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    Why OV and EV Validation Fails, and What Fixes It

    The CA can only accept evidence from a closed list. Work out which check failed on your order, and send the one document that clears it.

    MS
    My-SSL Team
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    14 min read
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    Published August 26, 2026
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    Last updated August 26, 2026

    The short answer

    A certificate authority is not weighing your paperwork on its merits. Section 3.2.2.1 of the CA/Browser Forum Baseline Requirements gives it four permitted ways to verify an organisation: a government agency in the jurisdiction where you were created, a third party database that qualifies as a Reliable Data Source, a site visit by the CA or its agent, or an Attestation Letter. EV narrows the list further. Nearly every stalled order has failed one of three specific checks, and once you know which one, the fix is usually a single document rather than a phone argument.

    The four classes of evidence a CA may use to verify an organisationUnder section 3.2.2.1 of the CA/Browser Forum Baseline Requirements a certificate authority may verify an applicant organisation using one of four sources: a government agency in the jurisdiction where the applicant was legally created, a third party database that qualifies as a Reliable Data Source, a site visit carried out by the CA or its agent, or an Attestation Letter written by a reliable third party such as an accountant or lawyer. The fourth option is highlighted because it is the route that does not depend on any database listing the applicant. A dashed panel at the bottom shows the category that is never admissible on its own: any document the applicant created in order to obtain the certificate, because the Baseline Requirements define a Reliable Data Source as one created by a third party for some other purpose.What a CA is permitted to accept as proof you exist1A government agency where you were incorporatedCompanies House, the commercial register, the state registry2A third party database that is a Reliable Data SourcePeriodically updated, and built for a purpose other than this3A site visit by the CA, or by an agent acting for the CARare, slow, and never carried out by the applicant4An Attestation Letter from a reliable third partyThe one route that does not need a database to list youNever admissible on its ownAnything you wrote to get the certificate: letterhead, invoices, screenshots
    Four doors, and your own paperwork is not one of them. Working out which door your order was meant to come through is most of the diagnosis.

    Why the CA cannot simply read your documents

    A validation agent has no discretion to be persuaded. The Baseline Requirements define what may count as evidence, and anything outside that definition is inadmissible however convincing it looks. That is the whole reason a company with filing cabinets full of proof can sit in a validation queue for a week: the proof is real, and none of it is in a form the CA is allowed to use.

    One clause does most of the work here. A Reliable Data Source is defined as one "generally recognized among commercial enterprises and governments as reliable, and which was created by a third party for a purpose other than the Applicant obtaining a Certificate". Read that second half again. A document produced because you are applying for a certificate fails by construction. Your letterhead, your invoice, a statement from your own director, a screenshot of your contact page: all excluded, not because the CA doubts them, but because the rule excludes the category.

    There is one narrow exception worth knowing, because it saves orders. For the address alone, and not for identity, the CA may accept a utility bill, bank statement, credit card statement or government-issued tax document. Those were created by third parties for entirely unrelated reasons, which is exactly why they qualify. It is a small door, and applicants who know it exists get through the address check without a site visit.

    Which of the three checks actually failed?

    An OV or EV order passes three organisation checks: legal existence, address, and a verified telephone number. A message saying only that validation failed tells you nothing useful, and the first productive step is to ask the CA or your reseller which check is open. Every remedy below depends on that answer, and sending the wrong evidence usually costs another business day.

    The three organisation checks behind an OV or EV order, and what stalls each oneAn organisation validated or extended validation order passes through three checks in sequence. First, legal existence: the CA confirms the company is registered and active, which stalls when the name on the order does not match the registry or the registration is too recent to appear. Second, the address: the CA confirms the applicant's address of existence or operation, which stalls on virtual offices and on addresses that differ from the registry record. Third, highlighted because it holds up the most orders, the verified telephone number: the CA must find a number in a source it already trusts and then reach a person on it, which stalls when the number is unlisted or the call is never answered by someone who can confirm the request.Three checks, run in order. Yours stopped at one of them.Legal existenceAre you registered,active, and named this?AddressDo you exist or operatewhere you say you do?Verified phoneCan a trusted sourcelead them to a human?Stalls ontrading names andfresh registrationsStalls onvirtual offices andmismatched recordsStalls onunlisted numbers andunanswered callsAsk the CA which check is open. The answer decides everything that follows.
    "Validation failed" is three different problems wearing one label, and the third one is where most orders sit.

