AboutUsThe independent trust record for every website

Website report snapshot

classzone.com

ClassZone is a companion website platform for McDougal Littell textbooks in mathematics, world languages, science, social studies, and language arts. It serves students and teachers by providing online resources including quizzes, puzzles, lesson plans, and professional development tools tied to specific textbooks. The site is operated by Houghton Mifflin Company and also provides access to McDougal Littell eServices.

Can I trust this site?

Sourced website trust answer

Website report: review the evidence and ownership status

The live checks and dated facts below help you evaluate this website. If you own it, claiming it free turns this into an owner-controlled record.

Facts, not verdicts. AboutUs shows sourced signals and the next owner action; it is not a scam label.

Caution — review the findings below

1 live trust check needs a look before relying on this site.

Source freshness: 107 days old

Authority

48/100

Safety

90/100

No known risk flags

Known risk signals, not a check pass rate

3 of 4 safety checks passed (Oct 20, 2026).

Blacklist / threat feeds
No hit on the threat feed AboutUs checks.

Visit website

Evidence and details

The Authority/Safety methodology, live trust checks, and infrastructure context behind the answer above.

Trust checks

Current public signals checked for this report.

DNSgood

3 records

The domain resolves through public DNS.

Source: AboutUs public DNS lookup

HTTPSgood

Reachable

The website responded over HTTPS. Checked HTTPS host: www.hmhco.com.

Source: AboutUs live HTTPS response

HTTPS destinationunknown

www.hmhco.com

HTTPS request for classzone.com ended at www.hmhco.com. This host is outside the profile domain; check that it is the intended destination. This records the response destination, not an HTML canonical declaration or a configuration diagnosis.

Source: AboutUs live HTTPS response

Page metadatagood

Classzone.com has been retired | HMH

AboutUs could not find a meta description in the first page response.

Source: AboutUs live HTTPS response

Security headerswatch

1/3 present

Checks for HSTS, Content-Security-Policy, and X-Frame-Options headers.

Source: AboutUs live HTTPS response

Breach historygood

No breaches on record

Have I Been Pwned has no catalogued breaches for this domain. Absence of a record is not a guarantee that no breach occurred.

Source: Have I Been Pwned

How this report is built— Authority/Safety methodology, Open PageRank attribution, confidence

Authority and safety snapshot

Authority and safety signals are useful with limits

This report combines public evidence source, live checks, freshness, and ownership status so readers can evaluate the website without treating the score as a popularity rank.

Authority 48/100ClearCoverage shown; confidence not calibrated

Authority basis: Strong profile signal; AI-enriched legacy archive profile; crawler quality is 87/100. Current model authority score is 48/100 from report-derived and stored evidence inputs. External evidence used: Tranco rank, Open PageRank, RDAP age, Threat feed, DMARC, MX. Core external inputs are attached.
Safety band: Clear · Safety 90/100; 1 live trust signal need review. Model band: Clear. New or unclaimed status is not treated as unsafe by itself.

For the site owner— report score, findings, roadmap, print & download

Report score

89/100

Strong website report

Launch state

Search eligible

Eligible for launch indexing

Owner status

Claimable

No owner has verified domain control for this profile yet. Crawler and archive evidence remain visible, and official facts should be submitted through review.

Search visibility

Indexable public profile

This crawler-backed profile passed the public publication gate.

Report summary

Owner improvements available

Moderate report issues can be improved with verified owner facts, fresh crawler evidence, or corrected profile details.

0 high3 medium0 low

Report findings

What should improve before this profile becomes a stronger launch or owner asset.

mediumOwner must doNo verified owner controls this profile
Claim and verify this profile to turn public crawler data into an owner-confirmed trust record.
Verify ownership
The website owner needs to prove domain control with DNS before AboutUs treats owner facts as official.
Unlocks: Owner-controlled edits, verified status, stronger launch confidence, and paid owner setup.
Start owner claim
mediumAboutUs can doProfile data may be stale
The last stored crawl or profile update was 107 days ago.
Refresh the report
AboutUs can recrawl and compare current public signals, then keep owners informed when important facts change.
Unlocks: Fresh report evidence, useful monitoring alerts, and more confidence in downloaded snapshots.
Request monitoring or recrawl
mediumShared fix

Owner roadmap

The recommended path from public report to verified owner value.

1Claim and verify your domain for freeNextOwner access stays free. Complete DNS proof before subscribing to monitoring for this domain.Submit factual corrections for review and keep the public record accurate.Claim profile
2Review: No verified owner controls this profileLaterClaim and verify this profile to turn public crawler data into an owner-confirmed trust record.Check the evidence and submit a correction when the report is inaccurate.Suggest corrected facts
3

Trust checks

Current public signals checked for this report.

DNSgood

3 records

The domain resolves through public DNS.

Source: AboutUs public DNS lookup

HTTPSgood

Reachable

The website responded over HTTPS. Checked HTTPS host: www.hmhco.com.

Source: AboutUs live HTTPS response

HTTPS destinationunknown

www.hmhco.com

Source: AboutUs live HTTPS response

Page metadatagood

Classzone.com has been retired | HMH

AboutUs could not find a meta description in the first page response.

Source: AboutUs live HTTPS response

Security headerswatch

1/3 present

Checks for HSTS, Content-Security-Policy, and X-Frame-Options headers.

Source: AboutUs live HTTPS response

Breach historygood

No breaches on record

Have I Been Pwned has no catalogued breaches for this domain. Absence of a record is not a guarantee that no breach occurred.

Source: Have I Been Pwned

classzone.com

Website report: review the evidence and ownership status

Evidence and details

Trust checks

Authority and safety signals are useful with limits

Owner improvements available

Report findings

Owner roadmap

Website report: review the evidence and ownership status

Trust checks

Authority and safety signals are useful with limits

Owner improvements available

Report findings

Owner roadmap

Claim the report

Optional website monitoring