Certificate Chain Builder
{{ result.chain_length }}
Certificates in assembled chain
{{ result.source.host }} Port {{ result.source.port }} Fetched {{ result.fetched_count }} {{ result.chain_complete ? 'Complete to root' : 'Chain incomplete' }} {{ result.includes_root ? 'Root included' : 'Root omitted' }} {{ healthBadge.text }} Lead {{ renewalLeadDays }}d
Resolving certificate chain...
days:
# Source Subject Issuer Valid From Valid To Status Days Left CA Link Copy
{{ row.position }} {{ row.source }} {{ row.subject_cn || row.subject }} {{ row.issuer_cn || row.issuer }} {{ row.valid_from }} {{ row.valid_to }} {{ validityStatus(row) }} {{ daysToExpiryDisplay(row) }} {{ row.is_ca ? 'Yes' : 'No' }} {{ linkStatus(row, idx) }}
  • {{ w }}
Assessment: {{ healthBadge.text }}
Suggested actions:
  • {{ hint }}
Metric Value Copy
{{ row.metric }} {{ row.value }}
Priority Action Why now Target by Owner Copy
{{ row.priority }} {{ row.action }} {{ row.reason }} {{ row.deadline }} {{ row.owner }}
No operator actions available.

                    
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Introduction

SSL Certificate Chain Checker helps you work faster by turning raw inputs into a clear result package.

In practice, it checks technical states and reports pass or fail signals so you can make decisions without rebuilding the logic by hand each time.

Use it when you need repeatable output from the same logic, whether you are doing a quick check, preparing a report, or comparing multiple scenarios side by side.

Typical workflow: enter the minimum required fields, run once for a baseline, then adjust one assumption at a time to see how the output changes.

A passing check means conditions looked correct during this run; it is not a permanent security guarantee.

Everyday Use and Decision Guide

Start with a plain baseline run before exploring advanced controls. That gives you an anchor result and makes later changes easier to interpret.

In day-to-day use, most people cycle through three moves: set core inputs, compare outcomes, and export a clean snapshot for records or collaboration. The goal is not just getting a number, but understanding what changed and why.

  • If you are unsure where to start, fill only the first core field (Host or URL (optional)) and review the baseline output before touching advanced settings.
  • If the result swings too much between runs, lock one reference input (Leaf certificate (PEM)) so comparisons remain fair.
  • If a result looks unrealistic, re-check units, percent vs absolute values, and date/time formats before recalculating.
  • If you need to share the output, use the built-in copy/download controls after confirming values are complete.

Technical Details

The processing path is deterministic for the same inputs: values are normalized, validated, and then transformed into status fields, evidence fields, and error notes. Invalid entries are constrained or flagged before result rendering.

Some actions send network requests so the tool can query live endpoints and return current checks.

Inputs and results stay in the browser session unless you choose to copy or download exports.

Inputs and outputs
Field Type Role
Host or URL (optional)InputUsed in computation or validation
Leaf certificate (PEM)InputUsed in computation or validation
Upload certificate fileInputUsed in computation or validation
Preset hostInputUsed in computation or validation
PortInputUsed in computation or validation
SNI overrideInputUsed in computation or validation
#OutputShown in the results panel
SourceOutputShown in the results panel
SubjectOutputShown in the results panel
IssuerOutputShown in the results panel
Valid FromOutputShown in the results panel
Valid ToOutputShown in the results panel

Detected export paths include CSV, JSON, DOCX outputs. Chart tabs are included for visual comparison.

Step-by-Step Guide

Use this sequence for predictable runs and cleaner comparisons.

  1. Review the main form and identify the minimum fields needed for a first run.
  2. Enter core inputs: Host or URL (optional), Leaf certificate (PEM), Upload certificate file.
  3. Open advanced options only after you confirm the baseline output looks reasonable.
  4. Use the primary action controls (Reset, Advanced, Chain Summary) and read the summary panel first.
  5. Inspect detailed rows or tabs to confirm assumptions, edge cases, and warnings.
  6. Copy or download the result set when you are ready to document or share it.

After one complete pass, keep the same baseline and change only one variable per rerun.

Interpreting Results

Read the top summary first, then open detailed rows to confirm how each input contributed to the final output.

When values sit near thresholds, small input edits can flip interpretation labels. Treat boundary results as prompts for a second run rather than final answers.

  • Stable/expected: Inputs pass validation, outputs are internally consistent, and guidance suggests normal follow-through.
  • Borderline: Values sit close to decision boundaries; re-run with confirmed units and one adjusted assumption.
  • Outlier: Inputs or context produce unusual output; inspect warnings and review each field before acting.

Worked Examples

  1. Baseline run with Host or URL (optional)
    Input snapshot: Host or URL (optional): example.com; Leaf certificate (PEM): Sample value; Upload certificate file: Sample value
    Key processing note: Use default advanced settings and run once.
    Final output: You get a stable baseline output you can compare against later runs.
    What this means: This establishes a reference point before optimization.
  2. Sensitivity check
    Input snapshot: Host or URL (optional): example.com; Leaf certificate (PEM): Sample value; Upload certificate file: Sample value; adjust one advanced setting only.
    Key processing note: Re-run and compare summary deltas and warnings.
    Final output: You see which setting most strongly affects the final outcome.
    What this means: This prevents over-tuning multiple variables at once.
  3. Share-ready snapshot
    Input snapshot: Host or URL (optional): example.com; Leaf certificate (PEM): Sample value; Upload certificate file: Sample value
    Key processing note: Confirm result rows, then copy or download exports.
    Final output: Detected export paths include CSV, JSON, DOCX outputs.
    What this means: This creates a portable record for reports or team handoff.

FAQ

Does this tool store my data on a server?

Inputs and results stay in the browser session unless you choose to copy or download exports. Some actions send network requests so the tool can query live endpoints and return current checks.

How accurate are the results?

Accuracy depends on input quality and model assumptions. Treat the output as decision support, not guaranteed truth.

What formats does it accept and return?

Input handling follows the on-page fields, and outputs are presented as status fields, evidence fields, and error notes.

Can I use it when I am offline?

Core UI behavior can load without a backend, but any live network checks require connectivity.

Is there a cost or license restriction inside this tool UI?

No paywall controls are declared in this package. Review site-wide terms for broader usage policy.

What should I do when the result is borderline?

Repeat the run with one changed assumption at a time, then compare outputs before making a decision.

Glossary

Endpoint
Target host or URL that gets checked.
Status
Outcome label for a single check step.
Timeout
Maximum wait before a request is marked failed.
Evidence
Returned data used to justify the result.
False negative
A temporary failure even when setup is correct.
Retry window
Later time used to re-check unstable results.