    The order matters too. The checks run roughly in sequence, so a legal existence problem hides everything downstream of it. Fix the registry mismatch and you may discover the phone check was never reached, let alone passed. Expect to solve them one at a time rather than in a single submission.

    What the CA told youCheck that is openWhat usually clears it
    Organisation could not be foundLegal existenceExact registered name plus registry ID and jurisdiction
    Name does not match recordsLegal existenceReissue the order in the registered name, not the trading name
    Address could not be verifiedAddressA utility bill, bank statement or tax document in the company name
    Unable to verify phone numberVerified phoneA qualified directory listing, or a professional letter
    Callback not completedVerified phoneBrief whoever answers, and give a direct extension

    The address check and why virtual offices stall

    The Baseline Requirements ask the CA to verify that the address is the applicant's address of existence or operation. That phrasing is doing deliberate work: it rules out an address that is merely convenient. A mail-forwarding suite shared by two hundred registered companies is neither where you exist nor where you operate, which is why those orders stall even when the address is genuinely on your company registration.

    The simplest fix is agreement. Use the address the registry holds, spelled the way the registry spells it, including the postcode format. A surprising share of address holds are nothing more than a suite number present in one record and absent in the other.

    When the registry cannot settle it, this is where the address-only exception earns its keep. A utility bill, bank statement, credit card statement or government-issued tax document in the organisation's name is accepted for the address, and most companies can produce one within the hour. Send a document that shows the company name and the address in the same view, and avoid redacting so heavily that the connection between them disappears.

    EV holds the address to a higher standard. The EV Guidelines ask for the place of business, established through qualified government or independent sources, a site visit with photographic evidence, or a professional letter confirming the organisation actually operates there. Note who performs the site visit: the CA or an agent acting for it. Photographs you take yourself of your own office are not that, which is a disappointment applicants discover after the effort.

    The phone check: the callback nobody can reach

    This one holds up more orders than the other two together, and the reason is structural rather than practical. Under the EV Guidelines a Verified Method of Communication has to be found first in a source the CA already trusts, such as phone company records or a qualified government, tax, or independent information source, and only then called. The number you typed into the order form is the claim under test. It cannot double as the evidence for itself.

    Why a certificate authority will not call the number written on your orderTwo paths are compared. On the left, the telephone number supplied on the order form leads to a dashed box marked not acceptable on its own, because that number is the claim the CA is testing rather than independent evidence of it. On the right, the CA looks the organisation up in a source it already trusts, such as phone company records or a qualified government or independent information source, retrieves a number from there, and places the call to that number. Only the right-hand path satisfies the EV Guidelines requirement for a Verified Method of Communication, which is why a business with a working switchboard can still fail the check if its number is not listed anywhere the CA is permitted to look.The number you supply is the claim, not the proofThe number on your order formSupplied by the applicantNot acceptable on its ownIt is the thing being testedA source the CA already trustsPhone records, QGIS, QTIS or QIISThe CA calls that numberAnd a person has to confirm the requestA switchboard that works is not the same as a number the CA is allowed to use.Getting listed, or supplying a professional letter, is what moves this one.
    This is the rule that surprises established companies: the callback fails not because nobody answers, but because the CA never found a number it was allowed to dial.

    That explains the case that feels absurd from the inside: a twenty-year-old business with a working switchboard fails the phone check. The switchboard is fine. The number is simply not published anywhere the CA is permitted to look, because the company's own website does not qualify as an independent source and directory listings quietly lapsed years ago. Numbers on VoIP ranges are especially prone to this, since they often never appear in phone company records at all.

