Website readiness profile · Snapshot 23 October 2026
sakkoo.ir
sakkoo.ir's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 66/100
- Ahead of
- 64%
- Practices observed
- 18/31
- Popularity band
- Top 50K
Education & Online Learning median 61
of measured Education & Online Learning sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: sakkoo.ir. Thin bar: Education & Online Learning peer median.
Enable
44/100
Peers 75
Harden
68/100
Peers 54
Accelerate
90/100
Peers 57
Recover
0/100
Peers 13
Priority fixes for sakkoo.ir
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
robots.txt published
Observed: No robots.txt file was returned at the site root.
Why it matters: robots.txt is where crawlers look first for crawl rules and sitemap locations. Without it, they assume everything is open.
What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.
82% of Education & Online Learning peers do this. Limit: Only the standard location was requested, once, at the time of the check.
Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes
Priority 2 · Enable
XML sitemap discoverable
Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.
What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.
65% of Education & Online Learning peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · Harden
DMARC policy enforces quarantine or reject
Observed: No DMARC record was found at _dmarc.sakkoo.ir.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
36% of Education & Online Learning peers do this.
Priority 4 · Enable
Canonical URL declared
Observed: The homepage did not declare a canonical URL.
What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.
62% of Education & Online Learning peers do this.
What sakkoo.ir already does well
Practices fewer than half of Education & Online Learning peers use.
- Referrer-Policy setReferrer-Policy present.27% of peers
- Modern image formats in useWebP or AVIF images detected.32% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age covering subdomains.34% of peers
What we saw
- Homepage checked
- https://sakkoo.ir/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2026-11-17
- DNS operators
- 1 self-run or other nameserver domain
- HSTS
- max-age 365 days, includeSubDomains, preload
- Homepage HTML
- 137 KB, gzip
- Images on homepage
- 90 (png 70, webp 12, jpg 6, svg 1)
Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.
Stack and providers
Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.
All 31 checks
Select a gap for the method and fix. How each check works
Not observed 13
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- Content Security Policy present
- HTTP/3 advertised
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Social preview image set
- Nameservers spread across providers
Observed 18
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- Meta description written
- Mobile viewport configured
- Page language declared
- At most one redirect to the homepage
Own sakkoo.ir?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: sakkoo.ir. This profile covers configuration only.