Performance & carbon

sunrefre.jp scores 90/100 for performance, with an estimated load time of 2.6 s. A visit emits an estimated 0.07 g of CO2 (grade A+).

Performance

Page weight

  • HTML 163 KB
  • JavaScript 6.0 KB
  • CSS 11.2 KB
Est. load
2.65 s
Response
2.64 s
Scripts / CSS
34 / 19

Carbon per visitA+

A+ABCDEF

0.07 g CO2 per uncached view

Estimate from the Sustainable Web Design model. HTML, JavaScript and CSS only; images, video and fonts are not measured. Treat it as a lower bound for comparing pages, not an audit.

SEO & accessibility

sunrefre.jp scores 75/100 for SEO and 95/100 for accessibility, with 4 SEO issues to fix.

SEO
Accessibility

Heading structure

H11H210H320H40H50H60

One H1: good.

Image alt text

100%

212 images · 0 without alt text · 145 lazy-loaded

Links

  • Internal 338
  • External 19
  • Broken 20

SEO issues4

  • Meta description longer than 160 characters
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues1

  • Missing viewport meta tag

Technical details

Page metadata, social tags, crawl files and scan information.

Meta tags

Title
交換できるくん【公式】｜全品無料10年保証
Description
給湯器・ビルトインコンロ・IHクッキングヒーター・ビルトイン食洗機・トイレ（ウォシュレット）・蛇口（水栓）や浴室乾燥機などの交換・取替え・買い替えを特価・割引価格でご提供できる通販サイト「交換できるくん」。メーカー正規品のみの取り扱いだから安心。「早くて」「高品質」「安心」な工事をご提供しております。
Canonical
https://www.sunrefre.jp/
Language
ja
Robots meta

Open Graph & Twitter

og:title
交換できるくん【公式】｜全品無料10年保証
og:type
article
twitter:card
—
twitter:title
—

Crawl files

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

Structured data

No JSON-LD types declared.

Microdata items
1
RDFa items
0

Scan

Final URL
https://www.sunrefre.jp/
HTTP status
200
Redirects
https://sunrefre.jp → https://www.sunrefre.jp/
Scanned
Aug 24, 2026, 1:23 PM

Own sunrefre.jp? Show your score

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sunrefre.jp SiteGraph score badge
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Frequently asked questions about sunrefre.jp

What is sunrefre.jp?
sunrefre.jp is a website. It describes itself as “給湯器・ビルトインコンロ・IHクッキングヒーター・ビルトイン食洗機・トイレ（ウォシュレット）・蛇口（水栓）や浴室乾燥機などの交換・取替え・買い替えを特価・割引価格でご提供できる通販サイト「交換できるくん」。メーカー正規品のみの取り扱いだから安心。「早くて」「高品質」「安心」な工事…”. It is also on YouTube, Instagram and X.
What technology does sunrefre.jp use?
sunrefre.jp is built with jQuery and Nginx.
Is sunrefre.jp secure?
sunrefre.jp uses TLS 1.3 with a certificate valid for 88 more days and sets 0 of 6 recommended security headers.
Is sunrefre.jp protected against email spoofing?
sunrefre.jp scores D for email security, with SPF and DMARC policy “none”.
How does sunrefre.jp compare with similar sites?
sunrefre.jp scores higher overall than 40% of the 163,243 sites we have scanned.
What is sunrefre.jp's overall score?
sunrefre.jp has an overall SiteGraph score of 80/100, combining SEO (75), performance (90), security (65) and accessibility (95).