    There are two ways out. Get the main number listed in a source that qualifies, which works but takes days to propagate and is rarely fast enough for an order already in flight. Or use a professional letter, which the EV Guidelines accept as a way to confirm a method of communication, sidestepping the directory problem entirely.

    Then there is the call itself, which fails for ordinary human reasons. An automated menu with no path to a person. A receptionist who has never heard of the certificate request and declines to confirm anything. A named contact on annual leave. A spam filter on the switchboard. Tell whoever answers the main number that a certificate authority will call about an SSL order, name the person they should transfer to, and give the CA a direct extension where you can. It is unglamorous, and it resolves more holds than any document.

    When no qualified source lists you at all

    Some organisations are invisible to every database a CA is allowed to query. Newly formed companies, entities in jurisdictions with no online register, partnerships and sole traders, and organisations whose registry record is accurate but thin all end up here. The Baseline Requirements and the EV Guidelines both anticipate this and provide a letter route, with different names and different rigour.

    Which letter clears a validation hold when no database lists your organisationA decision diagram starting from the situation where no qualified source confirms the fact the certificate authority needs. For an organisation validated order, the route is an Attestation Letter as defined in the Baseline Requirements, which may be written by an accountant, a lawyer, a government official, or another reliable third party customarily relied upon for such information. For an extended validation order, the route is a Verified Professional Letter, which must be either a Verified Legal Opinion or a Verified Accountant Letter meeting the content requirements of the EV Guidelines. Both paths converge on the highlighted final step: the certificate authority independently confirms the author by obtaining their contact details from the authority that licenses or registers them, and contacting them there. The letter is therefore only as useful as the professional's licence record and their willingness to take the call.No qualified source lists you. Which letter do you need?The database route is closed to youOV: an Attestation LetterAccountant, lawyer, governmentofficial, or similar third partyEV: a Verified Professional LetterA Verified Legal Opinion or aVerified Accountant LetterThen the CA checks the author, not the letterContact details come from the licensing body, and they call
    Pick the professional for their licence record and their availability. A beautifully drafted letter from someone the CA cannot reach clears nothing.

    For OV, the instrument is an Attestation Letter: a letter attesting that subject information is correct, written by an accountant, lawyer, government official, or other reliable third party customarily relied upon for such information. The definition is deliberately broad, and CAs usually publish a template. Use theirs.

    For EV, the instrument is a Verified Professional Letter, which is either a Verified Legal Opinion or a Verified Accountant Letter, each with content requirements set out in the EV Guidelines. Since Ballot 147 in 2015 the rules around these letters have been tightened and their acceptable scope narrowed, so a letter drafted from an old sample circulating online may not meet the current text.

    The step applicants consistently underestimate comes after the letter is written. The CA does not take the letterhead at face value: it obtains the professional's contact details from the body that licenses or registers them, and contacts them there to confirm the letter is genuine. Choose someone whose licence record is current and who will pick up the phone. Include their licence or registration number and the licensing body in the letter. A letter from a hard-to-reach professional converts one stalled check into two.

    Used well, this route is fast. It is the standard answer for a company incorporated three weeks ago that cannot wait for database propagation, and it can also confirm an address and a telephone number in the same document, which means one letter can clear several open checks at once.

    What EV asks for that OV does not

    EV runs the same three checks against a stricter rulebook, plus one requirement OV does not have at all. Legal existence must be confirmed with the incorporating or registration agency itself, through a qualified government information source or direct contact, rather than through any acceptable database. The address becomes a place of business. The contact method becomes a Verified Method of Communication.

    What OV and EV each require from the applicant, compared check by checkA five row comparison of what an applicant must produce for organisation validated certificates under the Baseline Requirements against extended validation certificates under the EV Guidelines. Legal existence: OV accepts a government agency, a qualified database, a site visit, or an Attestation Letter, while EV requires confirmation through the incorporating or registration agency itself, via a qualified government information source or direct contact. Address: OV asks for the address of existence or operation and will take a utility bill or bank statement as address evidence alone, while EV asks for the place of business, established through qualified sources, a site visit with photographic evidence, or a professional letter. Contact method: OV needs a reliable method of communication to authorise the request, EV needs a verified method of communication found in a trusted source first. Individual identity, highlighted as the row that changes the work involved: OV requires none, while EV requires face to face validation of a principal individual for business entities. Identity data reuse: both fell to 398 days on 15 March 2026.The same three checks, held to two different standardsCheckOVEVLegal existenceAny of the fourpermitted sourcesThe registrationagency, or a QGISAddressExistence or operation;a utility bill can doPlace of business,evidenced properlyContact methodReliable enough toauthorise the requestVerified: found in atrusted source firstIndividual identityNot requiredFace to face, for aBusiness EntityIdentity data reuse398 days398 days, both since15 March 2026
    Most of EV is OV done more strictly. The highlighted row is the one that adds a task to somebody's calendar rather than a document to the folder.

    The addition is individual identity. For Business Entities, EV requires face-to-face validation of a Principal Individual, which schedules a person rather than requesting a file. There are also role requirements around who may approve the request and who signs the subscriber agreement, which is why EV orders from large organisations often stall in the applicant's own approvals rather than at the CA.

    None of this is a reason to avoid EV, but it is a reason to start it earlier than feels necessary. If you are still deciding between the two levels, the practical differences are laid out on the OV certificate page and the EV certificate page, and the vetting effort described here is the part that rarely appears in a comparison table.

    Documents that never clear a hold

    Applicants under time pressure tend to send more of what they already have, which is almost always the excluded category. Anything your organisation created in order to obtain the certificate is inadmissible by definition, so a second copy of it changes nothing. Knowing the list saves a round trip.

    • Company letterhead, or a signed statement from your own director confirming the company exists.
    • Invoices or contracts your organisation issued, however many.
    • A screenshot of your own website showing the address and phone number. Your site is not an independent source about you.
    • Domain WHOIS records. They establish something about the domain, not about the legal entity behind it, and are usually privacy-masked anyway.
    • Photographs you took of your own premises. An EV site visit has to be performed by the CA or an agent acting for it.
    • A DNS record or a file on your web server. Those satisfy domain control validation, which is a separate check that your order has probably already passed.

    The pattern behind the list is the same clause every time: created by a third party, for a purpose other than obtaining this certificate. Test anything you are about to send against that sentence and you will know the answer before the CA replies.

    Getting through on the first attempt

    Almost every hold described above is avoidable at order time, and the preparation takes about twenty minutes. Look your own company up in the public register and copy the legal name, registration number and address exactly as they appear. Check that the entity status is active. Then search for your main telephone number the way a stranger would, and see whether anything other than your own website returns it.

    Nominate a contact who answers their phone during the CA's working hours, in the CA's time zone rather than yours, and warn the switchboard that a call is coming. If your company was registered in the last month or two, or trades from an address no database associates with it, arrange the letter in advance rather than after the first rejection.

    One timing point is easy to miss on renewals. Since 15 March 2026 a CA may reuse validated organisation data for 398 days rather than the previous 825, so company details that sailed through two years ago are re-verified far more often now. The 398-day revalidation clock explains how that interacts with shrinking certificate lifetimes. If you want the timings for a clean order rather than a stalled one, the validation timelines by certificate type sets the expectation.

    Finally, treat the CA's validation team as a resource rather than an obstacle. They are working from a checklist they cannot deviate from, and they will usually tell you precisely which line is unticked if you ask that question directly. If your order came through a reseller, ask them to relay it. The My-SSL support team can chase a validation query on orders placed here and tell you which document the CA is waiting for.

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    Ordering an organisation validated certificate

    If you are placing a new order rather than rescuing one, the preparation above is the difference between issuance in a couple of days and a fortnight of correspondence. The product pages list what each validation level asks for before you commit to it.

    See what OV validation requires